DB Drive WDX8G2.2

2x2Ω

Subwoofer

8″ / 203 mm

Nominal diameter

46 Hz

Resonance

0.45

Q factor

81 dB

Sensitivity

± 13 mm

Linear excursion

1500 W

Program Power

DB Drive WDX8G2.2 Subwoofer

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 81.4; dB
Resonance frequency (free air)
f_S: 45.5; Hz
Mechanical quality factor
Q_MS: 2.70
Electrical quality factor
Q_ES: 0.55
Total quality factor
Q_TS: 0.45
Maximum linear excursion
x_max: 13.0; mm
Air volume displaced at x_max
V_D: 281; cm³
Power handling
P: 750; W
Program power
P_max: 1500; W
Nominal impedance
Z: 2 x 2; Ω
DC resistance (in series)
R_E: 3.7; Ω
Inductance (1kHz, in series, estimated)
L_E: 1.13; mH
VC Diameter: 64; mm
Former material: Anodized aluminum
Force factor (in series)
Bl: 17.68; N/A
Motor constant
Bl/√R_E: 9.19; N/√W
Effective diameter: 166; mm
Effective area
S_D: 216; cm²
Moving mass
M_MS: 159.8; g
Moving mass (without air load)
M_MD: 157.3; g
Material: Non-Pressed paper
Stiffness
K_MS: 13.16; N/mm
Compliance
C_MS: 76; µm/N
Equivalent volume to the compliance
V_AS: 5.03; L
Mechanical resistance
R_MS: 16.92; N·s/m
Surround material: Foam
Nominal diameter: 8; ″
: 203; mm
Overall diameter: 223; mm
Baffle cutout diameter: 186; mm
Mounting depth: 160; mm
Volume occupied by the driver (estimated): 1.1; L
Frame material: Aluminium

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f_S: 47 Hz
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