affordable DAC for rock/metal

Any headbangers with suggestions for a DAC around $300?

I have Klipsch Heresy and Onkyo A-9555, which sounds great and I want to upgrade to an external DAC from the pc soundcard I've been using.

The overall sound I like is crunchy, full and dynamic with presence to suit live rock shows.

I'm guessing the DAC should be able to separate instruments well and have a clear, neutral midrange.

The Heresys don't sound bright to me, so I'm thinking something that makes the even more alive would work.