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Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

1 pair of 7000W Peak (3500W RMS) 12" Nightshade NS Series Dual 2-ohm Car Subwoofer with with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

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• Peak Power: 7000 watts
• Impedance: RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.15 dB

Learn more about the nsv612d2_x2_xca3k
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List price $3599.97
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Description


Sundown Audio brand icon

Authorized dealer

Sundown Audio NS v.6 D2 12" (NSV612D2)

7000W Peak (3500W RMS) 12" Nightshade Series Dual 2-ohm Car Subwoofer (SW-NSV612D2)
Quantity: 2

Product Details:

  • 12" Dual 2 ohm Nightshade (NS) Series Subwoofer
  • Power Handling:
    • Peak: 7000 watts
    • RMS: 3500 watts
  • Polypropylene Cone
  • Mega Roll V2 Surround
  • Custom tooled basket to prevent flexing at high power
  • Custom-tooled ultra-linear spider packs for consistent resistance
  • Extended shorting ring to reduce distortion from inductance changes
  • Cast aluminum cooling ring to draw heat away from voice coil
  • Unique air exchanging system forces hot air out and cool air in
  • Aluminum vent ring to enhance airflow through the motor
  • Eight-layer voice coil for increased surface area
  • 35 mm Xmax
  • Double Stacked Neodymium magnet motor structure
  • Resonance Frequency (Fs): 37.14 Hz
  • Sensitivity: 83.15 dB
  • Recommended ported box volume: 2.5 cubic feet
  • Top-mount depth: 12.75"
  • Cutout diameter: 11.19"
  • 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:

NSV612D2_X2_XCA3K

Weight:

182.00lbs

Internal SKU:

nsv612d2_x2_xca3k

Internal Product ID:

226927

Customer Ratings & Reviews


Sundown Audio NS6 V.6 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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