1. SONY like no other a XS L81 BP5 This document was created on 07 Sep 2006 http www sony co uk Passive Subwoofer Box a Se Features Please be aware that the features specifications can differ from country to country e Passive Subwoofer box system 13 litre e Maximum input power 800W e Rated input power 220W e Frequency response 30 500Hz e Sensitivity 80dB W m at 60 Hz e 20 cm subwoofer with pentagonal polypropylene cone a Technical Specifications Subwoofer Chassis Size cm 20 0 Size inch 8 0 Enclosure Type YES Dual Voice Coil NO Useful Links Subwoofer Enclosure Box Type YES http www sony co uk Sealed Enclosure Volume l 13 0 General Specification Peak Power W 800 0 Rated Power W 200 0 Impedance ohm 4 Frequency Response Hz 30 500 Sensitivity dB W m 80 0 Diaphragm Material Injected Polypropylene Magnet Material Ferrite Thiele amp Small Parameter Impedance ohm 4 a