We received our T1 Phono SB Turntable last night and connected it to our Play 5. The sound was initially great, but the belt quickly came off and needed placement again. This happened a few times, but we got it to where the sound was good. We went to use it today and it went from sounding okay to playing way too slow. The belt and everything else seems fine looking at it, and it was working fine. Any idea why the turntable would start warping the sound to super slow?