Any suggestions on how to eliminate the hum that I get from the effects loop? Noise suppression pedals don't work for me btw. Also my distortion isn't as "good" as some people I hear demonstrating the head online. Early 2000's Triple Rectifier btw.
Can you explain your rig?
Are you powering pedals in front of the amp and in the loop with the same power supply? I get a ground loop hum from a One Spot if I use it in both places. An isolated power supply is the answer, or use batteries for one location or the other, if this applies. The pedals that normally go into the front are better on batteries, since distortion, overdrive, or compression require less current to operate.
Carry it one step further.......don't power your amp and your fx loop pedals from the same power strip.....seperate strips and seperate power supplies. I got an above average power strip from Tripp Lite where each half of it is isolated from the other half, and I plug the amps in one side and the pedals in the other side. and my hum problems went away.
But yeah, Alu asked the right question.....what's your rig like? How do you know it's coming from the fx loop and pedals?