so I got mine today and i'm running it off either my lappy or my iriver with trs to rca adapters. Its definitely a step up from my entech and my old lite dac. Theres a lot more bass extension that I never knew I was missing out on and treble brightness seems to have gone down a teeny bit. (I think I should change headphones since I want less treble ) Overall, for $120, its a friggin steal.