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Alpine SWS-1223D Open Box

(Open Box) 12" Dual 2 ohm Type-S Series Subwoofer

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12" Dual 2 ohm Type-S Series Subwoofer • 900W Max • 300W RMS • Pulp/fiber cone reinforced with Kevlar • Santoprene rubber surround • Progressive NOMEX Spider • Reinforced layer spider integration • Compound radius curve motor structure

Learn more about the LS-sws1223d-OB

We apologize

This item has been discontinued

Product Highlights


12" Dual 2 ohm Type-S Series Subwoofer • 900W Max • 300W RMS • Pulp/fiber cone reinforced with Kevlar • Santoprene rubber surround • Progressive NOMEX Spider • Reinforced layer spider integration • Compound radius curve motor structure

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.

  • 12" Dual 2 ohm Type-S Series Subwoofer
  • Power Handling:
    • Peak: 900 watts
    • RMS: 300 watts
  • Impedance: Dual 2 ohm
  • Pulp/fiber cone reinforced with Kevlar
  • Santoprene rubber surround
  • Progressive NOMEX Spider
  • Reinforced layer spider integration
  • Compound radius curve motor structure
  • Co-molded Spider/voice coil coupling ring
  • High strength custom steel frame with perimeter venting
  • Frequency response: 27-700 Hz
  • Sensitivity: 86 dB
  • Top-mount depth: 5"
  • 1-year SonicElectronix.com 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-1223D Open Box Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine SWS-1223D Open Box Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine SWS-1223D Open Box Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Alpine SWS-1223D Open Box Subwoofers

2 Channel Amp

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
Peak Power Handling
900 watts
RMS Power Handling
300 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
2 ohm
Frequency Response
27 - 700 Hz
Sensitivity
86 dB
Xmax (millimeters)
12.8 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Glass Fiber and Pulp/Kevlar
Woofer Surround
Santoprene Rubber
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
.85 cubic feet
Maximum Sealed Box Volume
1.5 cubic feet
Minimum Ported Box Volume
1.25 cubic feet
Maximum Ported Box Volume
2.0 cubic feet
Top-Mount Depth (Mounting Depth)
5-1/16"
Cutout Diameter
10-11/16"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

SWS-1223D-OB

Weight:

17.00lbs

Internal SKU:

LS-sws1223d-OB

Internal Product ID:

39426

Product and How-to Videos


Customer Ratings & Reviews


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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.