Why is there a lot of buzz / hum only in SSP mode?
In SSP mode the preamp is completely bypassed. If no problem exists in regular mode, then the hum is originating from another source. In home theater setups, ground loops are a common problem. The loop can be traced by unplugging the components one at a time until the hum disappears. The power cords should not be plugged back into the same outlets. If the buzz disappears only when cable TV is disconnected, the cable company should be contacted. 18. Why does the sound from the main speakers disappear when the subwoofer is connected? Some models of powered subwoofers mute their inputs when not in use by shorting the input jack. If it is connected to a second output of the 2-channel preamp while it is off, the sound that is supposed to go to the 2-channel power amp is also shorted. If this is the case, the subwoofer should either be left on, or disconnected from the preamp when playing 2-channel material such as phono or cd. 19. How is cartridge loading set in the Phono 1, SFP-1, SFP-1 Si
