Hi. This is a terrific sub for music and HT. It has 2 12" drivers. I have owned a few M&K subs, and like the others, this one is fantastic. I am using a huge Tempest sub now, so I don't need the M&K anymore. The cabinet is in very good to excellent condition, showing only very small, very minor blemishes. The black grill cloth is slightly worn, and if purchased by a perfectionist, should probably be replaced with some stretchy radio shack grill cloth, which appears to be an exact match. The asking price is $550, but I will look at trades and offers. I am currently looking for a mid- to high-end cd player, a SACD player, Jazz CDs and LPs, and any other cool stuff you might have to offer. Don't let the price scare you. It is fair, but I got into this sub for a good price and will deal to move it. Shipping is going to cost a bit, since this monster weighs about 70lbs.