I am having a weird problem. I am getting almost a tremolo effect through my amps on the mid frequencies. At first I thought it was one of the pedals in my chain, so I plugged strait into my Peavey Valveking 2×12. Same problem. Then I plugged into my Vox AC4TV. Same thing. I have never had this problem before. I suspect it may be the power in my house. The contractor who built it did a pretty crappy job.
hmm a trem sound? i would think its sum type of motor in or around your house that the amp is picking up, like a dryer, a fan, or a heater with a blower fan. i think it could be sum type of rotating electro magnetic motor, look around the house.
