I am getting a weird sound when using a Boss NS-2 noise suppressor in the FX loop of the PS-2. It only happens when gain is high but does not sound like a ground loop. It almost sound like the signal is tripping my noise gate. Tried messing with the threshold settings to no avail. I have also tried both hi and low settings on the FX loop button. It works fine inline in the loop (not 4 cable method but obviously that is not ideal to get most of the gate) and works fine in 4 cable method in my amps loop, just not in the PS-2 . Only happens when a specific level of gain is reached which makes me think the signal hitting the gate before the PS-2 and then the signal in the loop hitting the gate (post ps-2) is causing this? Again, works fine in my amps loop at same gain levels . Thanks
Hi @henderj3
It probably is a ground loop, but an audio clip would help to understand a bit better. Do you have any isolation transformers you could try in different locations?
I agree. It does not happen with the noise gate (boss NS-2)in the loop of only the amp and my pedal board. This issue Only happens when I run the OUTPUT of the noise gate to the PS-2 FX loop return ( RETURN of noise gate connected to SEND of the PS-2 fx loop) and the SEND of the noise gate to the input of the amp. Think the issue is a signal ground loop created between the amp and the PS-2 with culprit/crossover being the noise gate loops)
I would still like to use my noise gate pedal in the loop of the PS-2 so I will try a line isolator.
Any you recommend? Was looking at either a buzzkill by good wood audio or the radial sb-6. Don’t want tone or volume loss. Thanks
If you want quality, check out the Lehle P ISO it has flat frequency response from 20Hz to 100kHz, which is insane! Radial product looks good too.