so just got the Digizoid ZO2, and I gotta say I love it. This thing brings power, it gives the bass one hell of a kick, as much as my 7.1 Yamaha receiver. The bass boost has an interesting contour, it is a lot like a bypass, the same way a sub woofer works hence the "personal sub woofer". It is really great, it does not warm the treble or mids too much, but I feel like the lower mids could use some more mids and less warmth, but that is very seldom. I like the black background too, and it is a HUGE step up from the E6, I absolutely hate the E6 now... It simply made my music warmer. This little device works wonders, granted in terms of amplification it isn't good considering there is only two presets and the lower one is really quiet and the higher one isn't as hifi.