Aging Pioneer SA-9500 II

harley · 22nd December 2011, 03:05 AM

As the title suggests, I have one of these amps that I have enjoyed over the past 15 years that I found by a dumpster. I reconditioned the unit when I was 16 by replacing the volume control, tape monitor switch, and power supply electrolytics myself for about $100. Now though other switches are becoming problematic, particularly the function switch and the ALPS volume control I replaced.

I was wondering if anyone has tried replacing these old function switches with relays or something a bit more modern. How about binding posts for the speakers instead of the awful push terminals? I'm just trying to keep this amp going since it has a nice layout (two power supplies and output stages) and really meets my needs. I thought about getting another preamp and bypassing the onboard, but that is costly.

Any input/thoughts are appreciated.
-harley

ohio buck · 25th December 2011, 08:52 PM

I bought one of those amps new in 79. Still have it and use it almost every day. I had to replace a filter cap in it several years ago but that has been the only issue I had. The owners manual had a very complete and accurate schematic included also. Anyway, you can try this link, you might find someone reasonably close.
Stereo, Audio-Video Repair-Restoration Resources - Used and Vintage

Best of luck to you.

22nd December 2011, 03:05 AM	#1
harley diyAudio Member Join Date: May 2009 Location: Oak Ridge, TN	Aging Pioneer SA-9500 II As the title suggests, I have one of these amps that I have enjoyed over the past 15 years that I found by a dumpster. I reconditioned the unit when I was 16 by replacing the volume control, tape monitor switch, and power supply electrolytics myself for about $100. Now though other switches are becoming problematic, particularly the function switch and the ALPS volume control I replaced. I was wondering if anyone has tried replacing these old function switches with relays or something a bit more modern. How about binding posts for the speakers instead of the awful push terminals? I'm just trying to keep this amp going since it has a nice layout (two power supplies and output stages) and really meets my needs. I thought about getting another preamp and bypassing the onboard, but that is costly. Any input/thoughts are appreciated. -harley

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
pioneer SA-6500 II problem	udip	Solid State	9	11th March 2011 10:06 AM
pioneer sa-6500 ii blown fuse	1968vwbug	Solid State	6	16th June 2010 09:39 AM
Pioneer SA 7600 II	XXX	Solid State	0	3rd February 2010 01:54 PM
Pioneer SA-5500 II and sennheiser HD 280Pro	jawbreak	Everything Else	0	22nd November 2005 03:17 AM
pioneer SA-1520	murat	Solid State	2	23rd February 2005 03:56 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

25th December 2011, 08:52 PM	#2
ohio buck diyAudio Member Join Date: Nov 2007	I bought one of those amps new in 79. Still have it and use it almost every day. I had to replace a filter cap in it several years ago but that has been the only issue I had. The owners manual had a very complete and accurate schematic included also. Anyway, you can try this link, you might find someone reasonably close. Stereo, Audio-Video Repair-Restoration Resources - Used and Vintage Best of luck to you.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)