I use a Yorkville 400W amp with Planet Waves cables. I have a intermitent buzz with this combo. I play a fender jazz bass that was recently recieved a new heavier input jack. After testing cables with the amp, the Planet Waves made the noise, even through a different bass and different rigs. does anyone know why this might be happening? I cleaned out all my jacks with cleaner and q-tips,incase it was a dirty ground, which helped but did not completely clear the prob.