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Sundown Audio SAV312D4 + NVX XCA3K

1 pair of 3000W Peak (1500W RMS) 12" SA Series Dual 4-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

Only 1 Left!
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• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 4 ohm
• Competition-grade Paper cone
• Durable Foam surround
• Mount depth: 8.4"
• Sensitivity: 84.05 dB

• Includes 1 pair of Subwoofer with amplifier

Learn more about the sav312d4_xca3k
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List price $2111.97
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Description


Sundown Audio brand icon

Authorized dealer

Sundown Audio SA-12 v.3 D4 12" (SA12V3D4)

3000W Peak (1500W RMS) 12" SA Series Dual 4-ohm Car Subwoofer (SAV312D4)
Quantity: 2

Product Details:

  • 12" Dual 4 ohm SA Series Subwoofer
  • Power Handling:
    • Peak: 3000 watts
    • RMS: 1500 watts
  • Competition Grade Paper Cone
  • Foam Surround
  • Vented magnetic gap and solid pole piece with vent channels
  • Innovative high velocity, cast aluminum vented frame spacer ring
  • Magnet ID faraday ring and pole cap faraday ring
  • Spring-loaded terminals for easy connection
  • Stitched-on double "XL" tinsel leads
  • 2.75" High temperature Copper voice coil on aluminum former
  • 22 mm Xmax
  • Double Stacked magnet motor structure
  • Resonance Frequency (Fs): 35 Hz
  • Sensitivity: 84.9 dB
  • Recommended sealed box volume: 1.0 cubic feet
  • Recommended ported box volume: 1.75 cubic feet
  • Top-mount depth: 8.4"
  • Cutout diameter: 11.2"
  • 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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Specifications & Details


Amplifier Power Specifications
RMS Power @ 4 ohms
1000 watts x 1 channel
RMS Power @ 2 ohms
2000 watts x 1 channel
RMS Power @ 1 ohm
3000 watts x 1 channel
Amplifier Specifications
Amplifier Class
D
Number of Channels
1 - Mono
Total Peak Power Output
6000 watts
Total RMS Power Output
3000 watts
Maximum Input Gauge Size
1/0 AWG
Minimum Impedance Unbridged
1 ohm
THD at Rated RMS Power
<0.1%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Subsonic
Low-Pass Crossover Frequency
35 - 250 Hz
Subsonic Filter
10 - 50 Hz
Signal-to-Noise Ratio
91 dB
Remote bass/level controller
Yes
Subwoofer Specifications
Series
XC-Series
Subwoofer Size
12"
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
RMS Power Handling
1500 watts
Peak Power Handling
3000 watts
Woofer Surround
Foam
Woofer Composition
Paper
Sensitivity
84.05 dB
Frequency Response
10 - 250 Hz
Xmax (millimeters)
22 mm
Top-Mount Depth (Mounting Depth)
8.4"
Cutout Diameter
11.2"
Recommended Enclosure Type
Ported / Vented
Sealed
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SAV312D4_XCA3K

Weight:

21.54lbs

Internal SKU:

sav312d4_xca3k

Internal Product ID:

226582

Customer Ratings & Reviews


Sundown Audio SAV312D4 + NVX XCA3K thumbnail image

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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