BMS 12C262

Name: 12C262
Brand: BMS

Coaxial

12″ / 318 mm

Nominal diameter

47 Hz

Resonance

0.24

Q factor

95 dB

Sensitivity

± 2.5 mm

Linear excursion

800 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.4; dB
Frequency response: 55 - 2000; Hz
Resonance frequency (free air)
f_S: 47.3; Hz
Mechanical quality factor
Q_MS: 5.40
Electrical quality factor
Q_ES: 0.25
Total quality factor
Q_TS: 0.24
Maximum linear excursion
x_max: 2.5; mm
Air volume displaced at x_max
V_D: 122; cm³
Power handling
P: 400; W
Program power
P_max: 800; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.7; Ω
Inductance (1kHz, estimated)
L_E: 0.98; mH
VC Diameter: 77; mm
Winding height
H_VC: 15; mm
Winding material: Copper
Former material: Kapton
Flux density
B: 1.9; T
Force factor
Bl: 20.6; N/A
Motor constant
Bl/√R_E: 8.63; N/√W
Air gap height
H_AG: 10; mm
Material: Ceramic
Effective diameter: 249; mm
Effective area
S_D: 487; cm²
Moving mass
M_MS: 63; g
Moving mass (without air load)
M_MD: 55; g
Material: Polyester
Stiffness
K_MS: 5.56; N/mm
Compliance
C_MS: 180; µm/N
Equivalent volume to the compliance
V_AS: 60.6; L
Mechanical resistance
R_MS: 3.47; N·s/m
Nominal diameter: 12; ″
: 318; mm
Overall diameter: 318; mm
Baffle cutout diameter: 284; mm
Overall depth: 179; mm
Volume occupied by the driver (estimated): 3.7; L
Net weight: 7.8; kg
Frame material: Cast Aluminum

Datasheet

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BMS 12C262

Coaxial

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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