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Sundown Audio SW-SAV212D4 (Open Box, Great)

1000W RMS 12" SA Series Dual 4-ohm Subwoofer

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• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper Cone
• Foam Surround
• Mount depth: 7.35"
• Sensitivity: 85.03 dB

Learn more about the sav212d4_obg

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Description


Sundown Audio brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Sundown Audio SA-12 v.2 D4 12" (SA12V2D4)

2500W Peak (1250W RMS) 12" SA Series Dual 4-ohm Car Subwoofer (SW-SAV212D4)
Quantity: 1

Product Details:

  • 12" Dual 4 ohm SA Series Subwoofer
  • Power Handling:
    • Peak: 2500 watts
    • RMS: 1250 watts
  • Competition Grade Paper Cone
  • Foam Surround
  • Vented magnetic gap and pole piece
  • Innovative high velocity, cast aluminum vented frame spacer ring
  • Magnet ID faraday ring for smooth acoustic response
  • Spring-loaded terminals for easy connection
  • Stitched-on double “XL” tinsel leads
  • 2.75" High Temperature Copper Voice coil on aluminum former
  • 19 mm Xmax
  • Double Stacked magnet motor structure
  • Resonance Frequency (Fs): 33.6039 Hz
  • Sensitivity: 85.03 dB
  • Recommended sealed box volume: 1.0 cubic feet
  • Recommended ported box volume: 1.75 cubic feet
  • Top-mount depth: 7.35"
  • Cutout diameter: 11.01"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Sundown Audio SW-SAV212D4 (Open Box, Great) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio SW-SAV212D4 (Open Box, Great) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Sundown Audio SW-SAV212D4 (Open Box, Great) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio SW-SAV212D4 (Open Box, Great) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
SA Series
Subwoofer Size
12"
RMS Power Handling
1000 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
2.75"
Sensitivity
85.03 dB
Xmax (millimeters)
19 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Competition Grade Paper
Woofer Surround
Foam
Magnet Structure
Double Stacked
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1.0 cubic feet
Optimum Ported Box Volume
1.75 cubic feet
Top-Mount Depth (Mounting Depth)
7.35"
Cutout Diameter
11.01"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
33.6039 Hz
Equivalent Compliance (Vas)
28.0603 liters
Total Speaker Q Value (Qts)
0.4443
Electrical Q Value (Qes)
0.4996
Electrical Resistance of Voice Coil (Re)
6.35 ohm
Mechanical Q Value (Qms)
4.0178
What is in the box?
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SAV212D4_OBG

Weight:

36.40lbs

Internal SKU:

sav212d4_obg

Internal Product ID:

224953

Customer Ratings & Reviews


Sundown Audio SW-SAV212D4 (Open Box, Great) 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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Great subs

The following review is for SAV212D4, which is a part of the bundle you are viewing.

Sounds awesome

By Clint on May 28, 2026 Checkmark Icon Verified purchase
2016 Mitsubishi Outlander Sport


Best money spent

The following review is for SAV212D4, which is a part of the bundle you are viewing.

I wish I would had spent the money the first go around. These subs are amazing. I highly recommend these. The slam I only have my amp turned up half way bass settings on low and the are ridiculously loud.

By Michael on April 17, 2026 Checkmark Icon Verified purchase
2009 Chevrolet Impala


First time buying Sundown. .

The following review is for SAV212D4, which is a part of the bundle you are viewing.

I have always used skar products but I decided to spend more money on higher end stuff . These sa v2 12s hit so hard on my jp 23 v2!!!

By Jesse on February 23, 2026 Checkmark Icon Verified purchase
2023 Kia Forte




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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.