I use mine with my ATH-MSR7, if you like a lot of bass well they are not the headphones for you.If you like "Clarity" and good separation well try the MSR7 monitor headphones.I use a amp(C&C BH2)with my & ATH-Ad900 + DX50.
I'm using the MSR7 as my commute phones, want to try something different.I'm a big man I can handle the weight of the phones. I like that they are closed back.Ohhh the ZMF's are pretty! Fostex strikes again. I have the alpha dogs so i'll pass on the ZMF'S.I'll be looking for your review of the ZMF's.