Author Topic: Surplus amps (Read 997287 times)

H a n $ · « **Reply #270 on:** Nov 14, 2003 at 10:56 AM »

J_albert,

Balita sir have you purchase the tomato???..

este amp pala..hehehehe

john5479 · « **Reply #271 on:** Nov 14, 2003 at 10:58 AM »

Quote from: iceman90a on Nov 13, 2003 at 05:23 PM

i can honestly recommend you to not do this, save your money... i've tried this already

the digital decoder of the kebao is very harsh a 2nd hand entry level receiver will still sound much better

and the output stages are not that good, plus the digital volume control for these players are not that good. When i had a five channel amp i connected it directly to the preouts of my daiwa dvd player and used its volume control, not that good

even though you have a good amp if your source is not that good...don't expect miracles

iceman90a · « **Reply #272 on:** Nov 14, 2003 at 11:42 AM »

hmmm... maybe this means that those cheap 5.1 through analog surround set-ups can sound better, and that it is the dvd player's fault?

ma try nga mamaya cd player ko sa aking electone 2.1 speakers

j_albert22 · « **Reply #273 on:** Nov 14, 2003 at 11:59 AM »

Quote from: Hans Adriane on Nov 14, 2003 at 10:56 AM

J_albert,

Balita sir have you purchase the tomato???..

este amp pala..hehehehe

di pa scouting muna uli dami pa naman dyan e

akyatbundok · « **Reply #274 on:** Nov 14, 2003 at 12:58 PM »

Quote from: j_albert22 on Nov 14, 2003 at 11:59 AM

di pa scouting muna uli dami pa naman dyan e

na-test niyo ba? kung may time samahan ko kayo punta tayo sa pier tingin lang... pumupunta ako dun every 3 weeks tingin tingin lang in case meron makitang ginto... pero kadalasan uwi lang ako walang bitbit dahil karamihan ng nandun kalabasa hinde ginto. meron ako isang suspect na ginto pero balat bayabas kaya pinagiisipan ko pa hehe.

sebman · « **Reply #275 on:** Nov 14, 2003 at 02:00 PM »

Quote from: akyatbundok on Nov 14, 2003 at 12:58 PM

na-test niyo ba? kung may time samahan ko kayo punta tayo sa pier tingin lang... pumupunta ako dun every 3 weeks tingin tingin lang in case meron makitang ginto... pero kadalasan uwi lang ako walang bitbit dahil karamihan ng nandun kalabasa hinde ginto. meron ako isang suspect na ginto pero balat bayabas kaya pinagiisipan ko pa hehe.

cge boss akyat... sama ako dyan.. field trip tayo sa pier., kaw tourist guide namin...

james16 · « **Reply #276 on:** Nov 14, 2003 at 02:17 PM »

Quote from: akyatbundok on Nov 14, 2003 at 12:58 PM

na-test niyo ba? kung may time samahan ko kayo punta tayo sa pier tingin lang... pumupunta ako dun every 3 weeks tingin tingin lang in case meron makitang ginto... pero kadalasan uwi lang ako walang bitbit dahil karamihan ng nandun kalabasa hinde ginto. meron ako isang suspect na ginto pero balat bayabas kaya pinagiisipan ko pa hehe.

pwede rin ba makasama jan?

ArnieSwarzie · « **Reply #277 on:** Nov 14, 2003 at 03:19 PM »

Quote from: john5479 on Nov 14, 2003 at 10:58 AM

and the output stages are not that good, plus the digital volume control for these players are not that good. When i had a five channel amp i connected it directly to the preouts of my daiwa dvd player and used its volume control, not that good even though you have a good amp if your source is not that good...don't expect miracles

JOhn,

I am sorry, I can not follow on the description above.

I have a Kebao connected to a surplus amplifier - Yamaha AVR1000. I have a specification of the amplifier somehow, and I noted the sensitivity it needs is much smaller than Kebao output. So I have to somehow lower the output from my kebao DVD. I have a very good and clean sound. Before I bought this surplus amp, I really checked that everything looks and sound alright.

The volume control of Kebao and Nextbase is digital - and as such, it has no output stage (analog stage) which makes up the volume control. The RCA out of these DVDs are not pre-out - it is still the line out at around 40K+ impedance. Connecting this to MAIN input of an amp will really yield a bad sound because it is not enough to feed the power amplifier.

Going back to DVD volume control, I tested this is digital - not analog stage. Connect an AVR to the DVD via optical, play a CD (this will be PCM-2 channel), make volume change on your DVD, your AVR will be able to decode the digital signal as lowering the volume.

Another test I made, if my memory does not fail me, is to test DD and DTS signal via optical connection - reduce volume on the DVD - the AVR will decode this as lowering of volume. I have to re-confirm this tomorrow after I test it tonight.

Based on this experimentation, I think what I posted can still be done with good sound - but it might just be me - but listening to it will still be your final judgment though.

john5479 · « **Reply #278 on:** Nov 14, 2003 at 03:35 PM »

I am perfectly aware that the volume control of the dvd player is digital, not analog. still the digital sound info will still be converted to analog through the dacs of the dvd player, which then goes out to the analog outs.

With that being said, when i tried to use the digital volume control of the dvd player the volume increase can be from very faint to loud and i found the sound coming from the analog outs of the dvd player too harsh for my liking.

Its all about preferences, i even tried using just one integrated amplifier and downmixed the channels to stereo, so the digital volume control will not be my volume control but instead control it through the integrated amp....still harsh for my liking. If it sounds ok to you then by all means enjoy your setup

cire2003 · « **Reply #279 on:** Nov 14, 2003 at 05:23 PM »

Mga bro,

May surplus bang amp sa pier na dts na?

Thanks. Please pa-post naman and kung magkano.

Maraming salamat.

iceman90a · « **Reply #280 on:** Nov 14, 2003 at 06:24 PM »

Quote from: ArnieSwarzie on Nov 14, 2003 at 03:19 PM

Another test I made, if my memory does not fail me, is to test DD and DTS signal via optical connection - reduce volume on the DVD - the AVR will decode this as lowering of volume. I have to re-confirm this tomorrow after I test it tonight.

when i did this, lowering the volume on my kebao remote does not lower the volume when connected to my avr via digital connections

the kebao 3089 can only send out either analog (via 5.1 rca) or digital (optical or co-ax). selecting either of the two disables the other...

Superman · « **Reply #281 on:** Nov 14, 2003 at 06:40 PM »

Quote from: iceman90a on Nov 14, 2003 at 06:24 PM

when i did this, lowering the volume on my kebao remote does not lower the volume when connected to my avr via digital connections

the kebao 3089 can only send out either analog (via 5.1 rca) or digital (optical or co-ax). selecting either of the two disables the other...

dre,

sent you a pm...thanks!

jerix · « **Reply #282 on:** Nov 20, 2003 at 10:44 AM »

the other day i happened to pass by a shop here in Lagro, QC selling 2nd hand and several brand new korean TVs, vcds and some amps with speakers.

i tested one of the 2nd hand amp for sale--- its a 50 w x 2 DAEWOO and the name of the speakers hooked is lofte... its 70 w each--idont know these brands but it sounded very pleasant to my ears, lalong-lalo na ung speakers, ok at very clear and mids at sa highs nya at ang lakas sin ng bass nya--and it costs only P2500 for the whole set of amp and speakers. Got no money at that time so went back nlang yesterday, pero sayang nakuha na pag-alis ko that day -- :'(

sinabi ko sa manager ihanap ulit ako ng same combination, sana i will happen to see a pair of these again..

av_phile · « **Reply #283 on:** Nov 20, 2003 at 12:30 PM »

Quote from: ArnieSwarzie on Nov 14, 2003 at 03:19 PM

JOhn,

I am sorry, I can not follow on the description above.

I have a Kebao connected to a surplus amplifier - Yamaha AVR1000. I have a specification of the amplifier somehow, and I noted the sensitivity it needs is much smaller than Kebao output. So I have to somehow lower the output from my kebao DVD. I have a very good and clean sound. Before I bought this surplus amp, I really checked that everything looks and sound alright.

The volume control of Kebao and Nextbase is digital - and as such, it has no output stage (analog stage) which makes up the volume control. The RCA out of these DVDs are not pre-out - it is still the line out at around 40K+ impedance. Connecting this to MAIN input of an amp will really yield a bad sound because it is not enough to feed the power amplifier.

Going back to DVD volume control, I tested this is digital - not analog stage. Connect an AVR to the DVD via optical, play a CD (this will be PCM-2 channel), make volume change on your DVD, your AVR will be able to decode the digital signal as lowering the volume.

Another test I made, if my memory does not fail me, is to test DD and DTS signal via optical connection - reduce volume on the DVD - the AVR will decode this as lowering of volume. I have to re-confirm this tomorrow after I test it tonight.

Based on this experimentation, I think what I posted can still be done with good sound - but it might just be me - but listening to it will still be your final judgment though.

Hmm, let me try that again,

I recall trying to control the volume setting of my DVD player via its on screen menu and nothing happened to the volume. My dvd player is connected via its optical digital out.

edboy7 · « **Reply #284 on:** Nov 20, 2003 at 04:05 PM »

hmmmm

.... i think if ur gonna use the optical or coaxial outputs of your dvd...it wont affect the volume...kasi it only works kung rca out or analog out mo kunin.....

av_phile · « **Reply #285 on:** Nov 21, 2003 at 01:15 PM »

Quote from: edboy7 on Nov 20, 2003 at 04:05 PM

hmmmm .... i think if ur gonna use the optical or coaxial outputs of your dvd...it wont affect the volume...kasi it only works kung rca out or analog out mo kunin.....

Confirmed

ArnieSwarzie · « **Reply #286 on:** Nov 21, 2003 at 06:40 PM »

I have not retested it on a Kebao because my unit is still out with somebody.

With Nextbase, the setting should be as follows:
under spdif setting, choose spdif/pcm

with avr connected via optical or coaxial digital, make changes in DVD volume and the AVR will make a corresponding volume change. this mode is PCM in the AVR - digital format - not via the analog out of the DVD.

Also, you can make equalizer changes by selecting pre-set equalization, and also you can have bass boost (2 types) whichever you like.

For the analog outs, the digital implementation is also kinda clean. The DD analog out can be altered by your chosen equalization, and bass boost mode. I think all 5 channels will be altered - and I think digitally as well.

For the Kebao, I will have my unit tonight so I can give you the config for you to test the feature in digital format I mean.

ArnieSwarzie · « **Reply #287 on:** Nov 22, 2003 at 09:54 AM »

In Kebao, the AUDIO output should have setting to SPDIF PCM. This is similar to Nextbase. Setting to SPDIF/RAW means you want your AVR to select which coded material to play (DD, DTS, PCM).

For Kebao, with only optical connection to AVR, you can change volume, alter equalization by using preset, or make your own equalization. It has no bass boost like Nextbase - but you can do this via equalization. And this is in PCM implementation - fully digital - not analog - which your AVR can decode.

I have not tested the analog output - but remember tried it before, the equalization is effected on each channel even in DD/DTS decoding. Will feedback if I will be able to do this tonite.

akyatbundok · « **Reply #288 on:** Nov 24, 2003 at 10:47 AM »

i was at the pier yesterday... saw the 1st multi-ch power amp i've seen at the pier. the brand/model is NEC AVA-606 -- its a 6-ch power amp with total power consumption of 210W. i guess that makes it rather low-powered per channel, maybe about 35W/ch. but all channels can be bridged so it can be configured for 3ch, 4ch, 5ch and 6ch. i suppose in 3ch mode the power rating would be around 70W/ch. the casing is aluminum with some very visible scratches in the front panel.

one possible application is bi-amping with 4 channels. use one 35W channel for the tweeter, then bridge two channels for 70W for the woofer.

or maybe a cheapo setup as described in the previous posts? i wouldn't know... me, i want my junk to be high-end. seemed kinda expensive for me at the asking price of 5k.

akyatbundok · « **Reply #289 on:** Dec 08, 2003 at 06:39 PM »

latest sighting... sansui AU-alpha607KX

- 2 gold-plated RCA power amp inputs !!
- amp selector: power amp direct 1, 2 or integrated amp
- 12th generation '92 model
- black glossy finish ala HK
- where: surplus store near farmers market fish section
- asking price 5k

... but watch out they're sneaky it changes to 7.5k if you show too much interest

Philander · « **Reply #290 on:** Dec 11, 2003 at 05:26 PM »

Any inputs on the following surplus amps:

Sony TA-FA5es

Marantz PM-54D
Marantz PM-64D

Nakita ko sa pier, ganda ng looks.

Thanks.

iceman90a · « **Reply #291 on:** Dec 11, 2003 at 05:28 PM »

Quote from: akyatbundok on Dec 08, 2003 at 06:39 PM

latest sighting... sansui AU-alpha607KX

- 2 gold-plated RCA power amp inputs !!
- amp selector: power amp direct 1, 2 or integrated amp
- 12th generation '92 model
- black glossy finish ala HK
- where: surplus store near farmers market fish section
- asking price 5k

... but watch out they're sneaky it changes to 7.5k if you show too much interest

pre san nakita yan? sa bahay mo na naman?

akyatbundok · « **Reply #292 on:** Dec 11, 2003 at 05:35 PM »

Quote from: iceman90a on Dec 11, 2003 at 05:28 PM

pre san nakita yan? sa bahay mo na naman?

muntik na hehe... di ko sure kung nandun pa sa cubao, actually si narayan nagturo sakin. mas bago 'to sa sansui ko by 6 years pero higher wattage sakin. nirecommend ko sa fren ko pero namahalan siya, pwede kasi 'to gamitin as power amp.

kita mo yung 4 gold-pated RCA jacks? may inputs siya for 2 external preamps. switchable sa harap: power amp direct 1... 2.... or integrated.

[slayer] · « **Reply #293 on:** Dec 11, 2003 at 05:59 PM »

akyat,

Champion yan!!

akyatbundok · « **Reply #294 on:** Dec 12, 2003 at 04:47 PM »

Quote from: Philander on Dec 11, 2003 at 05:26 PM

Any inputs on the following surplus amps:

Sony TA-FA5es

Marantz PM-54D
Marantz PM-64D

Nakita ko sa pier, ganda ng looks.

Thanks.

philander, ganito ba yung nakita mong sony? naykupo, bago pa yata to ah. unahan na kita hehe.

Philander · « **Reply #295 on:** Dec 12, 2003 at 05:21 PM »

Quote from: akyatbundok on Dec 12, 2003 at 04:47 PM

philander, ganito ba yung nakita mong sony? naykupo, bago pa yata to ah. unahan na kita hehe.

Yup, yan po iyon.... sabihin mo lang na maganda, baka maisipan hehehhheh... anyway its worth Php 5.5K.

akyatbundok · « **Reply #296 on:** Dec 14, 2003 at 02:57 PM »

Quote from: Philander on Dec 12, 2003 at 05:21 PM

Yup, yan po iyon.... sabihin mo lang na maganda, baka maisipan hehehhheh... anyway its worth Php 5.5K.

philander, binili mo na ba? hehe... kung ayaw mo kunin ako na kukuha... pa-pm naman kung saan nakatago... thanks pre!

[slayer] · « **Reply #297 on:** Dec 15, 2003 at 01:50 PM »

Nakow! Newest addition to the family ng amps ni Aykat pag nagkataon...

akyatbundok · « **Reply #298 on:** Dec 15, 2003 at 03:01 PM »

Quote from: [slayer] on Dec 15, 2003 at 01:50 PM

Nakow! Newest addition to the family ng amps ni Aykat pag nagkataon...

di ko nakita pre, kaya iba nauwi ko... pina-replace ko yung CD player na nabili ko last month ng kenwood surplus speaker. medyo di pa ka-level ito nung yamaha ns1000 or diatone mini-ref speakers pero for the price ok na rin.

first impression... bright... unnatural vocals... needs tone controls or equalizer to correct the timbre. though it has nice tight bass, it doesn't go very loud. push the volume and the cabinet resonates. but once the treble is toned down and the midbass turned up slightly, it gets closer to the right timbre. after listening to it all night, i found it likes R&B and disco. in the morning, i played it again and realized that it actually sounds pretty good on vocals too. very detailed and lively. then i listened to my b&w again and whoa... now the b&w started to sound dull. i realize now that ears are like eyes - if you stay in the dark too long a mild ray of light becomes too bright. but after a while the eyes forget the old environment and adjust to the new environment and now it becomes the new "standard". that's the same with our ears, i think. when i switched from AE to MS speakers i though MS was bright and AE was laid back. then i got a B&W and now i think MS is laid back, B&W is bright. then i got a surplus speaker and now i think the surplus is bright and B&W is laid back. going back to adjust my ears to B&W and MS, i think the brits have got the voice right. then again, how would i know if i haven't heard the singer in person? haaay basta maganda tumunog sa tenga oks na rin.

[slayer] · « **Reply #299 on:** Dec 15, 2003 at 03:05 PM »

Nice!! Looks fresh.