d&b audiotechnik B4-Sub Subwoofer
The B4-Sub is an actively driven cardioid subwoofer designed for precise LF control using a single amplifier channel. It features two high-performance neodymium drivers: a 15″ bass-reflex driver projecting forward and a 12″ two-chamber bandpass driver radiating to the rear.
The B4-Sub is available with NL4 Connections or NLT4 F/M Connections.
Features:
- Components 15″/12″
- Dispersion Cardioid
- SPLmax 131 dB
- Weight 44 kg / 97 lb
Specifications:
- System data:
- Frequency response (-5 dB standard): 40 – 150 Hz
- Frequency response (-5 dB 100 Hz mode): 40 – 100 Hz
- Max. sound pressure:
- with 10D: 128 dB
- with D20/30D: 131 dB
- with D40/D80/40D: 131 dB
- Cabinets per amplifier channel: 2
- Loudspeaker data:
- Configuration: Cardioid subwoofer
- Nominal impedance: 6
- Power handling capacity (RMS/peak 10 ms): 500/2000 W
- Components: 15″ / 12″ driver
- Connections: 2 x NL4
- Dimensions / weight:
- Dimensions (H x W x D): 476 x 580 x 700/ 800 mm (18.7 x 22.8 x 27.73 / 31.6″)
- Weight: 44 kg / 97 lb
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