I have to update my post: A dormant love affair with the RSA Hornet has been rekindled!!! I had originally kind of lost interest in portable amps, cuz my iAudio X5L sounded quite good anyways, and I had kinda gone straight portable all the time, not wanted to deal with docks and inter-connects and cases and all the hoo-hah. Now, I have my new Zune 8G, and I started burning in my non-"M" Hornet, and I am fully back into amplification and more specifically, The Hornet...what a great little amp, I think I never really burned the thing in, and now I have, I realize major improvement.. This Zune is bad-ass little player, great sound when paired with those trusty Westone um2's!