500 Watts RMS continuous, 1000 Watts program, 2000 Watts peak.4 Ohms.15'' (381mm) BlackWidow® sub woofer, cast frame with field-replaceable basket.Frequency response: 60 Hz - 300 Hz.Efficiency: 99dB.Three Neutrik® Speakon® connectors (one bi-amp and two for full-range operation).Bi-amp or full-range operation with mid/high frequency output (passive cross-over).Black Hammer Head polyurea coating.Reversible foam/metal grille allowing 2 different facias.Satellite pole mounting. Lightweight poplar plywood construction.Made in the UK.Dimensions (HxWxD): 25" (635 mm) x 22.4" (570 mm) x 19.9" (505 mm)Weight: 55.1 lbs (25 kg)