Description
B4 subwoofer 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. An M20 threaded flange in the top panel accepts the d&b Loudspeaker stand winder M20. The loudspeaker cabinet is also available in Special Colour (SC) options.
System data
- Frequency response (–5 dB standard)40 – 150 Hz
- Frequency response (–5 dB 100 Hz mode)40 – 100 Hz
- Max sound pressure (1 m, free field)1
- with D6/10D 128 dB
- with D12/D20/30D 131 dB
- with D80 131 dB
Loudspeaker data
- Nominal impedance 6 ohms
- Power handling capacity (RMS/peak 10 msec) 500/2000 W
- Components Front/Rear 15″/12″ driver
- Connections 2 x NLT4 F/M optional 2 x EP5 or 2 x NL4
- Weight 44 kg (97 lb)
More Information
For more information, including drawings and documentation, please click here.
