Hope someone can help here. I bought this setup last week. Put it together on Thursday and I am really not enjoying it. The sound via Spotify is dull and flat and far too bass-y. It sounds far better coming through an Echo or a Bose wireless speaker. I am outputting at Extreme. It isn't much better with CD (which was the main purpose of buying the amp though the streaming was an added benefit). I play a lot of good quality Jazz & Classical CD's though went with some pop today for balance. Nothing. Everything sounds lifeless, boomy and frankly is horrible. My wife notices (and I am not being sexist here - she just doesn't care about hifi or at least didn't till she heard this amp) and prefers to stream through the Echo. Friend two doors down has a £5k Tag McClaren system and loves his hifi and we went through the wiring together - albeit briefly - and positives & negatives were aligned - just in case I had screwed up. Tried YPAO and it didn't say Out Of Phase. Any guidance? I bought the amp through Peter Tyson and called them on Thursday and was promised somebody would get straight back to me. They haven't as yet. Thanks in advance.