Powered subwoofer with auxiliary bass radiator, built-in parametric equalizer, and optional installation software. Drive-unit: 18" ultra-rigid cone of Kevlar, pulp, and alloy composite with inverted metal dome, 15" piston diameter, 3" diameter, four-layer voice-coil, and 4.7kg magnet system. Auxiliary bass radiator: 15" metal cone. Inputs: L/R balanced (XLR), unbalanced (RCA). Line-level outputs: L/R balanced (XLR), unbalanced (RCA). High-pass filter: 30-80Hz, variable in 10Hz increments at 12 or 24dB/octave (nondefeatable). Low-pass filter: 30-80Hz, variable in 10Hz increments, at 24 or 48dB/octave slope (defeatable). Equalizer: 3 independent parametric equalizers, each continuously variable from 18Hz to 80Hz, each bandwidth continuously variable from 0.1 to 1.0 octave, level continuously variable from -14dB to 6dB. Power switch selects Automatic (signal sensing) or 12V DC trigger-controlled operation. Trigger inputs: Power connectors for triggering system power on when 12V DC is applied; Music/Film connectors for triggering Contour to Film EQ when 12V DC is applied to terminals. Frequency response: 20-80Hz, -3dB at 18Hz. Total harmonic distortion: not given. Phase: 0-180 degrees, continuously variable. Built-in amplifier: class-AB, 1kW RMS (1.4kW peak). Peak output level: 126dB at 30Hz. Supplied accessories: power cord, Allen wrench (to change side panels), CD with test signals.Dimensions: 23.25" (596mm) H by 20" (513mm) W by 23.75" (609mm) D. Volume: 275 in3. Weight: 147 lbs (66.8kg).
Subwoofer is in perfect shape, it has aluminium side panels.
Also for sale I have the Revel Ultima Gem on audiogon. The best would be local pick-up due to the fact that it's very heavy, but if I will need to send it I will do it.