SWA15      Large 15" 600W woofer       Built-in low pass filter       Covered with damping carpet         Deep resonance-free bass     Protective corners and large handles           Tophat in top panel Peakpower:600W         Power max:300W      Impedance: 8 Ohms         Frequency response:30Hz-300Hz      SPL@1W/1m:89dB          SPL max:117dB      Woofer:15 inch      Dimensions:375x480x570mm

SWA18       Large 18" 1000W woofer    Built-in low pass filter       Covered with damping carpet          Deep resonance-free bass        Protective corners and large handles        Tophat in top panel Peakpower:1000W        Power max:500W      Impedance: 8 Ohms         Frequency response:20Hz-300Hz        SPL@1W/1m:89dB          SPL max:119dB Woofer:18 inch          Dimensions:445x565x655mm

SMWBA15          Bi-Amplifier Subwoofer        300W Active Subwoofer       2 X150W Integrated full range amplifer for       connecting wide range tops        Stereo line inputs(with loop through function Microphone input with Echo       Total Output power：1x300W&2x150W       Speaker output impedance:8 Ohms satellite       Frequency range SUB:20-200Hz      Frequency range TOPS:40-20kHz    Woofer:15"         Connector Input:Mic,6.35mm jack,Stereo RCA            Connector Output:2xNL2,stereo RCA            Dimensions:410x495x600mm

SMWBA18         Bi-Amplifier Subwoofer         500W Active Subwoofer         2 X250W Integrated full range amplifer for         connecting wide range tops         Stereo line inputs(with loop through function Microphone input with Echo       Total Output power：1x500W&2x250W         Speaker output impedance:8 Ohms satellite        Frequency range SUB:20-200Hz       Frequency range TOPS:40-20kHz Woofer:18"         Connector Input:Mic,6.35mm jack,Stereo RCA          Connector Output:2xNL2,stereo RCA            Dimensions:410x550x600mm