Hey @markprice
Nice speakers, I have the same😁. You said you are using Qobuz. Listen to the first couple of tracks of, Diana Krall, The Girl In The Other Room at about 75-85 dbs. It’s a simple three piece band with a female singer. Poke around for Chesky Records. They are usually well recorded.
Speaking of the Ref 5’s, what port tubes are you using? How far from the front and side walls are they? How far are you from them? I can’t use points on mine because they muck up the wood floor below, so I got a couple of pieces of granite from a kitchen store.They made a difference . I also bucked up for some Gaia 1’s and they made a surprising big difference!
All the best.