I would also suggest to you the ROCK MULA. They come in blackgrey or gold/white.
http://www.mistertao.com/beta/pages/item/521864409192.html
......less emphasis on heavy bass, but has a nice tight sub-bass/bass response and also provides very clear midrange and treble.
Rock Mula looks pretty cool!
Which one more bassy, Rock Mula or Zircon?
Thanks!