Here's a brand new item that's sure to be a hit - a fully modular headphone (i.e., design your own). My two configurations were very similar - a DJ orientation that has the spectrum tilted substantially toward the right (i.e. more bass, less treble). Unlike many such headphones, this one clearly resolves the 16 hz organ pedal tone so well that you can hear/feel the 16 cycle per second 'beats' that make up analog tones. The highs, despite the right-facing signature, are well resolved too - highly recommended for DJ-type sound, and for building other configurations with differing types of sound. BTW, the response in my testing (without any EQ or tone controls) was ultra-smooth.
http://www.hifiheadphones.co.uk/forum/showthread.php?t=4231