The DACs are internal to the DSP we use; the DSP is a custom in-car part (16 bit sign-magnitude, fourfold oversampling digital filters with noise shaping), and we use good quality components in the audio path (all tantalum caps in the mk2, giving better stability) - and things like the burr-brown amps for the 4v outputs.

John did some analysis on the empeg's audio output and the frequency response was pleasingly flat - I think it turned out to be better than the SB live.

Really though, the empeg just sounds good to our collective ears. We could fit some nice BB dacs too, but we're very happy with how it sounds as-is.

Hugo