No signal coming into Channel 1 balanced inputs of RA-300

sheckylovejoy

New member
I just bought a used RA-300 for a fairly reputable seller on eBay (100% pos feedback), but I'm having problems setting up. I cannot get signal into either the XLR or TRS inputs of channel 1, though the unbalanced RCA input works fine.

I have tried:
  • Different sources
  • Different cables
  • Switch inputs (L into Channel 2, R into Channel 1)
  • Switching outputs (Channel 1 to R speaker, Channel 2 to L speaker)

Still, I get nothing into channel 1 (the lights in front only do their dance for channel 2 and no sound to speakers, which are Monitor Ones)

Any thoughts? The vendor seems honest and is convinced the amp works properly. Am I doing something wrong?

Also, I'm a video editor, not a pro audio guy, so please speak slowly ;)
 
Based on your cable swapping (pretty much what I'd have done) and the lack of lights I'd say there's a problem at the input side of the amp. Rough handling during shipping may have been the final straw for a solder connection that was already marginal.
 
UPDATE: I finally was able to get back to this, and it seems that it's not that there's no sound coming out Channel 1, just that it's EXTREMELY LOW, about 1/3 of Channel 2 when the front dials are at the same setting. Does this indicate something else?
 
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