2000 Watt Peak power - 1000 Watt RMS, 135 dB max SPL, 30 Hz - 140 Hz frequency response, 1 x 18" Woofer, DSP controlled Input section with selectable presets, Tour grade safe and solid variable mechanics, compatible with HDL 20-A, Designed to compliment the HDL 20-A speaker system, Baltic birch tour grade cabinet