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JL Audio 10TW3-D4 (Open Box, Good)

400W RMS 10" TW3 Series Dual 4-ohm Shallow Subwoofer

JL Audio
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• RMS Power: 400 watts
• Polymer/Mica Composite Cone
• Rubber Surround
• Impedance: Dual 4 ohm
• Mount depth: 3.25"
• Sensitivity: 82.10 dB

Learn more about the ls-10tw3d4-u7
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Universal – fits most vehicles.

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2026-06-08 09:46:00
List price $519.99
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$311.99

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$280.79 with coupon | Price details
Starting at $29/mo or 4 payments of $78 Buy now, pay later and installment payment plans are offered by Afterpay and Affirm. Learn more

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Product Highlights


• RMS Power: 400 watts
• Polymer/Mica Composite Cone
• Rubber Surround
• Impedance: Dual 4 ohm
• Mount depth: 3.25"
• Sensitivity: 82.10 dB

Description


JL 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.

JL Audio 10TW3-D4 10" Shallow Mount Subwoofer | Features & Specs

About the JL Audio 10TW3-D4

High-Performance Bass in a Compact Package

The JL Audio 10TW3-D4 is a 10-inch shallow-mount subwoofer designed for deep, accurate bass in vehicles where space is limited. Featuring a thin mounting depth of only 3.25 inches, this subwoofer delivers powerful, distortion-free low frequencies without requiring a large enclosure.

Optimized for Tight Spaces

Despite its compact design, the 10TW3-D4 utilizes JL Audio’s high-excursion technology to provide clean, hard-hitting bass. Its low-profile frame allows for easy installation in tight spaces, making it an excellent choice for trucks, sports cars, and custom enclosures.

Power & Performance

  • Power Handling (RMS): 400 watts
  • Nominal Impedance: Dual 4-ohm voice coils
  • Mounting Depth: 3.25 inches
  • Frequency Response: 32.3 Hz - 400 Hz
  • One-Way Xmax: 0.60 inches (15.2 mm) for deep excursion

Built for Long-Lasting Performance

The JL 10TW3-D4 is engineered with a robust, high-quality motor structure to ensure durability and heat dissipation. The subwoofer's heavy-duty suspension system provides consistent bass output even under demanding conditions.

Sealed & Ported Enclosure Compatibility

  • Sealed Enclosure Volume: 0.50 cu. ft.
  • Ported Enclosure Volume: 0.60 cu. ft.
  • Ported enclosures deliver 3dB more output, maximizing bass efficiency

Ideal for Custom Audio Systems

With its versatile wiring options, the dual 4-ohm voice coils allow various impedance configurations, ensuring compatibility with a wide range of amplifiers. This subwoofer is perfect for high-performance custom installations.

Keep Reading...

Product Details:

  • 10" Dual 4 ohm TW3 Shallow Mount Series Subwoofer
  • Power Handling:
    • RMS: 400 watts
  • Polymer/Mica Composite Cone
  • Rubber Surround
  • No pole vent: permits mounting close to rear wall of enclosure
  • Very small sealed enclosure volume requirements
  • Very long linear excursion capability
  • DMA-optimized motor designs
  • Concentric tube architecture
  • Patented “floating cone attach method” technology
  • Aluminum-alloy dust cap and rear cap with JL Audio logo
  • High Temperature Aluminum Voice coil
  • 15.2 mm Xmax
  • Double Stacked Ferrite magnet motor structure
  • Resonance Frequency (Fs): 32.30 Hz
  • Sensitivity: 82.10 dB
  • Recommended sealed box volume: 0.50 cubic feet
  • Recommended ported box volume: 0.60 cubic feet
  • Top-mount depth: 3.25"
  • Cutout diameter: 9.625"
  • Authorized Internet Dealer
  • Black Steel-Mesh Grille Insert Available: JL Audio JL Audio SGR-10TW3 (sold separately)
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconJL Audio 10TW3D4 owner’s manual

Subwoofer Wiring Guide


Wiring Guide to Wire 1 JL Audio 10TW3-D4 (Open Box, Good) Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 JL Audio 10TW3-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 JL Audio 10TW3-D4 (Open Box, Good) Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 JL Audio 10TW3-D4 (Open Box, Good) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
TW3 Shallow Mount Series
Subwoofer Size
10"
RMS Power Handling
400 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Aluminum
Sensitivity
82.10 dB
Xmax (millimeters)
15.2 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polymer/Mica Composite
Woofer Surround
Rubber
Magnet Structure
Double Stacked
Magnet Type
Ferrite
Subwoofer Grille
Optional (Accessory required and sold separately)
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
0.50 cubic feet
Optimum Ported Box Volume
0.60 cubic feet
Top-Mount Depth (Mounting Depth)
3.25"
Cutout Diameter
9.625"
Shallow Mount Installation
Yes
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
32.30 Hz
Equivalent Compliance (Vas)
19.82 liters
Total Speaker Q Value (Qts)
0.62
Electrical Q Value (Qes)
0.656
Mechanical Q Value (Qms)
11.35
What is in the box?
Paperwork
User manual
Warranty/Registration card
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:

LS-10tw3d4-u7

Weight:

11.90lbs

Internal SKU:

ls-10tw3d4-u7

Internal Product ID:

227527

Product and How-to Videos


  • JL Audio TW3 Shallow Car Subwoofers | Product Overview
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews


JL Audio 10TW3-D4 (Open Box, Good) thumbnail image

5 star
100%
4 star
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Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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JL Audio 10TW3

Just what I was looking for at a great price! I’m going to add this with the one I already have installed. Shipping was fast and packaged well.

By Aaron on February 19, 2026 Checkmark Icon Verified purchase




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