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NVX XCW121

4000W Peak (2000W RMS) 12" X-Series Dual 1-ohm SPL Subwoofer

NVX
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• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Enhanced Woven Fiber Paper Composite Cone
• Custom High Roll Foam Surround
• 30 mm Xmax (One Way)
• Sensitivity: 85.6 dB

Learn more about the xcw121
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List price $599.99
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$499.99

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Get a Free roll of Belva 16 Gauge Speaker Wire. Simply click the "Add Both to Cart" button and you will see your savings at checkout. This offer cannot be combined with any other coupons or offers.

NVX XCW121

100% off


Priced separately $512 98

Promo Savings of $12 99

Total price:

$499 99

Description


NVX brand icon

Authorized dealer

Product Details:

  • 12" Dual 1 ohm X Series SPL Subwoofer
  • Power Handling:
    • Peak: 4000 watts
    • RMS: 2000 watts
  • Designed for Extremely Low Bass
  • 30 mm Xmax (One Way)
  • Enhanced Woven Fiber Paper Composite Cone
  • Custom High-Roll Foam Surround with Black Nylon Stitching
  • Precision-Engineered Die-Cast Aluminum Basket with Reinforced X Bracing for Structural Strength
  • Vent Cooling Spacer to Maintain Optimal Airflow and Keep the Voice Coil Cool
  • 3.0" High Temperature Flat Wire CCAW Aluminum Voice coil with Black Aluminum Former
  • 4-Layer Linear Roll Spider with Integrated Tinsel Leads for Enhanced Linearity and Durability
  • Optimized High-Velocity Pole Vent
  • One-piece T-yoke with Vented Magnet Gap for Efficient Heat Dissipation
  • 409 oz. Triple Stacked Ferrite Magnet with Protective Rubber Boot
  • Heavy-Duty 4-Gauge Hex Key Speaker Terminals
  • Frequency Response: 20 - 200 Hz
  • Resonance Frequency (Fs): 35.9 Hz
  • Sensitivity: 85.6 dB
  • Recommended ported box volume: 2.5 cubic feet
  • Top-mount depth: 10.35"
  • Cutout diameter: 11.22"
  • CTA-2031 Compliant
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconNVX XCW121 owner's manual

Frequently Asked Questions (FAQ)


NVX’s X-Series subwoofers are engineered for high output and deep, powerful bass. They are built to withstand extreme power output and hardcore performance without wear and tear during SPL applications.
It’s a custom-tooled die-cast aluminum basket with "X" bracing. It’s designed for structural strength, ensuring that the motor stays perfectly aligned even when the sub is moving a massive 30mm Xmax.
Located between the basket and magnet, this allows air to flow directly across the voice coil of the XCW121. It’s like a radiator for your sub, pulling away heat so you can crank the subwoofer at full volume for longer without thermal fade.
100% yes. Running 2000W RMS will destroy a stock alternator and battery. To prevent massive voltage drops and protect your gear, you’ll need 1/0 gauge wiring and likely a high-output alternator to keep the "juice" flowing.
Yes. NVX offers the [[xcw121rc,XCW121RC]] recone kit for this subwoofer. You don’t have to throw it away or send this sub back for warranty purposes. NVX got it covered.

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Specifications & Details


Subwoofer Specifications
Series
X Series
Subwoofer Size
12"
Peak Power Handling
4000 watts
RMS Power Handling
2000 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
1 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
3.0"
Frequency Response
20 - 200 Hz
Sensitivity
85.6 dB
Xmax (millimeters)
30 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Woven Fiber Paper Composite
Woofer Surround
High Roll Foam
Magnet Structure
Triple Stacked
Magnet weight
409 oz.
Magnet Type
Ferrite
Subwoofer Grille
No
Re-Cone Kit Available
Yes (Accessory available and sold separately)
CTA-2031 Compliant
Yes
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Optimum Ported Box Volume
2.5 cubic feet
Top-Mount Depth (Mounting Depth)
10.35"
Cutout Diameter
11.22"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
35.9 Hz
Equivalent Compliance (Vas)
16.41 liters
Total Speaker Q Value (Qts)
0.434
Electrical Q Value (Qes)
0.510
Electrical Resistance of Voice Coil (Re)
0.9 ohm
Mechanical Q Value (Qms)
2.893
What is in the box?
Paperwork
User manual
Brand sticker/decal
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

XCW121

Weight:

70.00lbs

Internal SKU:

xcw121

Internal Product ID:

205261

Customer Ratings & Reviews


NVX XCW121 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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I bought 2 of them for a cheap price can't beat that price

Loved the way it's built.And I haven't even heard them yet I know they some beast

By Mactavious on September 8, 2025 Checkmark Icon Verified purchase

3 found this helpful


By Michael on May 5, 2026 Checkmark Icon Verified purchase




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• Impedance: Dual 2 ohm
• Enhanced Woven Fiber Paper Composite Cone
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• 30 mm Xmax (One Way)
• Sensitivity: 85.6 dB

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