Companion channel silent

[Axel]

Thanks to Rafal123 post above, I did not have to go thru a lot of troubleshooting steps he had gone thru.

I recently acquired a short speaker cable (4' Audience 24 SX) which required me to move my companion unit about 12'  from the master unit. I ordered a 15' Blue Jeans cable with the same specs as my 3' BJ cable. The sound was wonderful with new speaker cables except I could not play 24/192 files from Oppo->Mutec->250pro(AES). This combination worked well with 3' cable.
Then I came across Rafal123's post and we exchanged PMs.  Unfortunately , I could not get RCA->XLR  (75->100 ohm)impedance transformer, so I ordered BNC->XLR transformer like below. They also have similar transformer from Canare.
https://www.bhphotovideo.com/c/product/8...tml?sts=pi

After inserting the transformer, I can play 24/192 files without any problems. The sound is wonderful but I also felt that the companion/Right Speaker  could have gained couple of DBs to be at par with Left speaker . I need to test this with SPL meter though.

I think AudioPrana cables already have a passive transformer like this built in.

Even if you are using shorter link cables, I would certainly encourage you to try a similar transformer if you are using RCA->XLR link cable.

I bought a 110 Ohm cable from Cabledyne, who make a dedicated Devialet cable. Works like a dream, and saves having to use a transformer. http://www.cabledyne.com/devialet.html