The B4-SUB is an passive driven cardioid subwoofer. It houses two long excursion neodymium drivers in an integrated cardioid setup: a 15″ driver in a bass-reflex design facing to the front and a 12″ driver in a two chamber bandpass design radiating to the rear. 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. The B4 subwoofer can only be used in a ground stacked setup. The B4-SUB cabinet is constructed from marine plywood, has an impact and weather resistant paint finish and a pair of handles.

No. of Drivers & Size: single 15-inch reflex; single 12-inch band-pass rear

Frequency Resp. (-3 dB): 40 Hz

Rated Power: 500 Watts RMS

Nominal impedance: 6 Ohms, single channel

Maximum SPL: 131 dB peak with d&b D12 amp

Dimensions (HxWxD): 19 x 23 x 28 inches

Weight: 97 pounds

Price: Daily: £42.00 Weekly: £126.00

Prices shown are trade prices, subject to change.