Need help with Grado 325i vs. Senn 600's

I've listened to both and to me the Sennheisers were too laid back. Especially for rock. They just didn't have the slam of the Grados.

On the other hand, I don't think you'd find anything more comfortable than the 600's.

Both will benefit from an amp. If you're going to try to run without an amp, get the 325i's.

Voodoo- Neither of those phones will give you anything like what they are capable of w/o a headphone amp, but you can use one in place of a pre-amp in most systems, if they have a loop out feature. For detailed reviews, go to head-fi.org. Most folks feel that the Grados are more forward, the Senns more neutral. The Senns are definately more comfortable to me. 200 hrs is not a lot of time if you are buying used.

Do the Sennheisers NEED an amp? Is 200 hours on a headphone a lot when looking to buy pre-listened? I listen to a lot of rock, reggae, downtempo, and jazz, which headphone favors those listening styles?

Well,I own a"variety" of can's.Just bought Grado 325i,and love them.Also have Senn 650,running thru a Headroom micro amp.Dolllar for dollar the Grado's,are "probably" alittle better.They can be had for $295.00 delivered,the Senns,at $350.00 delivered.www.headphone.com,is the place.The Senn's are aliitle more comfortable,but you'll get used to the Grado's and once they break in"look out"!Hope this help's. Ron...