Electro Harmonix Mic Pre My 2880 Electro Harmonix Looper Isn't Working Right?

My 2880 electro harmonix looper isn't working right? - electro harmonix mic pre

I bought a new Electro-Harmonix 2880 Super Multitrack Looper. I put everything in such a way that tells me to connect my amp. When I amplifier is all very vague, and although on the distortion channel, the guitar sounds clear, but with a hissing blur in the background. In addition, during recording, then try to play again, can hardly hear with your ear directly to the amplifier. I do not know why. The two cables I use to connect a cable and a monster in touch, is it cheaper to use another brand. I think the problem is least expensive cable. Does this sound familiar?