WANTED Sanken S-40W amplifier module - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 20th April 2012, 01:27 PM   #1
diyAudio Member
 
Join Date: Jun 2009
Default WANTED Sanken S-40W amplifier module

Hey folks, it would appear that I am not the first to ask this question, but opened a new thread anyway to that I get current info. I need a Sanken S-40W amplifier module, for an old JVC amp. I ordered one from China but it arrived faulty, with a short circuit much the same as the old one it replaced, and that was the last one they had in stock.
Does anyone here by chance have one that they would be willing to sell or know where I can find one? Any help is appreciated, as always
  Reply With Quote
Old 20th April 2012, 01:35 PM   #2
diyAudio Member
 
Join Date: Nov 2008
A part # would be helpfull! E
  Reply With Quote
Old 20th April 2012, 02:09 PM   #3
Banned
 
Join Date: Jan 2005
These modules have not been manufactured for years, so if you find one, its 99.9% guranteed to be counterfeit, especially if its on ebay.

Its likely very similar to the STK series of amp modules.

Because these modules are so hard to come by, it may be a better option to rebuild the amp with something like a dx amp, or an apex amp, or an aksa amp or something, reusing the chassi, heatsink and power transformer.
  Reply With Quote
Old 20th April 2012, 02:29 PM   #4
diyAudio Member
 
Join Date: Nov 2008
NTE carries the STK series and I have a bunch left from my old service shop
Tekko: Bummer about the hdd. Good luck on that! E
  Reply With Quote
Old 20th April 2012, 02:42 PM   #5
diyAudio Member
 
Join Date: Apr 2010
Location: Coffs Harbour
SUGGESTION: If you are given an amplifier for any purpose, look inside. If you see modules, you drop it quickly and run, before it requires you to spend more time and money than anyone will pay you for it. The older it is, the more expensive and difficult to deal with.
Your first buying experience and a widely held view that such amps are cheap crap should tell you that anyway.
__________________
regards
  Reply With Quote
Old 20th April 2012, 03:21 PM   #6
diyAudio Member
 
Join Date: Jun 2009
@Ian: I understand your suggestion, however I bought this amplifier as faulty because it was cheap. Prior to purchasing, I downloaded the service manual and got the part number of the module, and located one from china for $15 US, so I bought it knowing I could obtain the parts at a good price. When the replacement part arrived it was a genuine Sanken item, but it was second hand and faulty, so now finding another one is the difficult part because they only had one. I have ordered other parts from the same website, and never had any problems.

And @ mickeymoose, S-40W is the part number.

If I can't find one, I will likely use the existing heatsink and transformer etc and go down the STK route. The amp was spec'd at 40W/channel, and the rails are + and - 32V. Can anyone suggest a good STK chip (2 channel preferred but two mono amps okay) thats cheap and readily available?
  Reply With Quote
Old 20th April 2012, 03:34 PM   #7
Banned
 
Join Date: Jan 2005
Don't waste time using the stk modules, they are also obsolete and hard to get.

Whats available for sale today is most likely counterfeit modules. I believe poduction of the stk modules was shut down as early as the mid 90's if not even in the late 80's.

The best option is to drop the modules and instead build a well known discrete design with modern parts.
  Reply With Quote
Old 20th April 2012, 03:53 PM   #8
diyAudio Member
 
Join Date: Nov 2008
Go to Pacific Semiconductors Inc.- Worldwide Distributor-Import-Export they have 100s of the STK modules in stock. E
  Reply With Quote
Old 20th April 2012, 07:04 PM   #9
diyAudio Member
 
Join Date: Apr 2010
Location: Coffs Harbour
Quote:
Originally Posted by flyingtele View Post
....I bought it knowing I could obtain the parts at a good price. When the replacement part arrived it was a genuine Sanken item, but it was second hand and faulty, so now finding another one is the difficult part because they only had one...
Yes, that is precisely my experience of attempting repairs to hyrid module based amplifiers. I have wrestled with this problem of unobtanium, bad sources and obsolete critical components for many years, even with the wiser heads and purchasing power of local technicians.

The part price is not usually an issue but there are the interminable searches. freight charges and sifting of genuine parts from substitutes that aren't, due to pinouts and issues that require unpublished work-arounds, etc, and so on. I think collectively, from around 2000, we had about 25% success finding and substituting obsolete audio modules. To add insult, they sounded disappointing, even with restoration work. That was not just my opinion, clients would say so, as they hadn't realised the changes in audio since the 70s or 80s.

If you value the case, preamp and power supply, a positive approach for little cash is to scrap the amplifier section and fit standard 40W LM3886 chip-amp modules from Flea-bay or your favourite high-price electronics store. These sound great and do much more than hybrids without needing external protection. A pretty easy fit with small Chinese boards, I would think.

If you are also confident with finding and wiring the necessary signal, output and power/earth/signal earth leads, you could have quite a good DIY result .
Check Rod Elliott's ESP site for a good rap, run-down and another PCB source for these. Elliott Sound Products - The Audio Pages (Main Index)
__________________
regards
  Reply With Quote
Old 20th April 2012, 09:26 PM   #10
diyAudio Member
 
Join Date: Nov 2008
Location: Oakmont PA
Buy SP-40W, SP-40W, S-40W, SP-40W S-40W S40W ZIP best price and short lead time...Sanken USED PARS. at Aliexpress.com
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Looking for Sanken S-40W flambart Chip Amps 2 17th September 2011 02:29 PM
snaken s-40w or sp-40w for pioneer sx-650 bolameon Swap Meet 1 3rd June 2011 07:07 PM
Sanken SI-1030G, 30W hybrid amplifier module limono Swap Meet 2 2nd November 2010 03:07 AM
40W class A push pull amp with JJ 2A3-40w possible? 3nity Tubes / Valves 18 26th May 2010 11:05 PM
Sanken S-40w Jorgitox Swap Meet 4 13th February 2009 10:00 AM


New To Site? Need Help?

All times are GMT. The time now is 02:56 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2