d&b audiotechnik Bi6 Subwoofer


The Bi6-SUB is a high performance subwoofer designed for ground stacked applications, housing a long excursion 18” driver built into a bass-reflex design. The Bi6-SUB is the installation version of the B6 subwoofer and differs only in cabinet construction, finish and mounting hardware. When three or any multiple of three B6-SUBs are used, they can be positioned in a Cardioid Subwoofer Array with one cabinet physically facing backwards and driven by an amplifier channel with CSA mode selected. This achieves exceptional directivity control in lower frequencies and significantly reduces the energy radiating towards to the rear. The cabinet is constructed from marine plywood and has an impact resistant paint finish, whilst Weather Resistant and Special Colour options are available. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam.

System data

Frequency response (–5 dB standard) 37 Hz – 140 Hz
Frequency response (-5 dB 100 Hz mode) 37 Hz – 110 Hz
Frequency response (–5 dB INFRA mode) 35 Hz – 80 Hz
Max. sound pressure (1m, free field)1
with D6/10D
with D20/30D
with D80 128 dB
131 dB
134 dB
Cabinets per amplifier channel 2
Loudspeaker data
Configuration Installation specific high performance subwoofer
Nominal impedance 8 Ω
Power handling capacity (RMS/peak 10 ms) 500/2000 W
Components 1 x 18″ driver
Connections 2 x NL4
screw terminal block

Dimensions, weight

Dimensions (H x W x D) 490 x 580 x 700 mm
19.3 x 22.8 x 27.5″
Weight 38 kg
84 lb

Additional information

Weight 84 lbs
Dimensions 28 × 23 × 20 in