1000-watt RMS, 2000-watt Dynamic Power amp, 8" Kevlar reinforced driver, sealed 10.4" x 10.9" x 12.8" enclosure. 28-120 Hz frequency response +/- 3 dB, weight 33 lbs. Excellent cosmetic condition and operates perfectly. I purchased this sub new in 2009 and have been the only user as a component of my home hi-fi music system.