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Sundown Audio UV.2 12" D2 + NVX XCA6K

2 pair of 1750W RMS 12" U Series Dual 2-ohm Car Subwoofer with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

Only 1 Left!
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• RMS Power: 1750 watts
• Impedance: Dual 2 ohm
• Mount depth: 8.43"
• Sensitivity: 85.2 dB

Learn more about the uv212d2_x4_xca3k
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Universal – fits most vehicles.

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List price $3959.95
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-24%

$2999.95

 with warranty
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NVX - Worth the Envy - Direct to Consumer Car Audio

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Description


Sundown Audio brand icon

Authorized dealer

Sundown Audio U-12 v.2 D2 12" (U12V2D2)

4000W Peak (2000W RMS) 12" U Series Dual 2-ohm Car Subwoofer (SW-UV212D2)
Quantity: 4

Product Details:

  • 12" Dual 2 ohm U Series Subwoofer
  • Power Handling:
    • Peak: 4000 watts
    • RMS: 2000 watts
  • Pressed Paper Cone
  • Double-Stitched Surround
  • Optimized for small ported or bandpass enclosures
  • Heavy-duty cast basket for added durability
  • Spring-loaded terminals accept up to 8-gauge wire
  • Stitched-on heavy-duty tinsel leads for easy connection
  • Solid pole with vent channels and aluminum shorting ring cap
  • Rear gap-venting and top cooling channels
  • 3" High Temperature Copper Voice coil
  • Aluminum voice coil former for superior heat dissipation
  • 30 mm Xmax
  • Double Stacked Ferrite magnet motor structure
  • Resonance Frequency (Fs): 41.33 Hz
  • Sensitivity: 85.19 dB
  • Recommended sealed box volume: 1 cubic feet
  • Recommended ported box volume: 2 cubic feet
  • Top-mount depth: 8.43"
  • Cutout diameter: 12.84"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

NVX XCA3K

3000W RMS Class D XC-Series Monoblock Korean Competition Amplifier with Bass Remote
Quantity: 1

Product Details:

  • XC-Series Competition Class D 1 ohm Stable Monoblock Amplifier
  • RMS Power Rating:
    • 4 ohm: 1000 watts x 1 channel
    • 2 ohm: 2000 watts x 1 channel
    • 1 ohm: 3000 watts x 1 channel
    • 1 ohm: 3000 watts x 2 (Linked)
    • 2 ohm: 6000 watts x 1 (Strapped)
  • 35V/4700µF High-Capacity Capacitors — Deliver enhanced ripple suppression and voltage stability under extreme loads
  • IRF1404 High-Efficiency MOSFETs — Used in only the most demanding amplifier designs for superior current handling and heat control
  • High-Current FDH45N50F Output Transistors — Distributes power more efficiently across multiple devices, reducing heat and ensuring reliable performance
  • Advanced Multi-Amp Strapping and Linking Technology
  • Synchronize Two or More Amplifiers Using an RJ11 Cable (Included)
  • LED Indicators: Power, Protect, and Clip Lights
  • Includes a Wired Bass Level Remote Control with Voltage and Temperature Display, Plus a Clip LED Indicator
  • Precision-Machined Tiffany RCA Inputs and Outputs
  • 4-Way Protection Circuitry: Thermal, Overload, Speaker Short, and DC Offset Protection
  • Input sensitivity: 0.2 - 6 volts
  • Frequency Response: 10 - 250 Hz
  • Total Harmonic Distortion (THD): <0.1%
  • Signal to Noise Ratio: 91 dB
  • Dampening Factor: >400
  • Variable low-pass filter: 35 - 250 Hz, 24 dB/octave
  • Subsonic filter: 10 - 50 Hz, 24 dB/octave
  • Operating Voltage: 9.5V - 16V
  • Fuse Rating: 300A
  • Dual 1/0 AWG Power and Ground Inputs
  • 4 AWG Speaker Outputs
  • Dimensions: 15-7/8" L x 8-3/8" W x 2-3/4" H
  • Made in Korea
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: XCA3K
product manual icon NVX XCA3K Owner's Manual

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Item Details


Manufacturer:

Model Number:

UV212D2_X4_XCA3K

Weight:

256.00lbs

Internal SKU:

uv212d2_x4_xca3k

Internal Product ID:

226920

Customer Ratings & Reviews


Sundown Audio UV.2 12

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



Durability
5
Value
4.5
Features
5
Design
5
Usability
5

Customer Reviews

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Beast of an amp

The following review is for XCA3K, which is a part of the bundle you are viewing.

This amp is a powerhouse. Just make sure you have the power to run it. I added a 250 amp alternator, big 3 wiring upgrade, and added x2 extra batteries and I still get voltage drop when the bass hits. Although it's above 12 v ( drops from 14.4 to 14 down to 13.3, sometimes lower, depending on the track. Super sleek design, the bass knob looks sleek as well. Excellent Korean amplifier. This amp caps off and showcases my all nvx build beautifully.

By James on April 21, 2026 Checkmark Icon Verified purchase


This amp is a beast

The following review is for XCA3K, which is a part of the bundle you are viewing.

Highly underrated (so be careful), great looking, great sounding amplifier for your 3k ... or even 5 k needs (check the dyno video). I'm thoroughly impressed by it especially with the clarity and power. NVX has been my GO TO brand since I came across them and this amp is no disappointment regardless of what you put it up against.

By Marcus on August 22, 2025 Checkmark Icon Verified purchase




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