Hi, I've had a Stereomour I built a few years ago with Goldpoint Mini-V stepped attenuator and selector switch. Recently I noticed that the right channel has started playing much quieter than the left channel. The low channel is still playing, but at low volumes it's hard to hear at all. At louder volumes, you can hear it, but it's still much lower than the left channel. I've reheated all the connections between binding posts, inputs, the stepped attenuator and the selector switch and I seem to have connectivity everywhere.
Can anyone suggest some likely culprits for the channel disparity I'm hearing? Thanks.