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JL Audio 12TW3-D4

400W RMS 12" TW3 Series Dual 4-ohm Shallow Subwoofer

JL Audio
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• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

Learn more about the 12tw3d4
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Get a Free roll of Belva 16 Gauge Speaker Wire. Simply click the "Add Both to Cart" button and you will see your savings at checkout. This offer cannot be combined with any other coupons or offers.

JL Audio 12TW3-D4

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Priced separately $582 98

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$569 99

Product Highlights


• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

Description


JL Audio brand icon

Authorized dealer


JL Audio 12TW3-D4

Building on the core technologies developed for the TW5 thin-line subwoofers, the TW3 series embodies a powerful combination of shallow mounting depth and long linear excursion capability. The result is a speaker that delivers big, impressive sub-bass performance in a compact form that works for those snug-fit installations. Thanks to the TW3 thin-line architecture, the deep, powerful and articulate JL Audio bass is now accessible in more applications than ever. The 10-inch subwoofers require only 3.25 inches of mounting depth, while the 12-inch models take just 3.50 inches.

An aluminum-alloy dust cap aids with heat dissipation, extending the speaker’s power handling range. A JL Audio logo adds a finishing accent to the dust cap’s rich satin black finish. Known for its durability, the TW3 series’ injection-molded, mica-filled polypropylene cone design offers impressive frequency response and deep, powerful bass reproduction with minimal distortion. Proprietary motor, suspension and cone modeling systems are used to achieve long, linear excursion capabilities with low distortion and powerful sound output. The result is tight, clean, articulate bass performance at all power levels.


Product Details:

  • 12" Dual 4 ohm TW3 Shallow Mount Series Subwoofer
  • Power Handling:
    • RMS: 400 watts
  • Mica Injected Polypropylene - MIPP Cone
  • Rubber Surround
  • Precision-built in USA
  • Very shallow mounting depth (3.25 / 3.50 Inches)
  • Aluminum-alloy dust cap and rear cap
  • Cast alloy frame
  • Patented “floating cone attach method” technology
  • “Concentric tube” architecture
  • Dynamic Motor Analysis system
  • Carefully engineered lead-wire design
  • 15.2 mm Xmax
  • Resonance Frequency (Fs): 26.46 Hz
  • Sensitivity: 84.11 dB
  • Recommended sealed box volume: 0.80 cubic feet
  • Recommended ported box volume: 0.95 cubic feet
  • Top-mount depth: 3.5"
  • Cutout diameter: 11.625"
  • Authorized Internet Dealer
  • Optional protective subwoofer grille (Sold Separately)
  • 1-year Manufacturer's Warranty

  • Priced Individually

Frequently Asked Questions (FAQ)


This is a Dual 4-Ohm (D4) subwoofer. To achieve a 2-ohm load, connect both positive terminals together to the amp’s (+) and both negative terminals together to the amp’s (-). This "parallel" wiring maximizes most mono amp outputs.
The 12TW3 uses a Tab-Ear mounting system rather than a full circular rim. If your enclosure's cutout is a perfect 11.0625" circle, the "ears" should sit flat. If they aren't, you likely need to slightly notch the wood where the ears rest.
No. Unlike most subs, the TW3 has no pole vent on the back of the motor. You can mount it with as little as 1/4" of clearance from the back wall of your enclosure without risking overheating or mechanical damage.
This is often mechanical bottoming. Because this sub has a massive 15.2mm excursion, ensure the cone isn't hitting the floor, seat, or a grille. You need at least 1.5 to 2 inches of "stroke" clearance in front of the woofer.
Because of the Concentric Tube suspension, the terminals are tucked in. Pre-wire the leads to the sub terminals before dropping it into the cutout. Use 12-gauge wire to ensure the spring terminals hold a tight, rattle-free grip.
Yes, but it is optimized for tiny sealed boxes (0.80 cu. ft.). If you go ported (0.95 cu. ft.), you must use a subsonic filter on your amp set to approx. 25-30Hz to prevent the shallow suspension from over-extending and failing.
The TW3 moves significantly more air than standard shallow subs. Check for air leaks around the mounting ears. Use a gasket or high-quality foam tape to create a perfect seal; even a tiny leak will ruin the low-end response.
Use #8 or #10 pan-head wood screws. Do not use countersunk (tapered) screws, as the wedge shape can put outward pressure on the plastic mounting "ears" and cause them to crack over time under high vibration.

Subwoofer Wiring Guide


Wiring Guide to Wire 1 JL Audio 12TW3-D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 JL Audio 12TW3-D4 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 12TW3-D4 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 JL Audio 12TW3-D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
TW3 Shallow Mount Series
Subwoofer Size
12"
RMS Power Handling
400 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Sensitivity
84.11 dB
Xmax (millimeters)
15.2 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
Optional (Accessory required and sold separately)
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
0.80 cubic feet
Optimum Ported Box Volume
0.95 cubic feet
Top-Mount Depth (Mounting Depth)
3.5"
Cutout Diameter
11.625"
Shallow Mount Installation
Yes
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
26.46 Hz
Equivalent Compliance (Vas)
48.73 liters
Total Speaker Q Value (Qts)
0.531
Electrical Q Value (Qes)
0.558
Electrical Resistance of Voice Coil (Re)
9.280 ohm
Mechanical Q Value (Qms)
10.766
What is in the box?
Paperwork
User manual
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:

12TW3-D4

Weight:

16.90lbs

Internal SKU:

12tw3d4

Internal Product ID:

69577

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 12TW3-D4 thumbnail image

5 star
95%
4 star
5%
3 star
0%
2 star
0%
1 star
0%



Durability
4.8
Value
4.8
Features
5
Design
5
Usability
5

Customer Photos & Videos


Customer Reviews

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amazing

Sounds very clean and deep I love this woofers I do recommend jl audio for subwoofers

By JOSE on April 3, 2014

59 found this helpful


Great product

If you looking for a shallow sub this is the one it punch like the big boys sub put 2 in my pilot and i love them

By Miyong on July 7, 2014

56 found this helpful


Unbelievably clean

Takes up minimal space but viciously shakes the trunk. Clean & powerful hits.

By Cubert on June 17, 2020 Checkmark Icon Verified purchase

46 found this helpful


Very nice product

Nice craftsman ship english instructions that are very good at install and wiring

By Sean on September 16, 2016

46 found this helpful


Best shallow mount sub

This sub fit perfectly in my 2016 Tacoma. Have very limited space so needed to build a shallow box. I am extremely happy with the sound and quality of this subwoofer. Highly recommend.

By Jeremie on October 30, 2016

44 found this helpful


Unbelievable! Best ever!!!

I have 1x 12tw3-d4 installed in a 2020 f150 crew cab platinum in a down fire under rear seat non ported box powered by a rd500, integrated with a lc2i pro and it freaking slams!!! Nice pure clean real bass! JL audio is the top of the line in my opinion! Don’t question it just buy it and you will be overly happy!!

By Undertaker on March 26, 2022

42 found this helpful


Great Value

This a a great speaker. I'm very impressed that a shallow mount speaker would play so great.

By Alex on July 29, 2022

41 found this helpful


Nice sounding sub

This sub hits and sounds amazing even with just one sub sounds great for shallow mount would defiantly recommend

By john on January 8, 2020

42 found this helpful


Great Value

This a a great speaker. I'm very impressed that a shallow mount speaker would play so great.

By Alex on July 18, 2022 Checkmark Icon Verified purchase

37 found this helpful


amazing!!

i have had everything from W7's to Skar. decided for a single ported 12 in my 2023 silverado. skar enclosure. and this sub. i never could have imagined a shallow mount sub sounding this clean, rich and loud. overall just super impressed. totally worth the money.

By Arthur on May 5, 2023 Checkmark Icon Verified purchase

34 found this helpful




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