Cut Out The Noise

[BooBoo]

Don't know if the ground loopback and hiss problems have been resolved but here's some advice just in case..
Ground loop: Run all your equipment into the same power source. I use a power conditioner. IF the supply is wired properly and to a good ground, you shouldn't have a loop problem. In the case of an open ground, I have had to ground lift my Dell laptop as well. Not the best choice.

As for hiss, it is usually a sign of too much gain on a noisey effects processor. turn off the effects and see if the problem goes away. If it does, then adjust accordingly for a happy medium.