Bowers & Wilkins ASW-675 Subwoofer Like New For Sale

Selling mint condition barely used Bowers & Wilkins ASW-675 Subwoofer in black, including Monster cables for stereo connection ($200 value). The subwoofer is in perfect working condition. I'm asking for $550, but will consider best offer. Feel free to reach out with any questions.
Details:
http://www.bowers-wilkins.com/Downloads/Product/Archive/ENG_FP13935_ASW675_info_sheet.pdf
Most suitable for the largest domestic installations, the ASW675 is visually very much part of the 600 Series family. But behind the familiar moulded baffle are an amplifier and drive unit that are all their own. What it loses in volume it makes up for by other means: a higher power amplifier than normal with enough output capacity to produce the necessary low-frequency equalisation needed to overcome the restrictions of the compact cabinet, and a drive unit with extra long throw, volumes of air with low distortion.
Description: Active closed-box subwoofer system Amplifier power output: 500W continuous Frequency range(-6dB): 17Hz and 40/140Hz Dimension: H 340mm W 340mm D 411mm | H 13.4” W 13.4” D 16.2” Frequency response(±3dB): 22Hz and 31/110Hz Weight: 25.5 kg / 56 lbs.