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<h4>Link to..</h4><h1>
<a href="http://www.dbaudio.com/en/systems/category/series/detail/loudspeakers/t-series/b4-subwoofer.html" target="_self" title="Click to view d&b audiotechnik B4-Sub Loudspeaker">
d&b audiotechnik B4-Sub Loudspeaker
</a></h1><p>
The d&b audiotechnik B4-SUB is a cardioid subwoofer comprising 2x long excursion neodymium drivers, a 15" driver and a 12" driver in bandpass design radiating to the rear.
</p><p>The cardioid dispersion pattern resulting from this approach avoids unwanted energy behind the system that greatly reduces the reverberant field at low frequencies and provides the greatest accuracy of low frequency reproduction.
</p><p>The B4 subwoofer can only be used in a ground stacked setup.
</p><p>The B4-SUB cabinet is constructed from marine plywood, has an impact and weather resistant paint finish and a pair of handles. An M20 threaded flange in the top panel accepts the d&b Loudspeaker stand winder M20.
</p><p>The loudspeaker cabinet is also available in Special Colour (SC) options.
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<ul><li>15" & 12" drivers
</li><li>Frequency response 44~140Hz
</li><li>Maximum SPL 131db@1m
</li><li>Power capacity 500w continuous 2000w peak
</li><li>Dimensions 620mm476x580x700mm
</li><li>Weight 44kg
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