80s Levinson Gear - Best Repair/Refurbish?


Hey ’Goners, here’s the question: I have an ML-26 preamp, an ML-12 preamp, and an ML-23 power amp, all in need of various amounts of repair/refurbishing.

I’m in the Chicago area but there may be nothing local.

I’d appreciate suggestions for the best spot to have all this work done. I think the gear is worth it.

Thanks for the advice!
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Wow, thanks for the information.  I mean, you can find working Levinson 23s for less than $1800 to $2500 but I suppose they would eventually have the same issues.  Still, that seems disproportionate to the value.  Yeah, I can't afford $2600-$5000 to have these pieces serviced.  Ouch.  
pyramid talks about the various levinsons on the site.  Its good reading.  The 23 is the 30 hour unit discussed.   Its a bear to work on.
I see what you mean. Here's a quote from Pyramid:

"So the bill for overhauling the No23 or No23.5 typically runs about $3000, maybe a fifth of the replacement cost."

So is a refurbished ML 23 worth $15,000 or at least competitive with a $15k amplifier?  That seems hard to believe, or they wouldn't be going for around $2000.
Pyramid Audio, TX. I spoke to them yesterday regarding my ML no. 334 amplifier. 
They have engineers on hand to answer questions and the ability to make repairs. 

http://www.pyramid-audio.com/brands.html

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