Improving Technics SU-8080

darkpeak · 8th December 2011, 10:38 AM

Hello there -

I've got hold of an old Technics SU-8080. It's a very nice amp, but pretty old now, and I wonder if there's anything I can do to improve it, such as replacing the capacitors. Does anyone have any experience with this? I have the users' and service manuals with schematics, if they're helpful.

Would be very grateful for any advice.

All the best, Richard

jaycee · 8th December 2011, 05:27 PM

On an amp of such age, replace all electrolytic capacitors. That in itself will most likely bring a vast improvement in sound, especially in bass if the power supply capacitors have aged significantly.

ingenieus · 07:36 PM

Replacing all the electrolytics seems like a daunting task, but it should be worth the effort.

Technics_SU-8080

Here is a thread about working on one these beasts:

My SU-8080 Technics is popping...

darkpeak · 10th December 2011, 10:10 AM

Thanks for the replies. Any recommendations for which caps to use?

All best, Richard

jaycee · 10th December 2011, 01:42 PM

Just use good quality ones - Nichicon, Rubycon, Nippon Chemicon, Panasonic. 105c types preferably. Personally I am a fan of Panasonic, but any of the brands I mentioned are good.

8th December 2011, 10:38 AM	#1
darkpeak diyAudio Member Join Date: May 2011	Improving Technics SU-8080 Hello there - I've got hold of an old Technics SU-8080. It's a very nice amp, but pretty old now, and I wonder if there's anything I can do to improve it, such as replacing the capacitors. Does anyone have any experience with this? I have the users' and service manuals with schematics, if they're helpful. Would be very grateful for any advice. All the best, Richard

9th December 2011, 07:33 PM	#3
ingenieus diyAudio Member Join Date: Apr 2011	Replacing all the electrolytics seems like a daunting task, but it should be worth the effort. Technics_SU-8080 Here is a thread about working on one these beasts: My SU-8080 Technics is popping... Last edited by ingenieus; 9th December 2011 at 07:36 PM.

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8th December 2011, 05:27 PM	#2
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	On an amp of such age, replace all electrolytic capacitors. That in itself will most likely bring a vast improvement in sound, especially in bass if the power supply capacitors have aged significantly.

10th December 2011, 10:10 AM	#4
darkpeak diyAudio Member Join Date: May 2011	Thanks for the replies. Any recommendations for which caps to use? All best, Richard

10th December 2011, 01:42 PM	#5
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Just use good quality ones - Nichicon, Rubycon, Nippon Chemicon, Panasonic. 105c types preferably. Personally I am a fan of Panasonic, but any of the brands I mentioned are good.

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