
Grado SR-325 ~ $350
Features:
Vented diaphragm
Aluminum air chamber
UHPLC copper voice coil wire
UHPLC copper connecting cord
Tranducer type: dynamic
Operating principle: open air
Frequency response: 18-24
SPL 1mV: 98
Normal impedance: 32ohms
Driver matched db: .05
You MUST allow this product to "break-in" for at least 60 hours of music playing before you try to judge the quality of their sound reproduction. Before the break-in period, they don't sound that good at all, but after close to 60 hours, they sound like pure heaven. Grado's have one of the most accurate base reproductions of any headphone I've ever heard, and I've heard a lot.
Also, even if you don't get a Grado, make sure you get an open-air designed headphone. The open-air design is infinitely superior in achieving better sound reproduction.

