B&C Speaker 8NDL51

Name: 8NDL51
Brand: B&C Speaker

4Ω

8Ω 16Ω

Woofer

8″ / 200 mm

Nominal diameter

75 Hz

Resonance

0.57

Q factor

91 dB

Sensitivity

± 7 mm

Linear excursion

400 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 90.6; dB
Frequency response: 75 - 3000; Hz
Resonance frequency (free air)
f_S: 75.0; Hz
Mechanical quality factor
Q_MS: 5.22
Electrical quality factor
Q_ES: 0.64
Total quality factor
Q_TS: 0.57
Maximum linear excursion
x_max: 7.0; mm
Air volume displaced at x_max
V_D: 154; cm³
Power handling
P: 200; W
Program power
P_max: 400; W
Nominal impedance
Z: 4; Ω
DC resistance
R_E: 2.6; Ω
Inductance (1kHz)
L_E: 0.15; mH
VC Diameter: 51; mm
Winding height
H_VC: 16; mm
Winding material: Copper
Former material: Glass Fibre
Flux density
B: 1.05; T
Force factor
Bl: 7.3; N/A
Motor constant
Bl/√R_E: 4.53; N/√W
Air gap height
H_AG: 8; mm
Material: Neodymium Inside Slug
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: 6.17; N/mm
Compliance
C_MS: 162; µm/N
Equivalent volume to the compliance
V_AS: 10.1; L
Mechanical resistance
R_MS: 2.44; N·s/m
Nominal diameter: 8; ″
: 200; mm
Overall diameter: 225; mm
Baffle cutout diameter: 187; mm
Overall depth: 90; mm
Flange thickness: 11; mm
Mounting depth: 79; mm
Volume occupied by the driver: 1.1; L
Net weight: 1.85; kg

Datasheet

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B&C Speaker 8NDL51

Woofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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