Behringer B1500D Powered Subwoofer - $250 (Horseheads)
I purchased this new from MusiciansBuy less than 2.5 years ago for 549.99 and its literally only been used twice. It was an impulse buy for an aspiring DJ. It truly is in mint condition and it's an absolute beast. The second time it was used, it made a light fall off the ceiling in the basement, and was banned by my mother and sadly was never used again.As for the specs, it's 15 inch, 1400 watts.