B&C Speaker 21SW152

Name: 21SW152
Brand: B&C Speaker

4Ω

8Ω

Subwoofer

21″ / 530 mm

Nominal diameter

32 Hz

Resonance

0.36

Q factor

94 dB

Sensitivity

± 15 mm

Linear excursion

4000 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 94.4; dB
Frequency response: 30 - 1000; Hz
Resonance frequency (free air)
f_S: 32.0; Hz
Mechanical quality factor
Q_MS: 6.40
Electrical quality factor
Q_ES: 0.38
Total quality factor
Q_TS: 0.36
Maximum linear excursion
x_max: 15.0; mm
Air volume displaced at x_max
V_D: 2520; cm³
Power handling
P: 2000; W
Program power
P_max: 4000; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 6.0; Ω
Inductance (1kHz)
L_E: 2.2; mH
VC Diameter: 153; mm
Winding height
H_VC: 32; mm
Winding material: Copper
Former material: Glass Fibre
Flux density
B: 1.2; T
Force factor
Bl: 39.0; N/A
Motor constant
Bl/√R_E: 15.9; N/√W
Air gap height
H_AG: 12; mm
Material: Neodymium Inside Slug
Effective diameter: 462; mm
Effective area
S_D: 1680; cm²
Moving mass
M_MS: 450; g
Moving mass (without air load)
M_MD: 401.8; g
Material: Waterproof Both Sides
Stiffness
K_MS: 19.23; N/mm
Compliance
C_MS: 52; µm/N
Equivalent volume to the compliance
V_AS: 200; L
Mechanical resistance
R_MS: 14.14; N·s/m
Spider material: Silicone
Nominal diameter: 21; ″
: 530; mm
Overall diameter: 547; mm
Baffle cutout diameter: 508; mm
Overall depth: 261; mm
Flange thickness: 16; mm
Mounting depth: 245; mm
Volume occupied by the driver: 16.0; L
Net weight: 18.5; kg

Datasheet

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B&C Speaker 21SW152

Subwoofer

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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