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Alpine SWS-10D4 Open Box

10" Dual 4-Ohm Type-S Series Car Subwoofer

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10" Type-S Series Subwoofer • Dual 4-Ohm Voice Coil • 1000W Max • 500W RMS • Kevlar Reinforced Cone • Kevlar Reinforced Cone • Hamr Surround Performance • 2.5" Voice Coil

Learn more about the LS-sws10d4-OB

We apologize

This item has been discontinued

Product Highlights


10" Type-S Series Subwoofer • Dual 4-Ohm Voice Coil • 1000W Max • 500W RMS • Kevlar Reinforced Cone • Kevlar Reinforced Cone • Hamr Surround Performance • 2.5" Voice Coil

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.

General Features:

  • 10" Dual 4-Ohm Type-S Series Car Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 150-500 watts
  • Impedance: Dual 4 ohm
  • Kevlar reinforced cone
  • HAMR performance surround
  • Progressive spider for reliable and consistent control
  • FEA Optimized Dual-Sided CRC Motor Structure
  • CEA-2031 compliant
  • 2.5" Voice Coil
  • 64 oz. magnet motor structure
  • Frequency response: 28-200 Hz
  • Resonance Frequency (Fs): 35 Hz
  • Sensitivity: 85.5 dB
  • Top-mount depth: 5-9/16"
  • 30-Day Sonic Electronix Warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Alpine SWS-10D4 Open Box Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine SWS-10D4 Open Box Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine SWS-10D4 Open Box Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Alpine SWS-10D4 Open Box Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
Type-S Series
Subwoofer Size
10"
Peak Power Handling
1500 watts
RMS Power Handling
500 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2.5"
Frequency Response
28 - 200 Hz
Sensitivity
85.5 dB
Xmax (millimeters)
15 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
Optional (Accessory required and sold separately)
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
.50 cubic feet
Optimum Sealed Box Volume
0.54 cubic feet
Maximum Sealed Box Volume
.85 cubic feet
Minimum Ported Box Volume
.75 cubic feet
Optimum Ported Box Volume
1.22 cubic feet
Maximum Ported Box Volume
1.3 cubic feet
Top-Mount Depth (Mounting Depth)
5-9/16"
Cutout Diameter
9-1/16"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
35 Hz
Equivalent Compliance (Vas)
25 liters
Total Speaker Q Value (Qts)
.46
Electrical Q Value (Qes)
.49
Electrical Resistance of Voice Coil (Re)
3.5 ohm
Mechanical Q Value (Qms)
8.65
Warranty and Return Policy
Parts Warranty Duration
30 days
Labor Warranty Duration
30 days
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

SWS-10D4-OB

Weight:

13.50lbs

Internal SKU:

LS-sws10d4-OB

Internal Product ID:

63715

Product and How-to Videos


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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

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