Which headphones are comfortable?

AKG 501 even better and very comfortable.

I've owned them all- there are many that sound good, but Sennheiser is the keeper for comfort. HD600s can be had all day long $175-$200. I agree, an amp is critical to get the most out of them. Another $100-$200 will get you a nice Creek, Musical Fidelity, Headroom or JMT amp. Upgraded power supplies for amps go a long way. There are a few integrateds that have decent headphone sections- try first. Upgraded cable from Cardas is nice but stock doesn't suck. Happy listening.

Good suggestions all. I have the Senn's HD 600s with a Corda HA-1 MKII (headphone amplifier) for a total cost of about $550 new. Very comfortable and damn inexpensive compared to a speaker system of comparable quality!

David

This headphone junkie has been all over the place with so many models..I keep coming back to the Sennheisers. I have the 650's again, but the whole damn line is hard to beat for comfort, sound and everything else! What an exceptional phone and company!!

I listen to Grado sr-125s for 4-5 hours a day at work through my ipod, I have found them to surpass my expectations for comfort and sonics.