Sunfire True Sub TS EQ Signature 12 subwoofer, in excellent working order. Rated 7 only because of cosmetics. The beautiful deep dark rosewood finish has some scratches on the top - see photos. Also, the original feet have been replaced with rubber isolation pods - they are glued on. The amount of subterranean bass this thing is capable of is pretty amazing. It has solid output well below 20 hz, and I've never heard it strain or run out of gas. It is truly the most impressive bass output I've ever heard from a subwoofer.
This is the 12" Signature version with the built-in equalization system that includes a calibration mic. Line level balanced XLR and RCA inputs, as well as speaker-level in and out. The manual says the built-in amp does 1,500 watts RMS with an impedance of 3.3 ohms, and a frequency response of 16 hz -100 hz. I purchased it in 2017 and had a local shop replace all the large caps on the board, as a precaution, since I had read that there were issues with some of the earlier versions, but it worked flawlessly when I got it and it still does today.
I have the original triple-boxes and original packing for it, power cord, and the calibration mic. Gross weight is about 70 lbs. I have a PDF of the manual. Buyer pays actual shipping.