PowerBass M-1504D

2x4Ω

Subwoofer

15″ / 381 mm

Nominal diameter

23 Hz

Resonance

0.59

Q factor

88 dB

Sensitivity

± 11 mm

Linear excursion

850 W

Program Power

PowerBass M-1504D Subwoofer

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 88.0; dB
Frequency response: 22 - 400; Hz
Resonance frequency (free air)
f_S: 23.0; Hz
Mechanical quality factor
Q_MS: 3.37
Electrical quality factor
Q_ES: 0.59
Total quality factor
Q_TS: 0.59
Maximum linear excursion
x_max: 11.0; mm
Air volume displaced at x_max
V_D: 857; cm³
Power handling
P: 425; W
Program power
P_max: 850; W
Nominal impedance
Z: 2 x 4; Ω
DC resistance (in series)
R_E: 6.4; Ω
Inductance (1kHz, in series, estimated)
L_E: 2.52; mH
VC Diameter: 64; mm
Force factor (in series)
Bl: 21.6; N/A
Motor constant
Bl/√R_E: 8.54; N/√W
Weight: 6.24; kg
Effective diameter: 315; mm
Effective area
S_D: 779; cm²
Moving mass
M_MS: 240; g
Moving mass (without air load)
M_MD: 224.5; g
Material: Non Pressed Paper
Stiffness
K_MS: 5.97; N/mm
Compliance
C_MS: 167; µm/N
Equivalent volume to the compliance
V_AS: 144; L
Mechanical resistance
R_MS: 10.29; N·s/m
Nominal diameter: 15; ″
: 381; mm
Baffle cutout diameter: 355; mm
Mounting depth: 165; mm
Volume occupied by the driver (estimated): 4.3; L

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