D&B Audiotechnik Z0610.002 B4 15-Inch/12-Inch NLT4F/M Dual Passive Subwoofer
Get ready to experience mind-blowing bass! The B4-SUB is an actively driven cardioid subwoofer that packs a punch. Here's why you need it:
- • Cardioid Dispersion: Say goodbye to unwanted low-frequency energy! This innovative design reduces reverberation, delivering crystal-clear bass reproduction.
- • High SPLmax: With a max SPL of 131 dB, feel the power of the music like never before. It can handle even the most intense audio.
- • Versatile Setup: Use it in a ground stacked setup for a seamless audio experience. Its marine plywood construction, impact and weather resistant finish, and handles make it easy to use and transport.
The B4-SUB features a 15' driver in bass-reflex design facing forward and a 12' driver in two chamber bandpass design radiating to the rear. It's powered by a single amplifier channel and can only be used in a ground stacked setup. The cabinet is made of marine plywood, has an impact and weather resistant paint finish, and comes with a pair of handles. It also has an M20 threaded flange in the top panel for the d&b Loudspeaker stand winder M20. The cabinet is available in Special Colour (SC) options.
The cabinet is fitted with NLT4 F/M connectors. All four pins of both connectors are wired in parallel. It uses the pin assignments 2+/2–. Pins 1+/1– are designated to TOP cabinets. Using one as the input, the second connector allows for direct connection to a second cabinet.
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 Ω
- Power handling capacity (RMS/peak 10 ms): 500/2000 W
- Components: 15' / 12' driver
- Connections: 2 x NLT4 F/M
- 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

Use this subwoofer for live events, concerts, or any venue where you want to enhance the bass. Ideal for audio professionals and enthusiasts. Dimensions: 476 x 580 x 700/800 mm (18.7 x 22.8 x 27.73 / 31.6'), Weight: 44 kg / 97 lb.