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Rebuilding Power Amplifier(s)

I have a couple of Metaxas Solitaire power amplifiers.
One amp is operating on both channels and the other has only one channel working.
They have been inspected by a repairer , who has refused to conduct any repairs as repair work has previously been conducted to a poor quality.
So I have now retrieved them and propose to refurbish myself.
- Its either that or just dispose of them.
My plan is to replace every discrete component  to original spec or better .
Now I have no experience of such work , but I can't see any great skill needed for such work.
Have I under estimated , not the quantity of work as I have plenty of time , but the complexity for a novice.
I'm interested in comments.
bobby1945
vair68robert's avatar
vair68robert
588 posts
 
The best pointers I can give is to measure the components on the board
and know the measurements of the new upgrade components .
And don't change any values . .
petg60
1,486 posts
 
The don't change any values is critical for keeping original sound, example, if original caps are 85 degrees do not substitute with 105 degrees whatever a technician may say, new caps are much better today. Compare the original factory specs of parts to be changed to new ones, you can create an excel of what to substitute and compare the specs, this will give you a better understanding. Service manual is a must. Each step at a time and rather work at night.

G

imhififan's avatar
imhififan
2,108 posts
 
Now I have no experience of such work , but I can't see any great skill needed for such work.
All I can say is GOOD LUCK!!!

https://liquidaudio.com.au/hall-of-shame/
bobby1945 OP
79 posts
 
This is my Metaxas amplifier !  And I have been advised my 2nd one is as bad , if not worse!
My skill set is not adequate to undertake this work .
I have accepted that unfortunately  its a bin job.
 
bigkidz
3,312 posts
 
@biobby1945 where are you located?
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