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  5. 8" Car Subwoofers Closeout
  6. Alpine SWR-8D4-4

See all parts that fit your 2016 S5

Alpine SWR-8D4 Open Box, Good Condition Used

1000W Peak 8" Type-R Series Dual 4 ohm High Performance Subwoofer Open Box Complete (Good, Used)

Alpine
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• Item Condition - Good, Used
• 1000W Peak
• 150-350W RMS
• Dual 4-Ohm Voice Coil
• Kevlar Treated Pulp Cone
• Durable HAMR Santoprene Surround

Learn more about the LS-swr8d4-OBC5

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This item has been discontinued

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Description

Alpine 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.

Item Condition - Open Box, Good Condition:
A Good Open Box used product shows wear from consistent use, but it remains in good condition and works perfectly. It may be marked, have identifying markings on it, or show other signs of previous use or installation. Original packaging, paperwork or protective wrapping may be missing or not included in its entirety. Warranty details are included in the item description or comments.

General Features:

  • 8" Dual 4-Ohm Type-R Series Car Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 150-350 watts
  • Impedance: Dual 4 ohm
  • Reinforced Parabolic Cone Structure with Poly-Mica Dust Cap & Pulp-Kevlar Cone
  • Durable HAMR Santoprene surround
  • Nomex Progressive Conex spider
  • Compound Radius Curve pole geometry
  • Oversized 1.6", High-Temperature, 4-Layer Dual Voice Coil
  • 52 oz. Double Strontium magnet motor structure
  • Frequency response: 30-200 Hz
  • Resonance Frequency (Fs): 40Hz
  • Excursion: 12mm
  • Top-mount depth: 4-1/2"
  • Sensitivity: 83.5dB
  • Subwoofer Grilles Sold Separately - Alpine KTE-8G
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Alpine SWR-8D4 Open Box, Good Condition Used Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine SWR-8D4 Open Box, Good Condition Used Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine SWR-8D4 Open Box, Good Condition Used Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Alpine SWR-8D4 Open Box, Good Condition Used Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
Series
Type-R Series
Subwoofer Size
8"
Peak Power Handling
1000 watts
RMS Power Handling
350 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
1-5/8"
Frequency Response
30 - 200 Hz
Sensitivity
40 dB
Xmax (millimeters)
12 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
Santoprene Rubber
Magnet Structure
Double Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.25 cubic feet
Optimum Sealed Box Volume
0.30 cubic feet
Maximum Sealed Box Volume
0.50 cubic feet
Minimum Ported Box Volume
0.5 cubic feet
Optimum Ported Box Volume
0.70 cubic feet
Maximum Ported Box Volume
0.70 cubic feet
Top-Mount Depth (Mounting Depth)
4-1/2"
Cutout Diameter
6-15/16"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
42 Hz
Equivalent Compliance (Vas)
10.3 liters
Total Speaker Q Value (Qts)
0.57
Electrical Q Value (Qes)
0.62
Electrical Resistance of Voice Coil (Re)
3.7 + 3.7 ohm
Mechanical Q Value (Qms)
6.8
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details

Manufacturer:

Alpine

Model Number:

SWR-8D4-4

Weight:

9.50lbs

Internal SKU:

LS-swr8d4-OBC5

Internal Product ID:

135595

Customer Ratings & Reviews

Alpine SWR-8D4 Open Box, Good Condition Used thumbnail image
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