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Shorting Amplifier Output

I moved my speaker and the speaker wire dislodged from the speaker lug causing it to short to the opposing side of the speaker lug. I have a Unison Research Unico Secondo. I noticed this when I started smelling a burning odor. Is it possible to repair, and is it worth it to repair? Are their any service places local to the Los Angeles area?
timyamasaki
georgehifi's avatar
georgehifi
10,312 posts
 


At a guess you’ve blown some output transistors, drivers and emitter resistors, $100 approx parts.
Looking at the dismantling layout, they didn't make it easy, the whole board has to come out. A good 4hrs labour, $400+ approx, in Australia some charge $150aud pr hr

https://www.hifisentralen.no/forumet/attachments/d652efdbaf5de7acb016cfb15c7350e9-jpg.619705/

https://www.hifisentralen.no/forumet/attachments/26d69d1d38275e8c54ccc5e8c030d563-jpg.594604/

https://www.hifinews.com/images/419unison.top.jpg

Cheers George
atmasphere's avatar
atmasphere
11,841 posts
 
Is it possible to repair, and is it worth it to repair?
I'm going with yes. Whether there is someone in LA is a different matter, but I'd be a bit surprised if there wasn't, its a big town!
timyamasaki OP
10 posts
 
Thanx for the responses. That would be around $400 - $450 in US dollars including parts. I paid a little over $2k for the Integrated Amp 16 years ago. I love the sound and want both channels to match, but I don't want to drop it off anywhere that isn't a preferred dealer or repair shop for Unison Research.
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