I installed a .01uf cap (Mundorf) on the inside of the input of my amplifier to roll off the low end below 40hz (based on Danny's recommendation). Worked well for a couple of days then one of the channels was only letting high frequencies through. removed the caps and all is well again. Can I not install in the caps on the inside of the rca input of the amp or what would have caused the cap to go bad?
