Brand new in box. Sells from Ourlaw for $659 plus shipping (approx. $65 to my address). Incredibly versatile sub: ultra-low, room-filling bass with multiple tunings and input options. Stereo RCA input jacks for use with AV receivers with bass management, and a second set of RCA inputs for preamps without bass management. Dual ports and comes with port plug. Great fit and finish. Plexiglass top for use as end table if desired. Glowing reviews. 66 lbs.
Great for rooms/home theaters up to 4,000 cu. ft.
±3.0 dB from 19 to 179 Hz
https://hometheaterreview.com/outlaw-audio-ultra-x12-subwoofer-reviewed/ (measurements on page 2)