I have a turntable with a passive speaker setup. My turntable is UTurn, my preamp is a Pluto Phono preamp, my amp is a PulseAudio Class D amp, and my speakers are Elac Debut 6.2. My problem is that my volume knob only controls my right speaker. My left speaker seems to be set at a specific volume and turning the volume knob does not alter it.
The weird thing is, that if I let a record spin for awhile without putting the stylus down and the amp turned on, the problem fixes itself. It can take like 30 minutes though which is far from optimal.