Optimus Prime's Stereo Equipment Old School Audio - Old School Prices - Professionally Tested Product Description This is the Bose Acoustimass 7 Home Theatre Speaker System subwoofer module in white/ivory. The unit has been bench tested and confirmed working. Cosmetically it shows light scuffs and marks consistent with normal use — please review all photos for details. Please review all photos for details. Highlights At A Glance ✔ Fully tested and verified ✔ Good cosmetic condition with light scuffs and surface marks from use ✔ Free 30-day returns ✔ Fast, insured shipping Testing & Verification The Acoustimass 7 subwoofer module was tested through all six spring-clip binding post connections — left, center, and right channel outputs to the cube speakers, and all three receiver input pairs. The internal driver and passive radiator were confirmed free of rattles and distortion across the bass range. All connections were verified for solid contact and correct signal routing. Shipping & Returns Fast, insured shipping from Minnesota. Free 30-day returns. Item is carefully packaged for safe delivery.