B&C Speaker 8FW51

Name: 8FW51
Brand: B&C Speaker

Mid Bass

8″ / 200 mm

Nominal diameter

74 Hz

Resonance

0.21

Q factor

95 dB

Sensitivity

± 6 mm

Linear excursion

400 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.2; dB
Frequency response: 70 - 5000; Hz
Resonance frequency (free air)
f_S: 74.0; Hz
Mechanical quality factor
Q_MS: 9.30
Electrical quality factor
Q_ES: 0.21
Total quality factor
Q_TS: 0.21
Maximum linear excursion
x_max: 6.0; mm
Air volume displaced at x_max
V_D: 132; cm³
Power handling
P: 200; W
Program power
P_max: 400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.2; Ω
Inductance (1kHz)
L_E: 0.56; mH
VC Diameter: 51; mm
Winding height
H_VC: 17; mm
Winding material: Copper
Former material: Kapton
Flux density
B: 1.35; T
Force factor
Bl: 17.7; N/A
Motor constant
Bl/√R_E: 7.76; N/√W
Air gap height
H_AG: 10; mm
Material: Ferrite
Effective diameter: 167; mm
Effective area
S_D: 220; cm²
Moving mass
M_MS: 27; g
Moving mass (without air load)
M_MD: 24.5; g
Material: Waterproof Both Sides
Stiffness
K_MS: 5.88; N/mm
Compliance
C_MS: 170; µm/N
Equivalent volume to the compliance
V_AS: 12; L
Mechanical resistance
R_MS: 1.35; N·s/m
Nominal diameter: 8; ″
: 200; mm
Overall diameter: 225; mm
Baffle cutout diameter: 187; mm
Overall depth: 100; mm
Flange thickness: 9; mm
Mounting depth: 91; mm
Volume occupied by the driver: 1.5; L
Net weight: 5.6; kg

Datasheet

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B&C Speaker 8FW51

Mid Bass

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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