Permanent magnet variable frequency

In very good condition. 50kg monster. Specifications Revel Performa B15 powered subwoofer in sealed cabinet of 1″-thick MDF Driver: 15″ Kevlar-pulp-and-alloy composite cone, 130oz magnet assembly, 4-layer voice coil with 3″ of peak-to-peak travel, cast aluminum frame Frequency response: 20-80Hz, +/-0.5dB; –3dB at 18Hz Inputs b'&' outputs: XLR (balanced), RCA (single-ended) Amplifier:1000W RMS Highpass filter: 30–80Hz, 12 or 24dB/octave Lowpass filter: 30–80Hz, 24 or 48dB/octave (defeatable) Phase: continuously variable, 0–180° Other: 3-band parametric equalizer, RCA and XLR pass-through outputs for looping to another B15 Weight: 105 lbs Dimensions: 20.2″ x 20.1″ x 19.6″ (WxHxD) Finishes: black ash; add $300 for natural cherry or maple Price: $2995. if add is up, it is available.