HI, I just bough an hd 500x but when i plug it in my amp I get no sound. I use a fender mustang 1. I pluged my guitar in the guitar in, and i took another jack and plugged it into the L/mono to the input of my amp. I would like to know if i can use it with headphone or plug it in my computer into speaker to get sound? thx for the help! btw sorry for my bad english I im from quebec.