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My Amp is Broken - Not Sure What to Do - Any Recommendations?

I went to turn on my Audio Research SD135 amplifier the other day, but it will not turn on. According to the Audio Research service technician I spoke to, the problem is a broken Thermal Trak module chip. He said that it is a temperature sensing component, and that replacements are no longer being manufactured. He said that it is a known problem, and that Audio Research will give me credit to purchase an Audio Research amplifier from an Audio Research authorized dealer. 

I was wondering if Audio Research makes anything powerful enough to drive Vandersteen 3A Signature speakers (which need between 100 - 200 watts of power)? I am using an Audio Research SP8 Mk II as a pre-amp.

I don't really have much of a budget and am not sure what to do. I would appreciate any advice. Thank you.
distortions
johnchristian's avatar
johnchristian
7 posts
 
Contact Jeff Jackson at lktrnx@gmail.com. He's a great guy and will give you the straight scoop on realistic options. 

Good luck! 
johnsonwu
469 posts
 
Here’s the problem with ThermalTrak devices that supposedly was solve by Ayre but not AR https://www.stereophile.com/solidpoweramps/407ayre/index.html
ON Semi only made 1 set of thermaltraks, and yes I just confirmed that Mouser has them in stock.
By the way the SD135s are only 10 years old.

bigboltz
55 posts
 
Whatever you decide, I recommend you look into a Vandy sub(or two).  Besides sounding awesome with musical bass, they will allow your speakers to be hi- passed which offloads the bass responsibility from your amp. Believe it or not, your Vandies will sound better top to bottom, not just in the bass.   The 2w’s can be found for pretty cheap
kahlenz's avatar
kahlenz
274 posts
 
Look in the Yellow Pages and you will find dozens of competent amp techs down the street from you willing to work for $25.00/hr.  Or buy a new amp.
inrock
7 posts
 
Distortions:  I recommend that that you formally enter a repair/service request on the ARC website.  Notwithstanding the fact that your warranty has expired, reputable equipment manufacturers will want to exhaust options available to satisfy the customer.  Since the ARC technician has already indicated there is a failure history (if not a latent defect), putting your request in text places the onus on the company to provide a formal response.  Based on my personal experience with amplifiers being blown out by lightning (electrical) and thunder (concussion) storms, I can tell you that company corporate and subordinate units really do listen and find ways to make the original purchaser happy and preserve the image of their brand.  I know it can be frustrating and time-consuming but, if necessary, you can keep going up the corporate ladder until somebody pays attention and commits to resolving the problem.  Do not simply accept the word of a first-level service technician or customer service representative, but ask to speak to their supervisor.  Best wishes for a successful outcome. 
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