Audio ResearchSD-135Audio Research SD-135SD-135 Natural silver, in great condition. This unit is clean and bench tested. The amplifier was recently returned from the factory, where I sent it to be serviced prior to selling it. It did have...2500.00

Audio Research SD-135

Listing ID: lis8edd2 Classified 
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Time Left: 22 Days

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Asking Price: $2,500.00

New Retail Price: $6,000.00

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Condition
8/10
Payment methodsPaypal card
Ships fromSebastopol, CA, 95472
Ships toUnited States
Package dimensions24.0" × 24.0" × 13.0" (55.0 lbs.)
Shipping carriersUSPS or UPS
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Original accessoriesBox
Agon miniAverage Research Pricing

SD-135 Natural silver, in great condition. This unit is clean and bench tested. The amplifier was recently returned from the factory, where I sent it to be serviced prior to selling it. It did have a bad RCA input jack, which was fixed. They bench tested it as well and found nothing else wrong with it. See email from AR below.

I have owned the amp for (5) years. It has powered a pair of efficient TAD 2402's and so hasn't been pushed. This is by far the best sounding amp I've owned, including a few AR tube models. Original box in good condition. Original power cord. Non-smoking home. No pets.

February 2, 2018 – email from Audio Research:

Please see below the Tech notes from Donn Anderson for the work performed on your unit. 

Tech Repair Notes:  

Service Tech Report Notes:
Resoldered open connection to left channel RCA jack. No other problem found. Gain is normal & sonics were found to be good in listening evaluation. Test ran. Final test okay.

Questions for the seller
I know. Great company and one of the reason so many of us are still in this passion.
Absolutely.
O.K. Thanks.
(Got to love this company. They included detail on my service invoice.) Serial Number 77304005 Original Purchase Date: 03.01.2013
If you could that would be great. Thanks again.
Waiting to hear back from the factory re mfg date. Will let you know.
How old is the amp? Are you the original owner? Thanks in advance.
This model was available from 2007 to 2010. I'm not sure when it was actually manufactured. I might be able to ask the factory if you like. I am the second owner.
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dangerisland 

Last 12 months
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Member since March 2003

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