PRV Audio 21SW4000 High Power Pro Audio 21in  subwoofer

The PRV Audio 21SW4000 21" Pro Audio Subwoofer

The 21SW4000 is the largest and most powerful loudspeaker in the SW series from PRV Audio. The 21SW4000 features a specially designed force air ventilation system to ensure proper cooling of the massive 6" voice coil for long hard play. The Dual spider and M-roll surround offer precise movement along its incredible 14mm Xmax.

The upgraded and advanced voice coil and cone material along with its ability to reproduce extremely low frequencies will make this your woofer of choice for systems requiring incredible bass. The massive motor assembly is attached to a heavyweight cast aluminum frame with screws for increased reliability in rough environments.

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Technical Data

Model 21SW4000  
Diameter 21 in
Impedance 8 Ω
RMS Power 2000 Wrms
Program Power 4000 W
Sensitivity 98 dB_SPL
Freq Response 33-1k @-10fdBHZ
Xmax 16 mm
Res Freq (FS) 32.3 Hz
Equiv Vol (Vas) 207.6 L
Elec Q (Qes) .279  
Mech Q (Qms) 13.918  
Total Q (Qts) .274  
Sd: Cone Area 1661 CM2
Mms: 520.9 g
Strength Factor 27.33 Tm
RE 4.4 Ω
VC Diameter 6 in
Weight 65 Lbs
Overall Diam. 545/21.4 mm/in
Hole Cutout 491/19.3 mm/in
Mounting Depth 203/8 mm/in
Frame Cast Aluminum
Magnet Ferrite  
Voice Coil Copper  
VC Former Fiberglass  

Related Information

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Technical data sheets and product images may be downloaded here. Specifications are subject to change, please check back often for update information.

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