<blockquote id="quote"><font size="1" face="Arial, Verdana, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by BradJudy

I have the SR80s and they certainly don't need a headphone amp for pretty much anything I've run them on and this is using my META42 and CMOY amps for comparison. My Sennheisers on the other hand do need an amp on many devices (including most portable devices).
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What Sennheisers do you own? I've been looking at the 580s for a while, but have not made a purchase.

...Marko