Preamp with separate volume control for each channel?


Thought I should ask you knowledgable folks for thoughts and recommendations.  Recently had my vintage Music Reference RM-9 repaired after losing the left channel.  Now it produces output, but at a considerably reduced level:  Left side volume at 9, for instance, while right side has to be about 5 to match output. 

  I'm using an old Promitheus Transformer Based preamp to make things work; tried a different passive with a single volume control and it just didn't work. 

   I had some issue with the repair shop regarding the amp and am reluctant to take it back to them.   

Thanks for any input.

 

leadfeathers

 

sbrownnw

I’ve used Chase RLC-1 various ways in several systems over the years never experienced crosstalk, my friends who have them never mentioned it, perhaps because I/we typically use only 1 input (VCR it’s default selection).

Either via a tape or processor loop or pre out to RLC-1 out to Amp. Office, I’m just using it for remote power to save myself a short walk around the desk, let’s me put the Luxman Integrated at the far end, keeps the USB cord from my PC shorter and against the wall

Those Wharfedale speakers are gone to my son, I restored a pair of Vintage AR-2ax, but you can see the Chase RLC-1 below the left speaker. Luxman has remote volume, but not remote power, it’s switch stays in/on and the Chase simply gives me remote on/off.

I used to use a single self-powered sub with the Wharfedales, just to keep their 6-1/2" drivers from seeming small, no need for the sub with the AR-2ax, they have 10" woofers.

I highly recommend compact 3 way AR-2ax (especially if in/on a bookcase, they just fit, no ports) like my main system speakers, they have level controls for the tweeter and mid range, to adjust in whatever space they find themselves.

Thanks everyone for your suggestions and comments.  I agree that the best solution is to get the amp repaired properly, but am frankly discouraged.  

  The backstory is that a couple years ago, the right channel went out.  I took it to a nearby electronics repair shop; don't think he had an emphasis on audio.  He charged about $300 and a couple weeks to get it going again.  It functioned well, sounded fine, except that the bias adjustment for the right channel didn't work anymore, which is to say that adjusting the pot didn't dim the light, which was how the bias was determined.  

    When the left channel went out, I was reluctant to take it back to him.  So I took it to George Meyer Audio in L.A.  Asked them to repair the left channel and get the right side bias adjustment feature working again.  

  They charged about $600, replaced several caps, filter caps, FETs.  And the bias still didn't light.  

  I'd been using 4 KT120's, but wanted to use new ones.  While I waited for them to arrive, I plugged in 8 6550's I used originally.  One of them popped, blew the fuse on that side.  After I replaced the fuse, received the new KT120's, I've had this issue with the uneven output.  Am not suggesting its an issue with George Meyer's workmanship; but the bias adjustment issue (and the hour and a half drive to L.A.) have me reluctant to return it to them.  

Don't know of another repair shop in So Cal.  

Anyway, thanks for all your input.    Jeff