Got my pair today from the soundearphones deal. I can't speak as a headphone expert but as a moderate home theater guy I'm pretty happy. For me out of the box the balance was quite nice. Full bass without being boomy with forward mids and highs that aren't lost in the mix. The bass selector does indeed have quite an effect on the sound. I find myself mostly sitting at position 3 with sometimes venturing into 4.
The only question I have as a relative noob to headphones is the volume. Overall the volume suffices but its borders on a tad low for some live tunes I have. Would people suggest using an amp with these headphones which run at 16ohms? Thanks for any help