Post by: balarila on Dec 23, 2016 at 05:28 AM
Now, I think I'd like to get into this nostalgic tube amp thing. Considering getting a turntable, tube amp, and, since I am pretty handy on woodworking, possibly building my single-fr-driver backloaded horn speakers. Been hearing that tube amps produce exquisite sound not possible with SS amps so would like to try that out. Dabbled with a Sakura but that's not exactly the tube amp experience, I was told.
For the amp, been googling and thinking the Yaqin MC-84L could be a good choice. It's not too expensive and, to be bluntly honest, it looks cool. Of course, some good reviews, too.
Anyone have any better ideas? (I probably cannot afford a McIntosh, ST70, nor Cayin)
Is there a local source for this amp?
Post by: Nelson de Leon on Dec 23, 2016 at 06:51 AM
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Post by: balarila on Dec 23, 2016 at 07:28 AM
Any suggestions where I should get a good used tube amp? All I know are those shops in Cubao (used to be called Marikina Shoe Expo during my time).
Damay mo na din yun casing ng tube amp mo with your DIY speaker project. Hehe! Why not get a pre-owned one muna and see if the sound is to your liking.
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Post by: Nelson de Leon on Dec 23, 2016 at 07:58 AM
Of course! Tube amp case should be a nice little woodworking project.
Any suggestions where I should get a good used tube amp? All I know are those shops in Cubao (used to be called Marikina Shoe Expo during my time).
AFAIK meron ata sa Watt Hifi in Makati.
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Post by: ricky on Dec 23, 2016 at 08:30 AM
Exciting pag gumawa ka enclosures mo, you can ask timber din re that.
Post by: onedown on Dec 23, 2016 at 08:46 AM
Post by: balarila on Dec 23, 2016 at 10:10 AM
Great leads. Will be busy over the holidays chasing them.
Post by: CoolTOYZPH on Dec 23, 2016 at 10:15 AM
Post by: balarila on Dec 23, 2016 at 12:18 PM
Post by: rochie on Dec 23, 2016 at 01:23 PM
Post by: balarila on Dec 23, 2016 at 02:33 PM
Why do you ask? Are there inexpensive but excellent amp kits here?
Post by: rochie on Dec 23, 2016 at 02:52 PM
Built a Super-heterodyne when I was in high-school so, with some refresher, I can probably solder. But, I don't think I can recall reading transistors nor interpreting the color bands of resistors.
Why do you ask? Are there inexpensive but excellent amp kits here?
PM'ed you sir.
Post by: balarila on Dec 23, 2016 at 04:24 PM
Wow! That's how I would condense all those adjectives and words that audiophiles use which I don't understand (rich, pleasing, soundstage, bottom end, etc).
I can see a tube amp in my future. If only they weren't too expensive.
The Cayin MT12N sounded great and is within budget-striking distance.
The Cayin LA-34 sounded better but jumps quite a bit in price, not sure if the difference is worth it.
Will go on a listening adventure soon.
Post by: ricky on Dec 23, 2016 at 05:06 PM
Post by: JojoD818 on Dec 23, 2016 at 05:09 PM
Advance congrats na Ding! 8)
Post by: JojoD818 on Dec 23, 2016 at 05:12 PM
Been a few years since I last posted. Been enjoying my HT since, thanks to this forum.
Now, I think I'd like to get into this nostalgic tube amp thing. Considering getting a turntable, tube amp, and, since I am pretty handy on woodworking, possibly building my single-fr-driver backloaded horn speakers. Been hearing that tube amps produce exquisite sound not possible with SS amps so would like to try that out. Dabbled with a Sakura but that's not exactly the tube amp experience, I was told.
For the amp, been googling and thinking the Yaqin MC-84L could be a good choice. It's not too expensive and, to be bluntly honest, it looks cool. Of course, some good reviews, too.
Anyone have any better ideas? (I probably cannot afford a McIntosh, ST70, nor Cayin)
Is there a local source for this amp?
Audition audition audition .
Ding, this is part of the adventure.
Post by: tony on Dec 23, 2016 at 05:57 PM
Quote
The Cayin MT12N sounded great and is within budget-striking distance.
based on the el84 output tubes, sweet sounding pentode.....
Quote
The Cayin LA-34 sounded better but jumps quite a bit in price, not sure if the difference is worth it.
based on the El34 output tubes, sweet sounding pentode
but about twice the power, so the spike in price is not surprising.....
Post by: ricky on Dec 23, 2016 at 06:41 PM
Post by: ricky on Dec 23, 2016 at 06:43 PM
Post by: tony on Dec 23, 2016 at 06:51 PM
you may also want to check out john poscablo at libertad in pasay....
Post by: tony on Dec 23, 2016 at 06:52 PM
Post by: CoolTOYZPH on Dec 23, 2016 at 08:15 PM
If interested PM me for details.
Antipolo and Quezon City.
Post by: JojoD818 on Dec 23, 2016 at 09:48 PM
Ding is a phycicist btw, and he is building a boat in his place for leisure. Masisira ulo nya sa audio hahaha
Graduate na sa HT kaya sa audio naman muna... dami pwede gawin ni Ding na project diyan for sure :)
Post by: balarila on Dec 24, 2016 at 07:32 AM
Tony mentioned Andrew Sevilla. Got in touch with him when I came across his name in some thread, too, and got his number from Ricky (Thanks!). We traded several text messages and it's exciting.
He recommended an EL34 Single Ended Amp, 10W/ch, 3 line inputs. Well within budget. Extra if I wanted it pimped out.
I'm leaning towards having it done by Andrew. Aside from being cost-effective, there's the certain pride in having a Filipino designed-and-made excellent amp. Only problem with this approach is that I don't get to hear before I buy so I will just have to rely on what people say about his work.
@Tony
Still in love with the Sakura. But the selector switches and volume knobs are starting to act up. Need replacing. I think I stowed have some good pots somewhere and will just have to source the selector switch (Deeco?). But I'd rather tinker with wood for now than soldering; unless I stumble into a cheap ST-70 kit. Know anyone who can do this for me? Or soup it up?
@CoolTOYZPH
Thanks very much for the offer! Hiya naman ako manghiram. I think Hi-Fi is also your business(?) so I would hesitate to take advantage of your generosity without a commitment of sale. How about if I drop by your shop and hear your goodies there?
Some questions, if you don't mind:
I plan to build my speakers on a Fostex FE126En (will order and ship thru Forex). I'm thinking Frugel-Horn MarkIII(http://www.frugal-horn.com/FH3.html (http://www.frugal-horn.com/FH3.html)) is simple enough to build. But there's also the Olson-Nagaoka (http://www.frugal-horn.com/spawn.html (http://www.frugal-horn.com/spawn.html)) cabinets. Suggestions?
I am limiting my amp selection to 15W because the Fostex is rated at 15W input and SPL of 93db. My listening room will be enclosed and quiet so I don't need all that oomph. Am I right in this matching?
- Are the words sensitivity, efficiency, and SPL equivalent?
- What output power should I specify for the amp given a certain input power rating of my drivers?
Post by: onedown on Dec 24, 2016 at 07:43 AM
when you get an offer to home audition n equipment, consider it. there's nothing better than auditioning equipment in your own room. the room after all, plays a big factor.
Post by: tony on Dec 24, 2016 at 07:57 AM
balarila,
when you get an offer to home audition n equipment, consider it. there's nothing better than auditioning equipment in your own room. the room after all, plays a big factor.
true, in your listening position is the best place to audition...
i have had stories about how the gear sounded magically in the store
only to lose the magic once tha amp is brought home....
Post by: tony on Dec 24, 2016 at 08:03 AM
Quote
@Tony
Still in love with the Sakura. But the selector switches and volume knobs are starting to act up. Need replacing. I think I stowed have some good pots somewhere and will just have to source the selector switch (Deeco?). But I'd rather tinker with wood for now than soldering; unless I stumble into a cheap ST-70 kit. Know anyone who can do this for me? Or soup it up?
i use a lighter fluid(carbon tetrachloride) to clean those,
bought mine in 2010 and still lives....
my brother swapped it with his audiolab 8080...
markrenz can help you....or Ronald de Jesus
from caloocan is also one good tech....you can catch him on facebook....
your fostex speakers can use a 2A3 set, and for that
John Pocablo is the best guy to go to....
Post by: ricky on Dec 24, 2016 at 08:32 AM
Post by: tony on Dec 24, 2016 at 08:41 AM
and sometimes mang rod....
if you are after world class traffo, the Edrel Sison also makes those
at a slightly higher cost because of the virgin
materials used....
Post by: balarila on Dec 24, 2016 at 08:43 AM
true, in your listening position is the best place to audition...
i have had stories about how the gear sounded magically in the store
only to lose the magic once tha amp is brought home....
Sounds like good advice. Thanks.
@CoolTOYZPH
Mind PM-ing me your conditions on the home demo? I would like to try buy, since I am in the window-shopping stage, I cannot commit to a buy-if-I-like yet. Salamat!
Post by: CoolTOYZPH on Dec 24, 2016 at 09:18 AM
How it sounds at home is always different from the sound at the dealer... 😊
Post by: JojoD818 on Dec 24, 2016 at 11:39 AM
Some questions, if you don't mind:
I plan to build my speakers on a Fostex FE126En (will order and ship thru Forex). I'm thinking Frugel-Horn MarkIII(http://www.frugal-horn.com/FH3.html (http://www.frugal-horn.com/FH3.html)) is simple enough to build. But there's also the Olson-Nagaoka (http://www.frugal-horn.com/spawn.html (http://www.frugal-horn.com/spawn.html)) cabinets. Suggestions?
I am limiting my amp selection to 15W because the Fostex is rated at 15W input and SPL of 93db. My listening room will be enclosed and quiet so I don't need all that oomph. Am I right in this matching?
- Are the words sensitivity, efficiency, and SPL equivalent?
- What output power should I specify for the amp given a certain input power rating of my drivers?
The FH has a longer horn length than the ON, however the ON has a wider horn mouth than the FH. For the novice it is going to be a nightmare choosing which one. But personally, I'd vote for the Frugel build. Or, being a master woodworker, why not build both? Just teasing. ;D
Do not limit your amp selection by virtue of output power. You can use a 100W amp for a 10W speaker. Your fingers will be the limiter here so you don't overdrive your speaker. Besides, using a high power output amp gives you more dynamic headroom, whilst a low power output amp will tend to compress, this compression is where tube amps are king... and is the very science/reason why they tend to sound "louder" than their SS counterparts.
No they are not the same. Sensitivity denotes an SPL number based on a given input power. Efficiency is the manner in which the speaker/enclosure combination translates a given input power into SPL. Finally, SPL is a measure of the converted signal.
Output power of amps are quite trivial, I'd suggest you look at it this way. A speaker with high sensitivity requires far more little from an amp while a speaker with medium to low sensitivity will ask a bit more to reproduce the same amount of energy. This difference is the more important factor to consider in choosing an amp, it must be able to deliver a bit more in case it is needed, or it will compress. Compressed music is lifeless.
Post by: JojoD818 on Dec 24, 2016 at 11:44 AM
This may help you understand it easier....
If you have a piece of hardwood, say a 2x4 and you want to round over an edge. A 250W trim router will surely work right? But a 3 horse power monster of a plunge router will be better.
Cheers
Jojo
Post by: JojoD818 on Dec 24, 2016 at 11:45 AM
Ding, amx amps are value for money talaga and tama ka buy Pinoy made is the best. Ikaw na gumawa ng cabinetry. I also think he can do that st-70 kit for you, or maybe jojo
Sorry pare, pass muna ako.
Post by: ricky on Dec 24, 2016 at 11:55 AM
Post by: JojoD818 on Dec 24, 2016 at 12:02 PM
Jo huminga ka naman KASI minsan hahaha.
Humaba ng husto pila eh.
Seriously, 2017 na pare... game na!
Post by: nelcarol1994 on Dec 24, 2016 at 12:43 PM
Dami pala mangkukulam dito! ;DTry to consider also audio nirvana full range speaker from commonsenseaudio.com
Tony mentioned Andrew Sevilla. Got in touch with him when I came across his name in some thread, too, and got his number from Ricky (Thanks!). We traded several text messages and it's exciting.
He recommended an EL34 Single Ended Amp, 10W/ch, 3 line inputs. Well within budget. Extra if I wanted it pimped out.
I'm leaning towards having it done by Andrew. Aside from being cost-effective, there's the certain pride in having a Filipino designed-and-made excellent amp. Only problem with this approach is that I don't get to hear before I buy so I will just have to rely on what people say about his work.
@Tony
Still in love with the Sakura. But the selector switches and volume knobs are starting to act up. Need replacing. I think I stowed have some good pots somewhere and will just have to source the selector switch (Deeco?). But I'd rather tinker with wood for now than soldering; unless I stumble into a cheap ST-70 kit. Know anyone who can do this for me? Or soup it up?
@CoolTOYZPH
Thanks very much for the offer! Hiya naman ako manghiram. I think Hi-Fi is also your business(?) so I would hesitate to take advantage of your generosity without a commitment of sale. How about if I drop by your shop and hear your goodies there?
Some questions, if you don't mind:
I plan to build my speakers on a Fostex FE126En (will order and ship thru Forex). I'm thinking Frugel-Horn MarkIII(http://www.frugal-horn.com/FH3.html (http://www.frugal-horn.com/FH3.html)) is simple enough to build. But there's also the Olson-Nagaoka (http://www.frugal-horn.com/spawn.html (http://www.frugal-horn.com/spawn.html)) cabinets. Suggestions?
I am limiting my amp selection to 15W because the Fostex is rated at 15W input and SPL of 93db. My listening room will be enclosed and quiet so I don't need all that oomph. Am I right in this matching?
- Are the words sensitivity, efficiency, and SPL equivalent?
- What output power should I specify for the amp given a certain input power rating of my drivers?
Sent from my iPad using Tapatalk
Post by: balarila on Dec 25, 2016 at 01:57 AM
Sir not for sale, for trial only. I am no longer in audio trading.
How it sounds at home is always different from the sound at the dealer... 😊
My apologies then. I assumed you had commercial intentions. Really appreciate this. People like you make this forum a lot lot nicer.
Call!
I will be in a meeting in Makati on Thu late morning so, on way back, maybe I can meet up where comfortable for you. PM na lang tayo.
Salamat and Merry Christmas!
Post by: balarila on Dec 25, 2016 at 02:07 AM
Many thanks for the tips.
@Jojo
Your explanations are crystal. That router analogy was the homerun.
@NelCarol
Heard about Audio Nirvana for some time now. Will google it.
This is probably one of the coolest looking amps I've seen.
(https://scontent.fmnl3-1.fna.fbcdn.net/v/t1.0-9/10485904_314672592024607_4338490948768531524_n.jpg?oh=ff585658e0d367a4517e65da238457e0&oe=58E8C117)
Made by Andrew.
It's a 300B and costs more than double the EL34 but both are 10W. Here's the idiot question: What's the difference? Should I hold out for the 300B?
Merry Christmas!
Post by: tony on Dec 25, 2016 at 07:36 AM
Quote
You can use a 100W amp for a 10W speaker
very true.....and in my case, i stopped counting the watts altogether,
for as long as your amp can drive your speakers to your liking.....
Quote
It's a 300B and costs more than double the EL34 but both are 10W. Here's the idiot question: What's the difference? Should I hold out for the 300B?
only you can answer that......
Post by: balarila on Dec 25, 2016 at 09:36 AM
only you can answer that......
Guess I should've phrased my question more clearly. Why are 300B's considerably more expensive than EL34s or KT88s? Do they last longer? Do experts perceive they produce better sound?
Post by: CoolTOYZPH on Dec 25, 2016 at 09:47 AM
When I was starting with Tube Amps, fellow music lovers lent me their gears to allow me to experience the tube magic.
My apologies then. I assumed you had commercial intentions. Really appreciate this. People like you make this forum a lot lot nicer.
Call!
I will be in a meeting in Makati on Thu late morning so, on way back, maybe I can meet up where comfortable for you. PM na lang tayo.
Salamat and Merry Christmas!
Post by: CoolTOYZPH on Dec 25, 2016 at 09:49 AM
They do not last longer.
Each tube has their own flavor and it is really a matter of preference.
I am more of a 6550/EL-34 type.
Guess I should've phrased my question more clearly. Why are 300B's considerably more expensive than EL34s or KT88s? Do they last longer? Do experts perceive they produce better sound?
Post by: onedown on Dec 25, 2016 at 10:05 AM
Post by: tony on Dec 25, 2016 at 10:10 AM
Guess I should've phrased my question more clearly. Why are 300B's considerably more expensive than EL34s or KT88s? Do they last longer? Do experts perceive they produce better sound?
i got you the first time....
it doesn't really matter what the experts perceive....
what must matter is what you percieve, you will live with your
decision, not the so called experts...
tubes used on a single ended type amp are operated
very close to their plate limits, because that is how they sound
their best.... and a shorter life can be the natural consequence...
but why worry over this? tubes are meant to die sometime,
they do not last a lifetime...
over time, the cathodes of the tubes gets depleted, and transconductance decreases to a point that renders the tube unfit for the application and so needs to be replaced...
unless you can accept this as a natural progression of tube life,
then stop.....
the push pull amp otoh are operated cooler and so can last much longer...
again, why more expensive? because of the hypes.....
Post by: CoolTOYZPH on Dec 25, 2016 at 10:20 AM
Tube Pre-AMP + Solid State Power AMP.
Benefits are:
1) LESS Maintenance on Tubes specially compared to Single Ended Designs
2) MORE options for speakers since Solid State AMPS may offer more power.
Post by: tony on Dec 25, 2016 at 10:29 AM
Quote
Tube Pre-AMP + Solid State Power AMP.
sakura AV-200
Post by: CoolTOYZPH on Dec 25, 2016 at 10:37 AM
Post by: balarila on Dec 25, 2016 at 11:17 AM
The reason I've been asking these questions (aside from being tube-ignorant) is that I am hesitating to audition now since my first choice is to go with Andrew's build (nationalistic and budget reasons) and auditioning elsewhere with little intent to buy is unfair to the commercial establishment. Kinda like trying on clothes at the mall then buying it online.
I therefore would like to gain as much info from experiences of people here. Of course, as Tony said, your ears and environment can be vastly different from mine.
Buti na lang hulog ng langit si Jojo (CoolTOYZPH) and he is lending me a EL34 amp. At least, I get to experience somewhat what Andrew is recommending for me.
If I break down from my scruples, I may end up auditioning still, justifying it as providing the shop with an opportunity to sway me.
Meantime, research muna 'ko. So many things to learn. Don't even know what the amp classes are; just getting introduced to SET and push-pull; boning up on EL34, KT88, 300B.
Post by: tony on Dec 25, 2016 at 11:18 AM
Are the tubes in the SAKURA AV-200 designed more as a Tube Pre-Amp or Tube Buffer?
anything before the power amp is a pre amp...
it can be passive like the tvc or plain jane pot,
a buffer or a line stage....
it all depends, some program sources are high enough
so that a passive preamp suffices...or a buffer...
if the program source do not have an output level
sufficient enough for the power amp, then use a line amp...
so horses for courses.....
Post by: tony on Dec 25, 2016 at 11:23 AM
Quote
If I break down from my scruples, I may end up auditioning still, justifying it as providing the shop with an opportunity to sway me.
you have your fostex speaker and that is were we start....
your options are an el84 pp amp, or a single ended 6550/6l6gc/el34 which Andrew can supply you....
listen to both types, a pp amp and a single ended
and see which one sways you best....
Post by: tony on Dec 25, 2016 at 11:29 AM
Quote
Heard about Audio Nirvana for some time now.
marikina is just a stones' throw away from antipolo,
Jun, aka remington here owns many of those, he even has
an AMX el84 pp amp for you to audition....
but i must warn you, once you get to hear the Audio Nirvanas
and the el84 pp amp....you may end up dumping those fostex....
so be warned...... >:D
Post by: balarila on Dec 25, 2016 at 11:46 AM
...but i must warn you, once you get to hear the Audio Nirvanas
and the el84 pp amp....you may end up dumping those fostex....
so be warned...... >:D
Don't have the Fostex yet. Still to order. So am a bit flexible there.
Reason I focused on them is because they seem to be a popular choice among DIYers at Frugal-Horn. And I like the elegant approach of having a 4-inch driver produce beautiful sound. Will check out AudioNirvana. Would they also be suited for a FH3?
Post by: JojoD818 on Dec 25, 2016 at 12:46 PM
However, the Audio Nirvanas are frequent in the marketplace so you may check them out too.
Post by: Nelson de Leon on Dec 25, 2016 at 01:05 PM
Don't have the Fostex yet. Still to order. So am a bit flexible there.
Reason I focused on them is because they seem to be a popular choice among DIYers at Frugal-Horn. And I like the elegant approach of having a 4-inch driver produce beautiful sound. Will check out AudioNirvana. Would they also be suited for a FH3?
Those 4" full range drivers are very sweet in the mids. Kaya lang if you have a "kinda" loud listening level, it may not be for you.
Post by: ricky on Dec 25, 2016 at 02:21 PM
I mean pag vocals, very sweet sounding sya,pag pop naman not so good. Pag new wave bitin. So depende talaga ano gusto mo.
300b punchy sound pero ang mahal ng tubes nya (kasing laki coke solo)
Dont be discourage about changing the tubes, napakatagal naman ng buhay, yun kay mrs ginamit pa nya pang videoke and up to now ok pa.
Also diff brands of tubes on a single type can give you diff sound character(hindi masyado noticeable MINSAN) pero you can play along with it.
PP amps are mo flexible bec of the power , while set/sep na 8-10watts namimili talag ng speakers at music.
Post by: ricky on Dec 25, 2016 at 02:23 PM
After the amps and speakers, yung source mo naman, cd, tt or hdd? Hi di pa natin pinaguusapan cables ha.
Post by: JojoD818 on Dec 25, 2016 at 02:44 PM
Ang masasabi ko lang , di hamak na magastos ang audio kaysa ht hahaha. You have been warned pare.
After the amps and speakers, yung source mo naman, cd, tt or hdd? Hi di pa natin pinaguusapan cables ha.
Medyo mahirapan si Ding pumili, lahat ng choices niya magaganda. ;)
Post by: tony on Dec 25, 2016 at 07:05 PM
Those 4" full range drivers are very sweet in the mids. Kaya lang if you have a "kinda" loud listening level, it may not be for you.
in our first outing at Dusit, Tony Rodriquez made use of a sony 4 incher full ranger in a line transmission box..it was powered by my pp el34 st70 clone....playing a joe morello take 5 cut, a guy approached me and asked me, sir, nasaan po nakalagay yung subwoofer nyo? he was fooled into thinking that we had a subwoofer in the room....
Post by: balarila on Dec 25, 2016 at 10:20 PM
Ding i can lend you set/sep amp using el34 driving a kefq1. Sounds nice pero namimili pa din ng type of music.
I mean pag vocals, very sweet sounding sya,pag pop naman not so good. Pag new wave bitin. So depende talaga ano gusto mo.
300b punchy sound pero ang mahal ng tubes nya (kasing laki coke solo)
Dont be discourage about changing the tubes, napakatagal naman ng buhay, yun kay mrs ginamit pa nya pang videoke and up to now ok pa.
Also diff brands of tubes on a single type can give you diff sound character(hindi masyado noticeable MINSAN) pero you can play along with it.
PP amps are mo flexible bec of the power , while set/sep na 8-10watts namimili talag ng speakers at music.
Call! Kaya lang we live in different galaxies. Meet up may be difficult. Try ko muna yung kay Jojo. Pag bitin pa, will call you. Salamat!
Post by: balarila on Dec 25, 2016 at 10:24 PM
in our first outing at Dusit, Tony Rodriquez made use of a sony 4 incher full ranger in a line transmission box..it was powered by my pp el34 st70 clone....playing a joe morello take 5 cut, a guy approached me and asked me, sir, nasaan po nakalagay yung subwoofer nyo? he was fooled into thinking that we had a subwoofer in the room....
Ha-ha. Must be a well matched set-up.
I must admit: When I auditioned the Cayins, I was impressed on vocals and strings. But when I listened to full orchestral music, medyo bitin sa kapal. Can't really appreciate the timpanis. Was thinking that, after I build my 4"FR in a FH3, there could be a powered sub in my future. So, maybe I will not need a sub after all. We'll see.
Post by: Nelson de Leon on Dec 26, 2016 at 02:09 AM
Those 4" full range drivers are very sweet in the mids. Kaya lang if you have a "kinda" loud listening level, it may not be for you.
in our first outing at Dusit, Tony Rodriquez made use of a sony 4 incher full ranger in a line transmission box..it was powered by my pp el34 st70 clone....playing a joe morello take 5 cut, a guy approached me and asked me, sir, nasaan po nakalagay yung subwoofer nyo? he was fooled into thinking that we had a subwoofer in the room....
I was also there. But my point is loud and not low. However that was a good pair. It has also undergone so many many variations as per enclosure. I'm sure Ding would enjoy that. ;D He can experiment on multiple drivers, arrays etc. That would keep him busy for a few years. Hehe!
Post by: tony on Dec 26, 2016 at 08:17 AM
Post by: JojoD818 on Dec 26, 2016 at 12:16 PM
Post by: tony on Dec 26, 2016 at 12:47 PM
http://wiki.c2.com/?ThereIsNoSpoon
Post by: tony on Dec 26, 2016 at 04:56 PM
his handle is 6A3fan, i know his first name is Felix.....i sold him some
6aq5's a long time ago....
he posts in wiredstate.com....http://www.wiredstate.com/forum/viewtopic.php?t=26025
not sure that he posts here though,
another diy'er you may want to check out.....
i have not met him but he strikes me as a nice guy......
Post by: balarila on Dec 26, 2016 at 09:24 PM
@balarila, there is another diy'er near to where you are in Cainta....
his handle is 6A3fan, i know his first name is Felix.....i sold him some
6aq5's a long time ago....
he posts in wiredstate.com....http://www.wiredstate.com/forum/viewtopic.php?t=26025
not sure that he posts here though,
another diy'er you may want to check out.....
i have not met him but he strikes me as a nice guy......
Thanks, Tony. Will consider.
Post by: balarila on Dec 26, 2016 at 09:51 PM
Was extremely tired and was planning to just set it up tomorrow. But could not resist.
My home theater rebuild is still in progress. Ceiling and walls done but about 80% into floor installation. Have not reinstalled my side reflection absorption panels and bass traps yet. But excited boys know no restrictions, so set up the Yaqin and hooked up to my only Ok speakers: an old pair of Wharfedale Diamond 9.1. Got my Fiio Hires player and cued the HD cut of the Barbra Streisand-Billy Joel duet of "New York State of Mind" then called SWMBO down to listen.
When the piano intro started we both felt...Hmmm....ok...it's nice. Then Streisand said "Well..." We instantly looked at each other and SWMBO exhaled a "Whoa!"
The very first word of the song, not even sung musically, was so real and with such velvet impact that we were blown away then mesmerized. The rest of the song played and my kids walked in and my son sat on the floor and closed his eyes. He said, "It's like they're just right there."
I then played a wide spectrum of pieces: Indigo Girls, Benoit & McCullen, Sheeran, Clapton, Spinners, then went into some movie themes; Bon Jour (Beauty & the Beast) and even Magnificent 7. (Reserves John Williams for tomorrow) Even did some EDMs then went into some Bach organ baroque.
It was pure, unadulterated pleasure. Like an adolescent taken by a favorite uncle into a whorehouse. Except ecstatically wholesome.
And my room was not even acoustically set up yet.
Post by: tony on Dec 27, 2016 at 06:50 AM
Quote
And my room was not even acoustically set up yet.
Tony Rodriquez is your man for that....
Post by: ricky on Dec 27, 2016 at 09:06 AM
Btw baliktad treatment ng audio sa ht ha, pero most ht treated rooms ko happy din naman mga clients pag dating sa audio side kahit ang naging priority ko is the ht talaga.
Post by: balarila on Dec 27, 2016 at 09:20 AM
Ding ,congrats game over na, ok na yan. I suggest you get that. Stop the audition process na hahaha.sa akin kasi once napakinggan mo na gusto mo that's it na. Wala naman talaga pangit, meron mas maganda lang pero konti na lang difference. Minsan mas nakakagulo lang sa process at sa huli baka wala ka na mapili. Keep it simple.
Btw baliktad treatment ng audio sa ht ha, pero most ht treated rooms ko happy din naman mga clients pag dating sa audio side kahit ang naging priority ko is the ht talaga.
Oops. What do you mean baligtad? I plan to put use my HT also as my listening room. So far, I have first reflection points covered on side walls and ceiling. I also have bass traps at the rear wall. They are, of course, not installed right now as I had repainted the walls. What should I do differently? Or is this a huge topic?
Rebuild in progress
(https://photos.smugmug.com/Other/Home-Theater-Rebuild/i-LTJ2qB9/0/M/IMG_1272-M.jpg)
Auditioning Jojo's Yaqin
(https://photos.smugmug.com/Other/HiFi/i-4kCD6LR/0/M/IMG_1282-M.jpg)
Post by: balarila on Dec 27, 2016 at 09:31 AM
Tony Rodriquez is your man for that....
Thanks for the tip. But I already have another expert who helped me out in my HT setup: Ricky Ongkeko.
When I built my HT, it was a concrete box with Bose Acoustimass speakers, a white cloth for a screen, and an old Infocus projector. Horrible. An echo chamber with grainy video.
With lots of advice from Ricky, I now have a huge, proper screen, sound absorption panels, and Epson projector, and SVS speakers. Lots of happy family hours there.
Post by: CoolTOYZPH on Dec 27, 2016 at 11:41 AM
Please do try switching from ultralinear & triode mode to determine what type of AMP will suit your music preference.
The switch is on the left of the front panel.
Post by: ricky on Dec 27, 2016 at 11:47 AM
Post by: ricky on Dec 27, 2016 at 11:50 AM
Audio gusto mo wide soundstage, ht gusto mo pinpoint dialogues. Pero depende pa din sa preference ng listener. Kung na enjoy mo na sa room mo ok na, mapapansin mo difference once you put the treatment back in place
Thank you for appreciating my help :)
Post by: CoolTOYZPH on Dec 27, 2016 at 12:04 PM
I upgrade the EL34 tube to PSVANE and 4(2Lx2R) 6J1 toMullard 5654.
Jojo switchable sya? Wow ok na talaga yan.
Post by: geriboy on Dec 27, 2016 at 12:37 PM
Yes switchable. "MC-30L is a 100% Class A push-pull, Integrated Tube Amplifier, based on famous EL-34B and with 6J1 as drivers and for voltage amplification what can be operated either in triode of in ultra-linear mode. It features digital channel indication, infrared remote control, front panel headphone output and external bias adjustment system".
I upgrade the EL34 tube to PSVANE and 4(2Lx2R) 6J1 toMullard 5654.
Nice :D triode mode, meaning single ended triode?good rin na upgraded na rin ang tubes ng unit
Post by: geriboy on Dec 27, 2016 at 12:48 PM
Ding ,congrats game over na, ok na yan. I suggest you get that. Stop the audition process na hahaha.sa akin kasi once napakinggan mo na gusto mo that's it na. Wala naman talaga pangit, meron mas maganda lang pero konti na lang difference. Minsan mas nakakagulo lang sa process at sa huli baka wala ka na mapili. Keep it simple.
...
At least with the yaqin amp, pwede mamili whether triode or ultralinear mode depende sa speakers at preference ng makikinig :D
Post by: ricky on Dec 27, 2016 at 01:22 PM
Post by: tony on Dec 27, 2016 at 01:24 PM
Thanks for the tip. But I already have another expert who helped me out in my HT setup: Ricky Ongkeko.
When I built my HT, it was a concrete box with Bose Acoustimass speakers, a white cloth for a screen, and an old Infocus projector. Horrible. An echo chamber with grainy video.
With lots of advice from Ricky, I now have a huge, proper screen, sound absorption panels, and Epson projector, and SVS speakers. Lots of happy family hours there.
apologies to Ricky, i never realised he was into those till now....
Post by: tony on Dec 27, 2016 at 01:28 PM
and a triode mode is a triode.....needed higher driver voltage swing, and produces less power...
but many knows this already....
Post by: balarila on Dec 27, 2016 at 01:41 PM
Napabili tuloy ako ng Kindle book: Vacuum Tube Amplifier Basics.
This is embarassing. I am a physicist but ignorant on vacuum tubes.
Medyo busy with work these next few days. Will reinstall my room treatments on Friday then listen to all sorts of music and different modes.
Post by: ricky on Dec 27, 2016 at 01:42 PM
apologies to Ricky, i never realised he was into those till now....
No problem kuya tony. Yes full time minsan pag wala masyado gawa sa planta.
Post by: ricky on Dec 27, 2016 at 01:44 PM
Post by: tony on Dec 27, 2016 at 01:47 PM
Nampusa. Are you guys talking in English?
Napabili tuloy ako ng Kindle book: Vacuum Tube Amplifier Basics.
This is embarassing. I am a physicist but ignorant on vacuum tubes.
Medyo busy with work these next few days. Will reinstall my room treatments on Friday then listen to all sorts of music and different modes.
no need to get embarrassed, as a physicist, i am sure mamaniin mo lang ang mga maths about tube physics, a good thing so that no one is able to pull your leg....not even me.... >:D
you nay also want to read up on Morgan Jones' Valve amps....https://www.amazon.com/Valve-Amplifiers-Fourth-Morgan-Jones/dp/0080966403
Post by: Nelson de Leon on Dec 27, 2016 at 01:48 PM
Ok lang yan ding, ako nga license chemical engineer doing room treatments, kung ano talaga interests mo doon ka hahahaHaha! Tama! Important is you put your heart and mind into it. Be open to new ideas, scrutinize them, prove their efficiency or value. And best of all, learn to follow the preference of your client. Hehe!
Sent from my ASUS_Z012D using Tapatalk
Post by: balarila on Dec 27, 2016 at 01:57 PM
you nay also want to read up on Morgan Jones' Valve amps....https://www.amazon.com/Valve-Amplifiers-Fourth-Morgan-Jones/dp/0080966403
Saw that, too. Will try muna yung murang libro. :)
Post by: balarila on Dec 27, 2016 at 01:58 PM
Ding, audio live front-dead back : ht dead front - live back
Audio gusto mo wide soundstage, ht gusto mo pinpoint dialogues. Pero depende pa din sa preference ng listener. Kung na enjoy mo na sa room mo ok na, mapapansin mo difference once you put the treatment back in place
Thank you for appreciating my help :)
Now, that's a conundrum.
Dapat pala my sound absorption panels have a swivel: rockwool on one side and quadratic diffuser on the other.
I could also put a quadratic diffuser behind the screen so, when I listen to music, I will just retract the screen.
But those are big projects for now.
Post by: ndotcom on Dec 27, 2016 at 02:35 PM
http://tubelab.com/designs/tubelab-sse/
It is not for sale but could be heard, I am near Unciano Hospital. I will be back home 1st week of January.
I remember we exchanged pms before re woodworking.
Post by: JojoD818 on Dec 27, 2016 at 08:34 PM
you nay also want to read up on Morgan Jones' Valve amps....https://www.amazon.com/Valve-Amplifiers-Fourth-Morgan-Jones/dp/0080966403
I think I have one, gift ni Rony sa akin many moons ago. It's a very nice book with lots of modern approach to a rather old technology. Although it's something more applicable to would be tube builders rather than users.
Yun RCA Receiving Tube Manual diba may online copy? Yun na lang basahin mo Ding, kadali pa intindihin kahit baguhan.
Post by: JojoD818 on Dec 27, 2016 at 08:38 PM
Ok lang yan ding, ako nga license chemical engineer doing room treatments, kung ano talaga interests mo doon ka hahaha
Ganyan daw talaga ang mga engineers pare, hindi mapakali kung saan-saan nagsusuot hahaha ;D
Post by: geriboy on Dec 27, 2016 at 08:40 PM
I think I have one, gift ni Rony sa akin many moons ago. It's a very nice book with lots of modern approach to a rather old technology. Although it's something more applicable to would be tube builders rather than users.
Yun RCA Receiving Tube Manual diba may online copy? Yun na lang basahin mo Ding, kadali pa intindihin kahit baguhan.
eto ba iyon? http://www.tubebooks.org/tubedata/RC30.pdf
Post by: JojoD818 on Dec 27, 2016 at 08:41 PM
Nice :D triode mode, meaning single ended triode?good rin na upgraded na rin ang tubes ng unit
Triode mode doc pero push-pull pa din, hindi single ended triode. FYI. :)
Post by: JojoD818 on Dec 27, 2016 at 08:43 PM
eto ba iyon? http://www.tubebooks.org/tubedata/RC30.pdf
Yan nga Doc, basahin niyo na. Madami mapupulot na aral diyan.
Post by: geriboy on Dec 27, 2016 at 08:44 PM
Triode mode doc pero push-pull pa din, hindi single ended triode. FYI. :)
ok, thanks!
Post by: geriboy on Dec 27, 2016 at 08:45 PM
Yan nga Doc, basahin niyo na. Madami mapupulot na aral diyan.
sinimulan ko... nahilo ako... at least may kopya na ako. hehe. maraming salamat!
Post by: JojoD818 on Dec 27, 2016 at 08:46 PM
sinimulan ko... nahilo ako... at least may kopya na ako. hehe. maraming salamat!
pinaprint at bookbind ko pa nga ganyan ko. ;D
masarap basahin yan sa madaling araw habang nagkakape... ;)
Post by: balarila on Dec 27, 2016 at 09:04 PM
Sir ding I have a tubelab SSE power amp, it could accept kt88, el34, 6550 variants of tubes
http://tubelab.com/designs/tubelab-sse/
It is not for sale but could be heard, I am near Unciano Hospital. I will be back home 1st week of January.
I remember we exchanged pms before re woodworking.
Sige. Will contact you then. Malapit ka lang sa akin pala.
Post by: tony on Dec 28, 2016 at 07:14 AM
http://www.tubebooks.org/technical_books_online.htm
sinimulan ko... nahilo ako... at least may kopya na ako. hehe. maraming salamat!
Post by: tony on Dec 28, 2016 at 07:24 AM
Post by: balarila on Dec 28, 2016 at 11:20 PM
Sir Ding, I am glad you are enjoying the experience.
Please do try switching from ultralinear & triode mode to determine what type of AMP will suit your music preference.
The switch is on the left of the front panel.
Tried this briefly tonight. I seem to prefer Ultralinear than Triode. Tried it on vocals and large orchestra. Seems that, for me, mas makapal ang tunog ng ultralinear. Do I make sense?
I'm not an audiophile so can't really express what I hear in the correct words.
Post by: balarila on Dec 28, 2016 at 11:37 PM
The FH has a longer horn length than the ON, however the ON has a wider horn mouth than the FH. For the novice it is going to be a nightmare choosing which one. But personally, I'd vote for the Frugel build. Or, being a master woodworker, why not build both? Just teasing. ;D
Mind elaborating more about your preference?
I don't know which one to build and will probably have time to build only one so appreciate any info on which one I should choose. I also posted in the Speaker forum but not getting much activity there so far.
Frankly, I do not know what advantages there are on a longer horn nor on a wider mouth.
Post by: JojoD818 on Dec 28, 2016 at 11:57 PM
Mind elaborating more about your preference?
I don't know which one to build and will probably have time to build only one so appreciate any info on which one I should choose. I also posted in the Speaker forum but not getting much activity there so far.
Frankly, I do not know what advantages there are on a longer horn nor on a wider mouth.
The FH has a single, corner loaded, constant expansion horn while the ON has split, symmetrical chambers (I think they call it manifolds in the speaker community) that has an increasing size. On a builder's point of view, the ON is much harder to build, though this may not be the case for you (more woodwork=more exciting).
I vote for the FH because it is easier to fine tune with stuffing as it only has one horn mouth, you do this twice on an ON build plus it may prove to be impossible since the many chambers may not be accessible anymore.
Post by: balarila on Dec 29, 2016 at 05:51 AM
The FH has a single, corner loaded, constant expansion horn while the ON has split, symmetrical chambers (I think they call it manifolds in the speaker community) that has an increasing size. On a builder's point of view, the ON is much harder to build, though this may not be the case for you (more woodwork=more exciting).
I vote for the FH because it is easier to fine tune with stuffing as it only has one horn mouth, you do this twice on an ON build plus it may prove to be impossible since the many chambers may not be accessible anymore.
Thanks!
You're right. I'm a masochist when it comes to woodworking.
On the stuffing/finetuning, I guess I can leave the front panel unglued, just clamped, while I adjust the filling, gluing only when I'm sure it sounded good.
If I could construct both FH3 and ON properly, which one would you think have better bass (as I think the small drivers trickle off in low freqs)? Or bottom-line which one would produce better sound quality? I know this could be subjective but I appreciate even opinions. I could not find any comparisons of the two.
Post by: tony on Dec 29, 2016 at 06:58 AM
Tried this briefly tonight. I seem to prefer Ultralinear than Triode. Tried it on vocals and large orchestra. Seems that, for me, mas makapal ang tunog ng ultralinear. Do I make sense?
I'm not an audiophile so can't really express what I hear in the correct words.
of course you do....that is you....
i always tell people, i can explain the technical details but in the end
it is all up to you, i can not tell you how to enjoy your music...
let me try to give you an insight as to why you found ultralinear more
to your liking....for one it has more power and so can provide more spl...it has a local feedback to the screen grids that lowers plate resistance to make it mimic a triode.....
pentodes are much easier to drive than triodes,
voltage swing to a pentode grid is much smaller than for a triode...
so that when you switch from an ultraliner to a triode,
there is a shift in operating points, and it is not optimal
for a triode, surely it will work nevertheless...
a triode is a like a thevenin source, a pentode a norton source...
in the future, i hope you can get to listen to a pure pentode amp
and that will add another dimension to your experience...
Post by: ricky on Dec 29, 2016 at 06:59 AM
Try mo din audition kef ls50 , small footprint, also Qacoustic speakers(maganda na mura)
Post by: balarila on Dec 29, 2016 at 08:29 AM
If you are going to build your own speakers , lagyan mo na ng 8"-12" drivers sa side for that oooomph hahaha
Try mo din audition kef ls50 , small footprint, also Qacoustic speakers(maganda na mura)
Kulam alert!
Haaay, BI ka talaga, pare. ;D
Post by: balarila on Dec 29, 2016 at 08:33 AM
let me try to give you an insight as to why you found ultralinear more
to your liking....for one it has more power and so can provide more spl...it has a local feedback to the screen grids that lowers plate resistance to make it mimic a triode.....
pentodes are much easier to drive than triodes,
voltage swing to a pentode grid is much smaller than for a triode...
so that when you switch from an ultraliner to a triode,
there is a shift in operating points, and it is not optimal
for a triode, surely it will work nevertheless...
a triode is a like a thevenin source, a pentode a norton source...
in the future, i hope you can get to listen to a pure pentode amp
and that will add another dimension to your experience...
Thanks for explaining. I can understand voltage swings and grids. But thevenin and norton are alien to me. Or, perhaps this senile mind chose to forget it.
Will have to read up som more...
Post by: JojoD818 on Dec 29, 2016 at 12:24 PM
Thanks!
You're right. I'm a masochist when it comes to woodworking.
On the stuffing/finetuning, I guess I can leave the front panel unglued, just clamped, while I adjust the filling, gluing only when I'm sure it sounded good.
If I could construct both FH3 and ON properly, which one would you think have better bass (as I think the small drivers trickle off in low freqs)? Or bottom-line which one would produce better sound quality? I know this could be subjective but I appreciate even opinions. I could not find any comparisons of the two.
Aren't we all? ;D
Yes you may want to do that first while your tuning it to your liking. Take note though that overstuffing will actually decrease bass response due to coefficient of absorption and the fact that it does take valuable space, hence reduction in internal volume occurs.
I have always always always (many times over in this very forum) reminded builders not to rely on stuffing, the box should be spot on as is, the very first time, as close to what's published on paper or either the design is flawed or you did not do your homework properly.
Naku Ding, it's a compromise eh. Both will exhibit excellent bass response so long as it is within the bounds of confined space. The ON however will sound bigger IF you have a larger room, but unfortunately, a loose driver compliance due to the propagating chambers will/may unload the drivers at lower frequencies. The FH otoh will have a more controlled driver compliance (again because of the single, constant expansion horn) and will exhibit a more reinforced bass response even below the driver's free-air resonant frequency.
I hope I did not lose you in there. In simplest terms, the FH will have a smarter bass management than the ON for the same amount of acoustic energy, The latter will unload far earlier and rolloff the low frequency as a consequence.
Finally, as you have already said, this is a subjective matter. However, I have tried (my best) to be rather intuitive and based my opinions from personal experience. And yes, "nanorotot" din ako dati, wala na nga lang ako space ngayon kaya in the future na lang ulit ako mag horn speakers. :)
Post by: balarila on Dec 29, 2016 at 05:05 PM
Those too many bends in the ON could scrape off bass. I just like the looks of the ON much more than the FH3, though.
Perhaps I'll go for the FH3 then. A much simpler build.
BTW, my room is about 16' x 12'. Not sure if that's a factor.
Post by: JojoD818 on Dec 29, 2016 at 05:17 PM
I would suggest the FH too for the room size.
Post by: tony on Dec 29, 2016 at 07:36 PM
Thanks for explaining. I can understand voltage swings and grids. But thevenin and norton are alien to me. Or, perhaps this senile mind chose to forget it.
Will have to read up som more...
i never forget lesson learned in college, it makes it easier to grasps
the concepts.....medyo kinakalawang na rin sa math, but if you understand the principles behind it math follows naturally....
said another way, a norton is like a current source while thevenin is a voltage source....if you look at the tube datasheets for pentodes and
triodes this will be so easy to see if you want to learn it...
finally, the same tube like the EL34 will have different set of curves
for triode or pentode....
tubes are a joy to learn....
Post by: balarila on Dec 30, 2016 at 09:04 AM
Another factor to consider is time alignment, since the bulk of the lower frequencies will emanate from the horn mouth, this will be delayed more in the ON's maze-like chambers.
I would suggest the FH too for the room size.
Thanks, Jojo.
Using the distance of my planned speaker location to my listening position plus the distance sound would travel from back of driver to the mouth of the speaker and applying speed of sound (340m/s), sound from the horn mouth would be delayed by 0.02 seconds vs the ones from the front of the driver. Is that significant? I can only calculate but have no knowledge of how much the delay would affect listening experience.
Post by: balarila on Dec 30, 2016 at 09:23 AM
...but if you understand the principles behind it math follows naturally....
Completely agree. When I used to teach high school physics, I always made it a point to be more graphical and experiential than mathematical. If the kids can understand and visualize the mechanics and have some good math foundation, easier for them to grasp and apply.
Post by: tony on Dec 30, 2016 at 10:14 AM
Completely agree. When I used to teach high school physics, I always made it a point to be more graphical and experiential than mathematical. If the kids can understand and visualize the mechanics and have some good math foundation, easier for them to grasp and apply.
very true, in the facebook groups where i post, i tell
young kids, do not ask for formulas that you will soon forget,
ask instead the principles and the reasoning behind those,
if they do that, formulas will be very easy...
Post by: balarila on Dec 30, 2016 at 11:18 AM
Thanks, Jojo.
Using the distance of my planned speaker location to my listening position plus the distance sound would travel from back of driver to the mouth of the speaker and applying speed of sound (340m/s), sound from the horn mouth would be delayed by 0.02 seconds vs the ones from the front of the driver. Is that significant? I can only calculate but have no knowledge of how much the delay would affect listening experience.
Oops. Mali ang math. I should have calculated using only the delta between front and back paths. So baka 0.01 sec difference lang or less.
Post by: JojoD818 on Dec 30, 2016 at 03:19 PM
Thanks, Jojo.
Using the distance of my planned speaker location to my listening position plus the distance sound would travel from back of driver to the mouth of the speaker and applying speed of sound (340m/s), sound from the horn mouth would be delayed by 0.02 seconds vs the ones from the front of the driver. Is that significant? I can only calculate but have no knowledge of how much the delay would affect listening experience.
Oops. Mali ang math. I should have calculated using only the delta between front and back paths. So baka 0.01 sec difference lang or less.
The delay will exponentially increase because of the difference in frequency. But fwiw, it would not be something that we should worry about. Besides, these delay phenomenon is more pronounced in wide area auditoriums and theaters.
Post by: F. Dandy on Jan 20, 2017 at 10:48 AM
1. Class A (vacuum tube), Class AB and Class-D diy AMP music test (wala lang magawa during the 2016 christmas holiday)
https://youtu.be/hCYUxS_z36o (https://youtu.be/hCYUxS_z36o)
2. Class AB + Tube pre-amplifier (Hybrid)
https://youtu.be/8PaWhCTECzc (https://youtu.be/8PaWhCTECzc)
PS:
youtube video may not play correctly on your device/country due to copyrighted , well I hope youtube release the ban as we're just diyer's who used music to spice up our diy amplifiers, we love their music.
Post by: audiojunkie on Jan 20, 2017 at 05:34 PM
Post by: F. Dandy on Jan 25, 2017 at 03:58 PM
http://v.youku.com/v_show/id_XMjQ4NTA3OTA0MA==.html
2. Class AB + Tube pre-amplifier (Hybrid) ---------- should work well on youtube wala naman ban ito
youtube : https://youtu.be/8PaWhCTECzc
if not OK, see it here in Youku : http://v.youku.com/v_show/id_XMTgzMjU5MzA4MA==.html
@ TS,
you might like to have the 3 classes of Amp (Class A, AB and D, not sure you want the Class "H") in your critical listening pleasure, its more fun to have 3 (some).... the more the merrier.
Post by: balarila on Feb 03, 2017 at 06:08 PM
(https://photos.smugmug.com/Other/HiFi/i-XwShGsj/0/M/2017020317523126-IMG_1486-M.jpg)
It's an EL34 tube amp that Andrew Sevilla (AMX Audio) built for me.
yahoo!
Post by: geriboy on Feb 03, 2017 at 06:40 PM
Post by: geriboy on Feb 03, 2017 at 06:44 PM
https://www.facebook.com/groups/audiophilippines/permalink/1408850215843920/
Post by: parasound on Feb 03, 2017 at 07:19 PM
Sent from my iPhone using Tapatalk
Post by: Nelson de Leon on Feb 03, 2017 at 07:51 PM
Post by: balarila on Feb 04, 2017 at 06:37 AM
Post by: sealander on Feb 04, 2017 at 10:32 PM
(http://i.imgur.com/xqqTCmM.jpg)
(http://i.imgur.com/rvZ9p7I.jpg)
(http://i.imgur.com/vjvkRHK.jpg)
Now I know what I have been missing. It gave life to my speakers. Listening to music has never been the same.
Post by: parasound on Feb 04, 2017 at 10:45 PM
What speaker are you going to match with that amp?
Sent from my iPhone using Tapatalk
Post by: sealander on Feb 04, 2017 at 10:57 PM
Nice choice.. sweet sounding EL84
What speaker are you going to match with that amp?
Sent from my iPhone using Tapatalk
Andrew Jones Pioneer SP-52FS. Brought with me the speakers when I auditioned. At first I thought it would be hard to drive but amazingly the tube amp breathed life into it. Got the speakers last December so hindi pa masyado na break-in. The harmonics was so so good. Heard notes from familiar music I have not heard before. Even Sir Andrew was surprised. Rated at 18wpc which is enough for my small living room. Credit goes to you guys here in pdvd for introducing me to Sir Andrew.
Post by: parasound on Feb 04, 2017 at 11:27 PM
joke joke lang..Sent from my iPhone using Tapatalk
Post by: CoolTOYZPH on Feb 04, 2017 at 11:28 PM
Just got this picked up.
(https://photos.smugmug.com/Other/HiFi/i-XwShGsj/0/M/2017020317523126-IMG_1486-M.jpg)
It's an EL34 tube amp that Andrew Sevilla (AMX Audio) built for me.
yahoo!
Post by: sealander on Feb 05, 2017 at 12:12 AM
Congrats, enjoy your new set up.. reminder, hwag muna sasama sa mga group audition ng ibang member, specially yung mga naka fullrange & horn speaker set up
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Hahaha..I dare not...sipa na aabutin ko sa aking maybahay..
Post by: balarila on Feb 05, 2017 at 04:16 PM
Post by: at_sunset_blvd on Feb 05, 2017 at 07:56 PM
Just got this picked up.
(https://photos.smugmug.com/Other/HiFi/i-XwShGsj/0/M/2017020317523126-IMG_1486-M.jpg)
It's an EL34 tube amp that Andrew Sevilla (AMX Audio) built for me.
yahoo!
Nice one Brader!
Post by: balarila on Feb 06, 2017 at 05:43 AM
Not enough time to really it down and get transported to another dimension but I can see I'll get there.
But now I know what Ricky is telling me about the ills of using your home theater room as a listening room. Almost wanted to tear down my sound absorption panels and bass traps. Will have to figure something out.
Next project would be my FR speakers. Drivers still to arrive end of month so will probably use whatever free time to build the cabinet...and enjoy the music, of course.
Post by: ndotcom on Feb 06, 2017 at 07:00 AM
Congrats!
Post by: balarila on Feb 06, 2017 at 07:35 AM
Nice! Pakinggan na natin yan...
Congrats!
He-he. Not now. Not yet optimal. Still have to find time to tune the room and build the speakers.
Post by: sealander on Feb 06, 2017 at 08:41 AM
Just got to hear it. Sweet!
Not enough time to really it down and get transported to another dimension but I can see I'll get there.
But now I know what Ricky is telling me about the ills of using your home theater room as a listening room. Almost wanted to tear down my sound absorption panels and bass traps. Will have to figure something out.
Next project would be my FR speakers. Drivers still to arrive end of month so will probably use whatever free time to build the cabinet...and enjoy the music, of course.
Did we get the same tube amp? Mine is the Sonatina 5 PP EL84.
Post by: balarila on Feb 06, 2017 at 10:10 AM
Did we get the same tube amp? Mine is the Sonatina 5 PP EL84.
No. I did not look at the model of mine. But I have only 4 tubes, you have 7. In the middle of the chassis between pairs of tubes, there is a bias knob and dial.
Not sure what the sound quality and/or power difference are.
Post by: tony on Feb 06, 2017 at 10:27 AM
sealander's is most likely an st35 clone, this is to me the best sounding
amp from AMX.....my speakers are 90db's....ymmv....
Post by: karipas on Feb 06, 2017 at 12:13 PM
It's an EL34 tube amp that Andrew Sevilla (AMX Audio) built for me.
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Nice looking amp, congrats!
OT: I have a nice AMX Pre-amp that developed a hum when I plugeed the rca in my amp while it was powered , my tech and I can't figure out where it is coming from (we've replaced suspected caps and tubes to no avail). Can you PM me Sir Andrew Sevilla's email address or phone number?
I am hoping he can provide me a schematic of the unit. Maybe Sir Tony here can also give his inputs. Thanks in advance.
Post by: tony on Feb 06, 2017 at 12:29 PM
mang andrew is on facebook.....
Post by: sealander on Feb 06, 2017 at 01:55 PM
^most likely you got a single ended amp....just right for your fostex speaker....
sealander's is most likely an st35 clone, this is to me the best sounding
amp from AMX.....my speakers are 90db's....ymmv....
If I heard Mang Andrew right he said it was a Push pull EL84.
Post by: sealander on Feb 06, 2017 at 02:01 PM
It's an EL34 tube amp that Andrew Sevilla (AMX Audio) built for me.
Nice looking amp, congrats!
OT: I have a nice AMX Pre-amp that developed a hum when I plugeed the rca in my amp while it was powered , my tech and I can't figure out where it is coming from (we've replaced suspected caps and tubes to no avail). Can you PM me Sir Andrew Sevilla's email address or phone number?
I am hoping he can provide me a schematic of the unit. Maybe Sir Tony here can also give his inputs. Thanks in advance.
This happened to my amp when I connected the sub via the sub pre out. The rca cable were running on top of the speaker cables. So I rearrange the cables and the humming was gone.
Post by: tony on Feb 06, 2017 at 04:20 PM
If I heard Mang Andrew right he said it was a Push pull EL84.
looking at it, it is a pp amp, you made a good choice,
isn't your speaker 87db? i am eager to hear your experience with
you set up....
Post by: sealander on Feb 06, 2017 at 06:54 PM
looking at it, it is a pp amp, you made a good choice,
isn't your speaker 87db? i am eager to hear your experience with
you set up....
Yes my speakers are 87db. Bought my speakers last December so hindi pa masyado na break-in. Well for my ears it came alive so to speak. Better harmonics. High on the mids and very good bass specially when a subwoofer is in use. I heard notes from familiar music I've never heard before. Based on the reviews of the Andrew Jones SF-52FS most were saying that it lacked the needed bass. But lo and behold the bass was good enough for me. At first I was doubful that it could easily drive my speakers but My friend who accompanied me when I auditioned it and even Mang Andrew was surprised at the good harmonics and bass. I paired it with my circa 1999 Mordaunt Short two way floorstanders which is 90db and it sounded good too. I never knew what I was missing until now. Music never sounded so good.
Post by: at_sunset_blvd on Feb 06, 2017 at 08:22 PM
OT: I have a nice AMX Pre-amp that developed a hum when I plugeed the rca in my amp while it was powered , my tech and I can't figure out where it is coming from (we've replaced suspected caps and tubes to no avail). Can you PM me Sir Andrew Sevilla's email address or phone number?
I am hoping he can provide me a schematic of the unit. Maybe Sir Tony here can also give his inputs. Thanks in advance.
Maybe cable rearrangement lang or try changing RCAs.
This happened to my amp when I connected the sub via the sub pre out. The rca cable were running on top of the speaker cables. So I rearrange the cables and the humming was gone.
I also connected a REL Sub to my MINIMA before & it didnt sounded well so just used the SPEAK-ON Plug from REL & it work out find
Post by: karipas on Feb 07, 2017 at 01:06 AM
are the volume pots at zero when that happened?
mang andrew is on facebook.....
Hi Mang Tony, I believe it was not. It's case of over excitement, the AMX was my first tube. LOL
I just sent Andrew an email, I only had the amp for like 15 minutes (it was hand carried by my parents here in Canada) and have been collecting dust since then.
I can tell everyone that is a nice sounding pre-amp hence I hate just to throw it away.
Post by: karipas on Feb 07, 2017 at 01:17 AM
Hi Mang Tony, I believe it was not. I case of over excitement. LOL
I just sent Andrew an email, I only had the amp for like 15 minutes (it was hand carried by my parents here in Canada) and have been collecting dust since then.
I can tell everyone that is a nice sounding pre-amp hence I hate just to throw it away.
Maybe cable rearrangement lang or try changing RCAs.
I also connected a REL Sub to my MINIMA before & it didnt sounded well so just used the SPEAK-ON Plug from REL & it work out find
Hi Sunset, sorry no, I am positive one of the component was toast, there is a potted item that I am asking Andrew if he can sell me a piece or two. We have replaced the filter caps in the power supply and all tubes to no avail. My tech also checked for wrong polarity and there was none.
I do not mean to hijack the thread but thanks all for input, highly appreciated! I'll start a new thread for updates.
I am more of an SS guy BUT tubes can put that magic in vocals. I am assuming majority here are enthusiast so by all means I recommend people to consider tubes in their collection. I always like the hybrid setup. Tube pre and SS amp.
Post by: at_sunset_blvd on Feb 07, 2017 at 06:37 AM
I am more of an SS guy BUT tubes can put that magic in vocals. I am assuming majority here are enthusiast so by all means I recommend people to consider tubes in their collection. I always like the hybrid setup. Tube pre and SS amp.
Right-on!
Post by: tony on Feb 07, 2017 at 07:25 AM
Hi Mang Tony, I believe it was not. It's case of over excitement, the AMX was my first tube. LOL
I just sent Andrew an email, I only had the amp for like 15 minutes (it was hand carried by my parents here in Canada) and have been collecting dust since then.
I can tell everyone that is a nice sounding pre-amp hence I hate just to throw it away.
Andy, or s2kov is also settled in canada right now, if you can touch bases with him via pm here, maybe he can help you...