The B4 subwoofer

The B4 subwoofer
MVISION
tel: +33 1 42 53 35 00
www.mvision.fr
B4 subwoofer
The B4-SUB is an actively driven cardioid subwoofer powered by
a single amplifier channel. 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 configuration.
The B4-SUB cabinet is constructed from marine plywood and 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 front of the loudspeaker
cabinet is protected by a rigid metal grill in front of an acoustically
transparent foam. Two runners extend from the rear to the front
panel of the cabinet protecting the bottom panel against scratching.
Two correspondingly shaped recesses are incorporated in the top
panel of each cabinet that accept these runners to prevent cabinet
movement when stacked. Mounted on the rear panel are four
heavy duty wheels.
476 [18.74"]
The B4 subwoofer
580 [22.84"]
700 [27.65"]
800 [31.61"]
B4-SUB cabinet dimensions in mm (inch)
90
120
60
150
30
0
180
330
210
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................................................................................... 128 dB
with D12................................................................................ 131 dB
Loudspeaker data
Nominal impedance...............................................................6 ohms
Power handling capacity (RMS/peak 10 ms)..........500/2000 W
Components........................................................................................
Front/Rear................................................................. 15”/12” driver
Connection................................2 x EP5, 2 x NL4 or 2 x NLT4 F/M
Pin assignments...................................................................................
EP5......................................................................3/4, SenseDrive: 5
NL4 and NLT4 F/M................................................................ 2+/2–
Weight.......................................................................... 44 kg (97 lb)
1
240
300
270
Cardioid polar pattern
E7922
B4-SUB Wooden lid
Broadband measurement, pink noise, crest factor 4, peak measurement, linear weighting
MVISION
tel: +33 1 42 53 35 00 / fax: 01 42 53 37 46 - 43 rue des Carnets, 92140 CLAMART
d&b T-Series 11
www.mvision.fr
MVISION
tel: +33 1 42 53 35 00
www.mvision.fr
The T-Series rigging and mounting examples
T10/T-SUB or Ti10L/Ti-SUB
line array with
Z5370 T Flying frame
Z5147 Rota clamp
T10 or Ti10L line array with
Z5370 T Flying frame
Z5155 Q Hoist connector chain
E6507 1t Shackle
Ti10L line array with
Z5374 Ti Flying bar
E6507 1t Shackle
3 x T10 or Ti10L line array with
Z5373 T Cluster bracket
Z5010 TV spigot with fixing plate
Z5012 Pipe clamp for TV spigot
T10 point source or Ti10P with
Z5371 T Flying bracket
Z5010 TV spigot with fixing plate
Z5012 Pipe clamp for TV spigot
T10 point source or Ti10P with
Z5372 T Horizontal bracket
Z5010 TV spigot with fixing plate
T10/T-SUB or Ti10L/Ti-SUB
ground stack
T10/B4-SUB ground stack with
Z5375 T Base plate
T10 or Ti10L line array
on Q-SUB with
Z5373 T Cluster bracket
Z5013 Loudspeaker stand winder M20
Z5024 Loudspeaker stand adapter
T10 point source or Ti10P
as vertical array with
Z5354 E8/E12 Flying adapter
Z5355 E8/E12 Flying adapter link
Z5015 TV spigot 02
T10 point source or Ti10P
on E15X-SUB with
Z5371 T Flying bracket
Z5013 Loudspeaker stand winder M20
Z5024 Loudspeaker stand adapter
MVISION
tel: +33 1 42 53 35 00 / fax: 01 42 53 37 46 - 43 rue des Carnets, 92140 CLAMART
d&b T-Series 13
www.mvision.fr
MVISION
tel: +33 1 42 53 35 00
www.mvision.fr
The T-Series configuration examples
T10
Ti10P
SUB
D6D6
T10 in point source orientation or Ti10P loudspeaker on a subwoofer with
D6 amplifier in dual channel mode
T10
Ti10L
T10
Ti10L
T10
Ti10L
B4-SUB
D12
T10 or Ti10L line array on B4-SUB with D12 amplifier in Mix TOP/SUB mode
22 d&b T-Series
MVISION
tel: +33 1 42 53 35 00 / fax: 01 42 53 37 46 - 43 rue des Carnets, 92140 CLAMART
www.mvision.fr
MVISION
tel: +33 1 42 53 35 00
www.mvision.fr
The T-Series configuration examples
D12
T10
Ti10L
T-SUB
Ti-SUB
T10
Ti10L
Z2293
T10
Ti10L
T10
Ti10L
T10
Ti10L
T10
Ti10L
A
T10
Ti10L
Z2292
T10
Ti10L
B
T10
Ti10L
T10/T-SUB or Ti10L/Ti-SUB flown line array with D12 amplifier
in Mix TOP/SUB mode
T10
Ti10P
B4-SUB
Z2292
A
D12
B
B4-SUB
D12
T10 or Ti10L flown line array with D12 amplifier in dual channel mode and T10 point source
or Ti10P on B4-SUBs ground stacked with D12 amplifier in Mix TOP/SUB mode
MVISION
tel: +33 1 42 53 35 00 / fax: 01 42 53 37 46 - 43 rue des Carnets, 92140 CLAMART
d&b T-Series 23
www.mvision.fr
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