I sure hope you fellas can help me out. Got talked into buying a nice pair of Beyerdynamic DT 880's. Nice cans, but 250 ohm version, and don't work well for portable audio. Is there any portable headphone amp under $100 worth buying? I don't use headphones very often, but I've had these 880's in storage ever since I bought them because I just didn't get performance that I want from headphones. I like to ROCK! I've been looking all day at headphone amps, and I see some of them won't do 250 ohm headphones any good. Not enough power I guess. If anyone has any real life experience on this, I'd sure appreciate the input. Real life experience with DT-880's would be even better! Thank you all in advance.