Papermaker85 5,000+ posts
Banned
they are both nice. the manhattan is IMO the better sounding sub strictly because its smoother and warmer the quantum is a bit dryer but they both sound great. and they are excellent drivers.yeah they finally sent me specs kept asking where i was and what shop name was in town,, manhattan 12 has 15mm xmax, vas 40, 260mms, 86db,bl 20.1,.. quantum has 19mm xmax 212mms vas54, 91db.. specs look good just wish they were cheaper