Author Topic: AMX Tube Products (Read 679660 times)

qguy · « **Reply #4710 on:** Nov 14, 2008 at 08:43 AM »

HI AMX,

Whats the difference between Sonatina having 2 smaller tubes and El34/6L6GC Minima having 3 smaller tubes

Can you PM the price of the SE KT88 - thanks

dindop · « **Reply #4711 on:** Nov 14, 2008 at 12:06 PM »

Quote from: AMXTube on Nov 13, 2008 at 09:57 PM

just bring over the NAD and we will try them. Hindi pa for sale kasi understudy pa if there is a demand. Kasi i want to be sure may demand for this product. And I want to find out how much people are willing to pay for a gizmo like this. It can take COAX or Optical input. It has two sets of output, one direct SS output and another via "tube converter."

Will it be ready for audition sometime December?

AMXTube · « **Reply #4712 on:** Nov 15, 2008 at 08:53 PM »

Quote from: dindop on Nov 14, 2008 at 12:06 PM

Will it be ready for audition sometime December?

Yes it is available today for auditioning.

AMXTube · « **Reply #4713 on:** Nov 15, 2008 at 08:58 PM »

Quote from: qguy on Nov 14, 2008 at 08:43 AM

HI AMX,

Whats the difference between Sonatina having 2 smaller tubes and El34/6L6GC Minima having 3 smaller tubes

Can you PM the price of the SE KT88 - thanks

Sonatina uses EL84, push pull 15 watts per channel and the El34/6L6GC Minima has twice the power of 30 watts per channel. The Minima 6L6GC has a newer version, Class A push pull auto Bias 3 tubes per channel also 30 watts per channel. This has excellent sonics a fast dynamics. Price is also very low for the kind of performance it delivers

AMXTube · « **Reply #4714 on:** Nov 15, 2008 at 09:03 PM »

This is the 6L^GC Minima. The design is minimalist in philosophy. Limited number of stages to preserve sonic purity.

squatt3r · « **Reply #4715 on:** Nov 15, 2008 at 11:05 PM »

sir andrew, are there plans for a 6C33C tube amp?

AMXTube · « **Reply #4716 on:** Nov 16, 2008 at 07:16 PM »

Quote from: squatt3r on Nov 15, 2008 at 11:05 PM

sir andrew, are there plans for a 6C33C tube amp?

How did you know? I was keeping this under wraps,. I just got the tubes and sockets and currently designing the transformers. I will keep you posted. It is a hot tube!

squatt3r · « **Reply #4717 on:** Nov 16, 2008 at 08:31 PM »

Quote from: AMXTube on Nov 16, 2008 at 07:16 PM

How did you know? I was keeping this under wraps,.

just a wild guess sir

muypogi · « **Reply #4718 on:** Nov 17, 2008 at 02:17 PM »

Quote from: AMXTube on Nov 16, 2008 at 07:16 PM

How did you know? I was keeping this under wraps,. I just got the tubes and sockets and currently designing the transformers. I will keep you posted. It is a hot tube!

Sana high output din tulad nung LAMM amp na nasa hi-fi show. . . para kaya all types of music. The LAMM I think goes to at least 90wpc in PP configuration.

http://www.lammindustries.com/PRODUCTS/Ml11descr.html

Or this 18wpc Almarro amp. . with tube cage and remote control. . .and more power. . .

AMXTube · « **Reply #4719 on:** Nov 17, 2008 at 11:30 PM »

Quote from: muypogi on Nov 17, 2008 at 02:17 PM

Sana high output din tulad nung LAMM amp na nasa hi-fi show. . . para kaya all types of music. The LAMM I think goes to at least 90wpc in PP configuration.

http://www.lammindustries.com/PRODUCTS/Ml11descr.html

Or this 18wpc Almarro amp. . with tube cage and remote control. . .and more power. . .

True power output of SE 6C33CB is only 15 watts rms per channel, and push pull is about 50 watts per channel only.

qguy · « **Reply #4720 on:** Nov 19, 2008 at 05:48 AM »

thanks , I was curious at the pre-amp section. from what I understand tubes amps requires a driver tube and the pre-amp also requires a small tube. In some of your designs like the Sonatina, I see only a pair of small tubes..are these for the pre-amp section ?

Quote from: AMXTube on Nov 15, 2008 at 08:58 PM

Sonatina uses EL84, push pull 15 watts per channel and the El34/6L6GC Minima has twice the power of 30 watts per channel. The Minima 6L6GC has a newer version, Class A push pull auto Bias 3 tubes per channel also 30 watts per channel. This has excellent sonics a fast dynamics. Price is also very low for the kind of performance it delivers

AMXTube · « **Reply #4721 on:** Nov 19, 2008 at 06:14 PM »

Quote from: qguy on Nov 19, 2008 at 05:48 AM

thanks , I was curious at the pre-amp section. from what I understand tubes amps requires a driver tube and the pre-amp also requires a small tube. In some of your designs like the Sonatina, I see only a pair of small tubes..are these for the pre-amp section ?

It will depend on the circuit design. Some use high gain tubes and minimum or no negative feed back. When such design is used a CD player with output level between 500milli volts to 2000 milli volts will be more than enough to drive the amp to full power output. Such is the case with EL84. Now some amps that use low gain tubes and hard to drive power triodes will almost always need a preamp.

praktikal · « **Reply #4722 on:** Nov 19, 2008 at 06:19 PM »

sent you a PM sir Andrew.

just called your shop umalis na daw po kayo.

salamat po.

bz · « **Reply #4723 on:** Nov 19, 2008 at 11:13 PM »

I brought my NAD and tried your DAC using RCA. Everything seems to bloom not in a distorted way but the instrument became more obvious. Nice job!!!

praktikal · « **Reply #4724 on:** Nov 20, 2008 at 06:07 PM »

Quote from: AMXTube on Nov 08, 2008 at 12:15 AM

This 4 watt/ch baby amp can really rock. It can drive the Jlab Focal Cobalt with deep bass and crisp highs.Audition this amp>

sa wakas nakabisita din sa Kinetic!

I'd call this baby -- Cariñosa

looking forward to have this in our bedroom, sana soon.

Sir Andrew thanks.

-noli

praktikal · « **Reply #4725 on:** Nov 20, 2008 at 06:32 PM »

ano say nyo Sir? sori po, medyo napagtripan ko lang

AMXTube · « **Reply #4726 on:** Nov 20, 2008 at 10:53 PM »

Quote from: praktikal on Nov 20, 2008 at 06:32 PM

ano say nyo Sir? sori po, medyo napagtripan ko lang

Ok ha! There is an old kundiman song titled "Carinyosa"

AMXTube · « **Reply #4727 on:** Nov 22, 2008 at 12:07 AM »

The classic EL34 revisited, gutsy and dynamic, a true Class A rocker, Auto Bias, pure dynamics...

Superman · « **Reply #4728 on:** Nov 22, 2008 at 12:08 AM »

Congratulations Sir Andrew!

joepaps · « **Reply #4729 on:** Nov 22, 2008 at 08:33 AM »

Quote from: AMXTube on Nov 22, 2008 at 12:07 AM

The classic EL34 revisited, gutsy and dynamic, a true Class A rocker, Auto Bias, pure dynamics...

wow naman!! bakit ngayun ka lang.

BigBert-2 · « **Reply #4730 on:** Nov 22, 2008 at 09:21 AM »

Wow! Congrats Sir Andrew.

AMXTube · « **Reply #4731 on:** Nov 22, 2008 at 10:59 PM »

Quote from: BigBert-2 on Nov 22, 2008 at 09:21 AM

Wow! Congrats Sir Andrew.

Thanks, and this amp when fast. But we can still take orders.

AMXTube · « **Reply #4732 on:** Nov 22, 2008 at 11:30 PM »

Quote from: Superman on Nov 22, 2008 at 12:08 AM

Congratulations Sir Andrew!

Thank you, muzta na kayo sir?

AMXTube · « **Reply #4733 on:** Nov 22, 2008 at 11:32 PM »

For those who want SE power here is one. 211 or 845 Monoblock

Superman · « **Reply #4734 on:** Nov 23, 2008 at 12:20 AM »

Quote from: AMXTube on Nov 22, 2008 at 11:30 PM

Thank you, muzta na kayo sir?

Di pa ako nakabisita sa Pioneer...I'll make sure to visit you one of these days...Regards!...Gusto ko yung mala-LAMM power amp ha, sir...usap tayo, hehe!

AMXTube · « **Reply #4735 on:** Nov 24, 2008 at 08:06 PM »

Quote from: Superman on Nov 23, 2008 at 12:20 AM

Di pa ako nakabisita sa Pioneer...I'll make sure to visit you one of these days...Regards!...Gusto ko yung mala-LAMM power amp ha, sir...usap tayo, hehe!

The 6C33C Se amp is under construction 15 watts nominal and 18 watts if you want to squeeze out the tube. I will post this here forst. The 211 mono block left for the US today, but we can build on orders.

Superman · « **Reply #4736 on:** Nov 24, 2008 at 08:35 PM »

That's great...however, my speakers have similar specs to Sonus Fabers, rated around 89db at 4ohms...

squatt3r · « **Reply #4737 on:** Nov 24, 2008 at 09:43 PM »

sir andrew magkakaroon ba kayo ng 6C33C on a PP config?

Superman · « **Reply #4738 on:** Nov 25, 2008 at 01:26 AM »

Same here...maybe a 90-watter would do the trick...similar to the BAT VK-75SE, using 4 x devil tubes, 6 x 6SL7 octals, 2 x 6V6 and 2 x 6H30, Thanks!

AMXTube · « **Reply #4739 on:** Nov 25, 2008 at 11:46 PM »

Quote from: squatt3r on Nov 24, 2008 at 09:43 PM

sir andrew magkakaroon ba kayo ng 6C33C on a PP config?

Design simulations on my software gives about 50 watts output RMS. The thing is, it has very low output impedance unlike other tubes. this gives it a lot of drive to overcome loudspeaker reactances. Have you heard of SV572-3 power triodes? A pair of that tube in push pull config can deliver over 100 watts RMS. Maybe that is what is more apt to this low efficiency speakers. SV572 triodes are made Svetlana WInged C and much touted by Eric Barbour. But remember that all low efficiency loudspeakers suffer from power compression. The more power you drive it with, the hotter the voice coil gets, ergo increase in impedance follows, then lower current into the voice coil which translates to lower power to the loudspeaker thus weaker output. FYI