I don't know. Haven't heard any of them. I think AdamP88 has a Mark II+. You might send him a PM.

If you check eBay, I think there is a link to a manufacturer's forum that will have more feedback on the different models. Also, you can try searching through Head-Fi.com to get more info.

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"Nothin' up my sleeve. . ." --Bullwinkle J. Moose