I think both 2x and I have heard a bit of white noise off our speakers with the ADA1500. I have only heard it when with in 1 or 2 feet of the speaker when nothing is playing. I was not really concerned about it as I can't hear it from my seat (although the current room ambient is really high as the walls and floor are bare). I have not tried to trace it down but probably will once I get my stuff setup again ... probably late march or early april the way I'm going.


You can run the test by shorting the RCA input (make sure the XLR input is disconnected first). I'd plug a short RCA cable in and short the other end. If you still hear the hiss then it's coming from the 1500 otherwise it coming from something before it in the chain.