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JL Audio 12TW1-4

TW1 Series thin-line 12" 4-ohm subwoofer

Item # 13612TW14

JL Audio designed their TW1 subwoofers for tight spaces and tiny enclosures.

Read more from Crutchfield writer, Bob B.

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$289.99 each

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About the JL Audio 12TW1-4

JL Audio Built In USA Compact sub on a mission

JL Audio designed their TW1 subwoofers for tight spaces and tiny enclosures. Their 12TW1-4 12" subwoofer operates efficiently in an enclosure of only 0.65 cubic feet and, at only 4-5/8" deep, this workhorse will fit in all kinds of tight spots you wouldn't expect a subwoofer to go. You can power this sub with up to 300 watts RMS, so it's perfect for medium-sized systems.

JL Audio Built In USA Compact sub on a mission

JL Audio designed their TW1 subwoofers for tight spaces and tiny enclosures. Their 12TW1-4 12" subwoofer operates efficiently in an enclosure of only 0.65 cubic feet and, at only 4-5/8" deep, this workhorse will fit in all kinds of tight spots you wouldn't expect a subwoofer to go. You can power this sub with up to 300 watts RMS, so it's perfect for medium-sized systems.

TW1 side view

At only 4-5/8" deep, this TW1 sub can fit in some seriously small spaces.

Unique construction

The injection-molded mica-filled polypropylene cone with its rubber surround is housed in a specially designed cast-alloy frame, while JL Audio's patented concentric tube suspension allows the speaker's components to fit together more closely for a smaller profile. If you're looking for a subwoofer that brings maximum boom to minimal space, you're looking in the right place. 

To drive this single subwoofer, we recommend a mono amplifier rated between 225 and 450 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

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Highlights:

  • 12" 4-ohm subwoofer
  • mica-filled polypropylene injection-molded cone with rubber surround
  • power range: 75-300 watts RMS
  • peak power handling: 600 watts
  • top-mount depth: 4-5/8"
  • sealed box volume: 0.65 cubic feet
  • ported box volume: 1.125 cubic feet
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 92187
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What's in the box:

  • One 12" Thin-Line subwoofer
  • Grille
  • Owner's manual
  • On-line product registration information

Customer reviews

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JL Audio 12TW1-4 Reviews

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More details on the JL Audio 12TW1-4

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Features
Enclosure Compatibility

Features

Thin-Line Design: JL Audio's patented thin-line woofer technology compresses the architecture of the 12TW1-4 subwoofer and allows it to deliver great bass performance in tight space applications (less than 4-5/8" deep). Central to the technology is the Concentric Tube structure that supports the oversized voice coil and the suspension attachments. This permits placing the motor structure much further forward in the speaker than conventional designs, while maintaining excellent linear excursion capability. Equally important, the 12TW1-4 is designed for extremely small enclosure applications (0.65 ft³ sealed and 1.125 ft³ ported) and there is no pole vent, so no space is needed between the woofer and the back of the enclosure.

Concentric Tube Suspension: JL Audio's patented Concentric Tube Suspension employs a molded structure which spans beyond the edge of the motor structure, supporting the spider on the outside of the motor's boundaries and the large diameter voice coil on the inside. The large voice coil permits the magnet to sit inside it, rather than surrounding the coil as is typical in most woofers. The concentric tube structure and the elimination of a conventional top-plate helps JL Audio place the motor higher up into the cone body's space to further compress depth, while still permitting excellent mechanical excursion.

Mica-Filled Polypropylene Woofer: The subwoofer features an injection-molded, mica-filled polypropylene cone with a rubber surround for added durability, excursion and bass response.

Dynamic Motor Analysis (DMA): DMA is JL Audio's proprietary method of improving dynamic motor behavior. As a result of DMA optimization, the 12TW1-4 motor remains linear over a long excursion range, and also maintains a stable fixed magnetic field in the gap over a wide power range. The result is reduced distortion, faithfully reproduced transients, and tight, articulate bass.

Floating Cone Attachment Method (FCAM): JL Audio's patented FCAM technology is an innovative method of bonding the surround/cone assembly to the voice coil/spider assembly. This assembly technique ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.

Enclosure Compatibility

Sealed Box Volume: JL Audio recommends a sealed box volume of 0.65 ft³. A diagram is provided in the owner's manual for a sealed box with external dimensions of 26-1/2" W x 14" H x 5-1/2" D, assuming 3/4" thick material. (If you are using 5/8" thick materials, subtract 1/4" from each dimension.)

Ported Box Volume: JL Audio recommends a ported box volume of 1.125 ft³. A diagram is provided in the owner's manual for a ported box with external dimensions of 31-3/4" W x 16" H x 7" D, assuming 3/4" thick material. (If you are using 5/8" thick materials, subtract 1/4" from each dimension.) A slot port is recommended with the following dimensions:

  • Slot Width: 5-1/2"
  • Slot Height: 2-1/4"
  • Slot Length: 22-5/8"

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
its compatble with my amp [ Barry  Feb 25, 2016 ]

3 questions already asked

Q
Can you recommend an amp for this sub?
[ Matthew  Jun 25, 2018 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Krissy  Jul 02, 2018 ]  Staff
Q
Is it normal for these subs to smell like burnt when I first install them?
[ Cristian  Apr 22, 2018 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Apr 30, 2018 ]  Staff
Q
Is there a box sold on Crutchfield that's compatible with / preferred for this sub?
[ alex  May 16, 2016 ]
1 answer
A
Hey Alex, I don't know if there is one sold on crutchfield, but I bought a 0.55 cubic foot sealed box for this sub in my car and it sounds great!
[ Michael  May 16, 2016 ]

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