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Sundown Audio X V.4 8" D4 (Open Box, Good)

1000W RMS 8" X Series Dual 4-ohm Car Subwoofer

Sundown Audio
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• RMS Power: 1000 watts
• Impedance: Dual 4 ohm
• Mount depth: 7.56"
• Sensitivity: 79.8 dB

Learn more about the ls-xv48d4-u7

We apologize

This item has been discontinued

Description


Sundown Audio brand icon

Authorized dealer

Item Condition - Open Box, Good:

This product is used, but it will work like new and is in overall good condition. It will show signs of wear that can include scuffing, scratches, fingerprints, dents, and worn corners or installation marks. May be missing non-essential parts, accessories or original packaging.


Sundown Audio X V.4 8" D4

Designed with an extended pole piece and an incredible four inches of peak-to-peak excursion, the X v.4 is engineered for ultra-deep bass and high power handling. Engineered to set a new standard in the low-frequency/small-ported-box subwoofer category, the X Series can also work in up to a 50% larger enclosure if you desire even more low-end extension.

The X v.4 series differentiates itself with its incredibly linear suspension, ensuring the lowest level of bass extension in a small enclosure while maintaining extremely low levels of distortion. Notably, the v.4 series features a much larger motor structure (220mm vs. 190mm on the v.1 series), improved motor ventilation, and an all-new Mega-Roll v.2 surround, providing a more linear and rugged update to the world-famous Mega-Roll v.1 surround design.


Product Details:

  • 8" Dual 4 ohm X Series Subwoofer
  • Power Handling:
    • RMS: 1000 watts
  • Also compatible with 50% larger enclosures for a more low-end extension
  • Hyper-extended pole
  • 3" voice coil
  • 19 mm Xmax
  • Triple Stacked magnet motor structure
  • Resonance Frequency (Fs): 44.15 Hz
  • Sensitivity: 79.8 dB
  • Recommended sealed box volume: 0.3 cubic feet - 0.4 cubic feet
  • Recommended ported box volume: 0.75 cubic feet - 1 cubic feet
  • Top-mount depth: 7.56"
  • Cutout diameter: 7.32"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Sundown Audio X V.4 8" D4 (Open Box, Good) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio X V.4 8" D4 (Open Box, Good) 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 X V.4 8" D4 (Open Box, Good) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio X V.4 8" D4 (Open Box, Good) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
X Series
Subwoofer Size
8"
RMS Power Handling
1000 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
3"
Sensitivity
79.8 dB
Xmax (millimeters)
19 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Magnet Structure
Triple Stacked
Subwoofer Grille
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.3 cubic feet
Maximum Sealed Box Volume
0.4 cubic feet
Minimum Ported Box Volume
0.75 cubic feet
Maximum Ported Box Volume
1 cubic feet
Top-Mount Depth (Mounting Depth)
7.56"
Cutout Diameter
7.32"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
44.15 Hz
Equivalent Compliance (Vas)
3.56 liters
Total Speaker Q Value (Qts)
0.41
Electrical Q Value (Qes)
0.5
Electrical Resistance of Voice Coil (Re)
6 ohm
Mechanical Q Value (Qms)
2.3
What is in the box?
Paperwork
User manual
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:

SW-XV48D4-2

Weight:

32.00lbs

Internal SKU:

ls-xv48d4-u7

Internal Product ID:

217227

Customer Ratings & Reviews


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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.