The SUB 8005-AS is on of the most powerful 21” subwoofers in pro-sound category.Featuring a high power, hypervented 21” woofer, with 4.5” inside/outside voice coils, this cabinet is designed to deliver a serious amount of low frequency. Powered by a 2500W digital amplifier module, the SUB 8005-AS can perform in the most demanding situations. The input board includes volume control, deep/punch switch, high pass switch, phase switch, cardioid, time delay.Features2500 Watt Peak, 1250 Wat RMS137 dB max SPL27 Hz - 120 Hz frequency response21" Woofer, 4.5" voice coil vented wooferDSP controlled Input section with selectable presetsDelay controlBaltic birch tour grade cabinetCompatible with NXL23-A (stacking)Compatible with NXL24-A (stacking)Multiple configurations with HDL 10-A and HDL 20-AAcoustical Specifications Frequency Response -3 dB: 27 Hz ÷ 120 HzMax SPL: 137 dBWoofer: 21", 4.5" v.c. Input/Output Section Input signal: bal/unbalInput connectors: XLROutput connectors: XLRInput sensitivity: -2 dBu / +4 dBu Processor Section Crossover frequencies: Selectable 90 Hz - 120 Hz HzProtections: Thermal, RMSLimiter: Fast limiterControls: Xover, Phase switch, Deep/Punch, Output Delay Settings, Cardioid Amplifier Specifications Total power: 2500 W PEAK Low frequencies: 2500 W PEAKTotal power: 1250 W RMS Low frequencies: 1250 W RMSCooling: ConvectionConnections: Powercon in-out CabinetCabinet Material: Baltic BirchHardware: 2xM20, 4 x wheels mounting pointsHandles: 2 sideColour: Black Physical Specifications Height: 825 / 32.48 mm/inchWidth: 600 / 23.62 mm/inchDepth: 805 / 31.69 mm/inchNet Weight: 66.6 / 146.8 kg/lbs.