PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
PRV Audio 21SW4000-NDY-2 – Special Reinforced 21
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PRV Audio

PRV Audio 21SW4000-NDY-2 – Special Reinforced 21" SUBWOOFER LOUDSPEAKER - REINFORCED CONE

$1,220.91
$1,199.91 In Stock Pre-Order Sold out
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1-4 DAYS DELIVERY

100% ORIGINAL AND QUALITY

24 MONTHS GUARANTEE

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A special reinforced model for car audio application.
The new 21SW4000-NDY-2 is an advanced, high-strength Neodymium subwoofer driver featuring a 5.3” inside/outside copper coil with an unique dual forced design ventilation system. This combination deliveries 2000 Watts RMS power handling and a minimum weight of 30.2 lbs. making this subwoofer an unique product in his category.

The combination of special treated carbon fiber loaded cone assembly, large triple roll surround and a double silicon spider gives the 21SW4000-NDY-2 remarkable strength and excursion control under its large 15 mm Xmax, 72 mm peak-to-peak excursion before damage.
Featuring a 2 ohms voice coil and unmatchable low frequency output with a fully optimized T-pole design, this 21” subwoofer creates a whole new category on its class!

Highlights
  • Nominal Impedance: 2 Ohms
  • Rated AES Power Handling (RMS): 2000 Watts
  • Program Power: 4000 Watts
  • Sensitivity (1W/1m): 97 dB
  • Voice Coil Diameter: 5.3″

Technical Details


GENERAL SPECIFICATIONS

Nominal Diameter 21″ (553 mm)
Nominal impedance 2 Ohms
Rated AES Power Handling (RMS) 2000 Watts
Program Power 4000 Watts
Sensitivity 1.41V at 1m 97 dB
Recommended Hi Pass Crossover**
**For Full Power Handling
45 Hz**
**12db Per Octave Crossover
Frequency Response at -10dB 35 – 1,200 Hz
Voice Coil Diameter 5.3″ (135 mm)
Voice Coil Wire Copper
Voice Coil Winding Depth 39.0 mm
Former Material Glass Fiber
Magnetic Gap Depth 18.0 mm
Frame Material Die Cast Aluminum

THIELE-SMALL PARAMETERS
Equivalent Volume Vas 284.7 l
Excursion (mathematical)*** Xmax 15.00 mm
Free Air Resonance Fs 30.8 Hz
Mechanical Factor Qms 12.33
Electrical Factor Qes 0.28
Total Factor Qts 0.28
Cone Area Sd 1924 cm²
Mechanical Mass Mms 485.0 g
Bl Factor Bl 24.36 Tm
Dc Resistance Re 1.8 Ohms
Inductance Le 1.14 mH at 1 kHz
Mechanical Mass Without Air Mmd 437.2 g
Mechanical Compliance Cms 0.055 mm/N

***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Mgnetic Gap Depth/4

EXTRA INFO
Overall Diameter 21.53” (547 mm)
Front Mount Baffle Cutout 20.0” (508 mm)
Mounting Depth 9.64” (245 mm)
Overall Depth 10.23” (265 mm)
Net Weight 30.2 Lbs (13.7 kg)
Shipping Weight 35.3 Lbs (16.0 kg)
Carton Dimensions W x L x H 23.2” x 22.4” x 10.8”
(590 x 570 x 275 mm)

30-Day Return Policy

At Fuego Bass Shop, we want you to be fully satisfied with your purchase. You can return most products within 30 days of delivery for a refund or exchange.

Please note: Any returns with physical damage or missing original packaging may incur a deduction.

Restocking Fee: A 15% restocking fee will be deducted from your refund to cover handling and restocking.

Refunds will be processed to your original payment method within 5–7 business days after we receive and inspect the returned item.

We ship within the United States (excludes recipients in Alaska, Hawaii, Puerto Rico, U.S. Virgin Islands, and Guam).

At Fuego Bass Shop, we understand the thrill of receiving your car audio equipment quickly. Our shipping process is designed to ensure your order arrives safe, fast, and ready to pump bass.

Most orders are processed within 1–2 business days. Standard shipping usually takes 3–7 business days depending on your location. Expedited shipping is available for select items during checkout.

Once your order is shipped, you will receive a tracking number via email so you can follow your gear every step of the way. Our packaging is designed to protect high-performance audio equipment from bumps, vibrations, and shocks during transit.

Please note: Delivery times may vary during holidays, promotions, or due to carrier delays. We highly recommend verifying your shipping address before completing checkout to avoid delays.

If you have any questions about your shipment or need assistance, our support team is ready to help. We want your experience with Fuego Bass Shop to be as powerful and smooth as our bass systems!

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