On Wed, Jul 21, 2004 at 09:30:36PM +0200, Frank Barknecht wrote: > That's true, and because of this, AKG isstill selling out the older > models very cheap. I got my own 240DF for little money. 240DF is the > the reference headphone at german radio stations. I see them > everywhere at work. Still for our PCs at work, we bought the lower > resistance newer AKG-140 models, because the directly plug into the > soundcard there. FWIW, I've had no trouble driving my 600-ohm K240 phones directly from a consumer soundcard, or anything else. I guess it depends how loud you want to go, for me it's fine. I don't know if the efficiency is the same with the various 240 models. (K240, 240DF etc). -- Paul Winkler http://www.slinkp.com