PRV Audio 21SW4000-NDY-2

Name: 21SW4000-NDY-2
Brand: PRV Audio

Subwoofer

21″ / 547 mm

Nominal diameter

31 Hz

Resonance

0.28

Q factor

96 dB

Sensitivity

± 15 mm

Linear excursion

4000 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 95.9; dB
Frequency response: 35 - 1200; Hz
Resonance frequency (free air)
f_S: 30.8; Hz
Mechanical quality factor
Q_MS: 12.33
Electrical quality factor
Q_ES: 0.28
Total quality factor
Q_TS: 0.28
Maximum linear excursion
x_max: 15.0; mm
Air volume displaced at x_max
V_D: 2886; cm³
Power handling
P: 2000; W
Program power
P_max: 4000; W
Nominal impedance
Z: 2; Ω
DC resistance
R_E: 1.8; Ω
Inductance (1kHz)
L_E: 1.14; mH
VC Diameter: 135; mm
Winding height
H_VC: 39; mm
Winding material: Copper
Former material: Glass Fiber
Force factor
Bl: 24.36; N/A
Motor constant
Bl/√R_E: 18.2; N/√W
Air gap height
H_AG: 18; mm
Material: Neodymium
Effective diameter: 495; mm
Effective area
S_D: 1924; cm²
Moving mass
M_MS: 485; g
Moving mass (without air load)
M_MD: 429.7; g
Stiffness
K_MS: 18.18; N/mm
Compliance
C_MS: 55; µm/N
Equivalent volume to the compliance
V_AS: 285; L
Mechanical resistance
R_MS: 7.61; N·s/m
Nominal diameter: 21; ″
: 547; mm
Overall diameter: 547; mm
Baffle cutout diameter: 508; mm
Overall depth: 265; mm
Flange thickness: 20; mm
Mounting depth: 245; mm
Volume occupied by the driver (estimated): 9.6; L
Net weight: 13.7; kg
Frame material: Die Cast Aluminum

Datasheet

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PRV Audio 21SW4000-NDY-2

Subwoofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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