12" 400W High Power Sub Woofer 230v 

400-Watt 12" (300mm) Powered Subwoofer
 
Highlights 
Powerful, front-firing powered subwoofer
300mm (12") Low-frequency transducer
400-Watts-RMS high-output, high-efficiency amplifier
High-quality cabinet with beautifully polished high-gloss-ebony wood panels
Metal spikes and coasters are supplied
Key Specifications 
300mm (12") Low-frequency transducer 
400-Watts-RMS high-output, high-efficiency amplifier for thunderous deep-bass extension without breakup or distortion, even at high listening levels
High-quality cabinet
Beautifully polished high-gloss-ebony wood panels
Switchable LFE input
Adjustable low-pass crossover
Phase switch allows subwoofer to operate with normal or reverse polarity
Subwoofer-level control to conveniently adjust the relative volume level of low frequencies
Tuned-port bass enclosure extends low-frequency response and increases overall efficiency of the bass driver, reducing distortion and improving its power-handling capacity
Metal spikes and coasters are supplied