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Sundown Audio U 8" D4 (Open Box, Like New)

600W RMS 8" U Series Dual 4-ohm Car Subwoofer

Sundown Audio
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• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mount depth: 6.02"
• Sensitivity: 81.6 dB

Learn more about the uv18d4_obn

We apologize

This item has been discontinued

Description


Sundown Audio brand icon

Authorized dealer

Item Condition - Like New (Open Box):

This product works and looks like new. It may have been opened for a visual demo or product video. In some cases there may be signs of an attempt at installation like opened packaging or mounting screw holes used, but there is no real sign of use or wear. Includes all original parts, packaging and accessories (or suitable replacement)

Sundown Audio U-8 D4 8" (U8D4)

1500W Peak (750 RMS) 8" U Series Dual 2-ohm Car Subwoofer (SW-UV18D4)
Quantity: 1

Product Details:

  • 8" Dual 4 ohm U Series Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 750 watts
  • Pressed Paper Cone
  • Double-Stitched Surround
  • Optimized for small ported 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
  • 2.25" High Temperature Copper Voice coil
  • Aluminum voice coil former for superior heat dissipation
  • 18 mm Xmax
  • Double Stacked Ferrite magnet motor structure
  • Resonance Frequency (Fs): 41.288 Hz
  • Sensitivity: 81.6 dB
  • Recommended sealed box volume: 0.3 cubic feet
  • Recommended ported box volume: 0.65 cubic feet - 0.75 cubic feet
  • Top-mount depth: 6.02"
  • Cutout diameter: 7.3"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Sundown Audio U 8" D4 (Open Box, Like New) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio U 8" D4 (Open Box, Like New) 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 U 8" D4 (Open Box, Like New) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio U 8" D4 (Open Box, Like New) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
U Series
Subwoofer Size
8"
RMS Power Handling
600 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
2.25"
Sensitivity
81.6 dB
Xmax (millimeters)
18 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Magnet Structure
Double Stacked
Magnet Type
Ferrite
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
.3 cubic feet
Minimum Ported Box Volume
.65 cubic feet
Maximum Ported Box Volume
.75 cubic feet
Top-Mount Depth (Mounting Depth)
6.02"
Cutout Diameter
7.3"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
41.288 Hz
Equivalent Compliance (Vas)
6.970 liters
Total Speaker Q Value (Qts)
0.431
Electrical Q Value (Qes)
0.519
Electrical Resistance of Voice Coil (Re)
6.34 ohm
Mechanical Q Value (Qms)
2.542
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:

UV18D4_OBN

Weight:

25.00lbs

Internal SKU:

uv18d4_obn

Internal Product ID:

224914

Customer Ratings & Reviews


Sundown Audio U 8

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