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Yamaha A 500 Integrated Amp Modifications

I just bought a A 500 amp circa 1984 model off Ebay.  Owned one of these for nearly 8 years from 84 to 92.  Nice clean sounding amp.

I was wondering if there are any modifications that can be done to this amp that might improve the soundstage and perhaps also the imaging of the instruments?  I don't want to change the sonic character of the amp which is pretty neutral.  

Has anyone done any modifications to this amp or another Yamaha and noted some real improvements to the sound?
will62
erik_squires
16,676 posts
 
Time for new power caps.

Otherwise, either love it as is, or swap it. :) 

Best,

E
will62 OP
177 posts
 
Thanks Erik.  Yes, I liked it as it was previously.  Wasn't sure if there could be anything else done to improve it further.  

Power caps are Capacitors, correct?
audioman58's avatar
audioman58
4,323 posts
 
Much much better coupling capacitors are available, as well power capacitors 4pole caps by Jensen,or Mundorf ,increase suzes by 50% in microfareds if room.are the best,as well  are better resistors, 
NEOTECH 6-9S copper Wiring   all connectors to  Copper Gold Type. Fuses and holders get rid of cheap steel fuses. Much better diodes, bridge rectifiers
Torroidal transformer  Piltron  Black double potted type . 
This is if it is worth it . This is probably over $ 1200, to do this depending on prices and labor st $75 an hour.
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