The SUB 8004-AS is one of the most powerful 18” subwoofers in pro-sound category. Featuring a high power, hypervented 18” woofer, with 4” inside/outside voice coils, this cabinet is designed to deliver a serious amount of low frequency. Powered by a 1250W digital amplifier module, the SUB 8004-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 RMS136 dB max SPL30 Hz - 120 Hz frequency response18" Woofer, 4.0" 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 SpecificationsFrequency Response -3 dB: 30 Hz ÷ 120 HzMax SPL: 136 dBWoofer: 18", 4.0" v.c. Input/Output SectionInput signal: bal/unbalInput connectors: XLROutput connectors: XLRInput sensitivity: -2 dBu / +4 dBu Processor SectionCrossover frequencies: Selectable 90 Hz - 120 Hz HzProtections: Thermal, RMSLimiter: Fast limiterControls: Xover, Phase switch, Deep/Punch, Output Delay Settings, Cardioid Amplifier SpecificationsTotal power: 2500 W PEAKLow frequencies: 2500 W PEAKTotal power: 1250 W RMSLow frequencies: 1250 W RMSCooling: ConvectionConnections: Powercon in-out CabinetCabinet Material: Baltic BirchHardware: 2xM20, 4 x wheels mounting pointsHandles: 2 sideColour: Black Physical SpecificationsHeight: 700 / 27.56 mm/inchWidth: 557.5 / 21.95 mm/inchDepth: 700 / 27.56 mm/inchNet Weight: 51.0 / 112.20 kg/lbs.