Hi all. Newbie here, so thanks for the add. Wasn’t sure what to title this, but I experienced an interesting effect and curious to know the cause. Was playing my cassette player through the Tape 1 input. While that was going I decided to remove the Sonos RCA plugs, which were connected to the SAT input. The Sonos was off, but as soon as I removed the plugs the cassette sound improved and was louder. What could have caused this? Thanks!