KShaft, I too was suprised that the Zu would help the bass out on the 600's but not the 650's which I no have better bass to begin with. OTOH, the equinox lets tons of mid-bass slam, and extintion through with the HD650. By far the best bass I've heard(and the most) of any phone I've had so far. I just find the upper regions lacking with the equinox. This is all using either the SDS or the gilmore amps with either the Shanling w/mods or the Audio Aero CDp's. I would not have found the Zu lacking if I didn't know what kind of bass the 650's are capable of. Can you get your money back on the Zu's? I would suggest trying the equinox. Good luck.
post #31 of 93
11/16/03 at 8:31pm