external power source? if you practice in the basement (many do), is it near your washer/dryer and catching interference from the 220 line? or do you suck at playihg an instrument and you just think it's line noise? that last part was a joke. On 13 Nov 2009 at 13:33, Joel Canfield wrote: > I have a little 15W Fender amp. Almost always, it buzzes like it's picking > up interference. Doesn't seem to matter what instrument I have plugged into > it (Strat, acoustic guitar, mandolin, mic with lo/hi adapter) > > Power cord? Cheap cables? Broken? What are the two most likely issues?