I4U NEWS reviews the Bowers & Wilkins Zeppelin iPod Dock.
 

Sound is the real appeal of the B&W Zeppelin, and it has sound in droves. I like bass to my music , but not to the point of overpowering the mids and high sounds. The B&W Zeppelin has fantastic bass along with crisp and sharp highs and mid range sounds. Sound output is rich and to achieve this the B&W Zeppelin uses three amplifiers, one for the mid, one for left, one for right and one for bass.