Audio Research SD-135
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| Condition | |
| Payment methods |  |
| Ships from | Sebastopol, CA, 95472 |
| Ships to | United States |
| Package dimensions | 23.0" × 24.0" × 17.0" (58.0 lbs.) |
| Shipping carriers | USPS, UPS or FedEx |
| Shipping cost | Free |
| Original accessories | Box |
 Average | 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 |
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| 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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