Has anybody compared these 2 units? I've read good reviews about the EarMax Pro, but the Berning micro-ZOTL's design intrigues me. The cans to be used with either of these, of course, are the Sennheiser 600's. Thanks.

Does anyone know why the HeadRoom Supreme's cost went down to $399. I understand the old version was $449, and after all the tweaks they made to the product line, it would make sense to keep the old price ( unless of course they removed parts in the tweaking process ? ) Maybe this is a dumb...

This is a very interesting article http://www.ihr.mrc.ac.uk/caf/soundsy...rs/poster2.pdf

Where is the upgraded MG Head available? I contacted a distributor of this product and he said the upgraded version has a tube cage and a detachable ac cord (cost: $325). He said he wasn't aware of any upgraded parts inside the amplifier. This is weird since Headwize's announcements page says...

Here is a quote from an article describing the MG Head's performance with Grado cans, enjoy: "Sonics in direct hook up to a decent source are truly excellent. The sound is full-bodied, rich and muscular but avoids bloat and drag. It’s typical triode seduction without the common roll-off in...