1Time, you should consider trying his opa2134 headphone amp to add some extra juice out of the hotusb1. I know exactly what you mean that the hotusb1 could use a little ooph with the 580's. I'm currently using the opa2134 amp with a cd player and it drives my 580's alot better. I don't turn it up more then a few notches and it's pretty loud.
post #31 of 771
4/13/08 at 12:05am