Selling my used RT-10d. It is in good condition but there are a few scuffs on top which not very noticeable at all in normal lighting conditions. There is also a very small tear on one of the grills. This is a very nice subwoofer and does great with music and even fairs pretty well for home theater. The 10" driver has 20+ mm of excursion and two passive radiators so it will put out a good amount of output for it's small size. It does not include the mic but it can be ordered from Klipsch for $30. I bought it used for 900 (they go for $1399 new online) so I need to get close to that to break even, I need the money. Thanks.