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12-inch (300 mm) Subwoofer Driver, Dual 4

JL Audio 12TW3D4

Quick Specs

  • Type: Subwoofers
  • Energy Star Rated: No
 

TW3 12-inch Subwoofer (400 W, dual 4 voice coils)


Building on the core technology of our TW5 thin-line subwoofers, the TW3 s deliver a powerful combination of shallow mounting depth and excursion capability. In fact, they are capable of greater excursion than the W3v3 s.

To allow this remarkable feat to be achieved, JL Audio s patented thin-line woofer technology compresses the architecture of the TW3 s using a concentric tube structure built into the injection-molded cone body. This structure supports the voice coil and a full annular spider, while permitting the placement of the large motor structure further forward in the speaker than with conventional designs.

TW3 s are optimized for small enclosures and offer our tab-ear mounting design to maximize cone area within their mounting footprints. We know you re going to love working with these amazing Subwoofers.

Deep, powerful and accurate JL Audio bass is now possible in more applications than ever.

  • Very shallow mounting depth (3.25 / 3.50 Inches)
  • No pole vent: permits mounting close to rear wall of enclosure.
  • Very small sealed enclosure volume requirements
  • Very long linear excursion capability (0.60 In / 15.2 mm, one-way)
  • DMA-optimized motor designs
  • concentric tube architecture
  • Patented floating cone attach method technology
  • Cast alloy frame
  • Injection molded, mica-filled polypropylene cone
  • Rubber surround
  • Aluminum-alloy dust cap and rear cap with JL Audio logo
  • Precision-built in USA at JL Audio s Miramar, Florida factory with global components

Technology

Dynamic Motor Analysis - DMA Optimized Motor

JL Audio's proprietary Dynamic Motor Analysis system is a powerful suite of FEA-based modeling systems, first developed by JL Audio in 1997 and refined over the years to scientifically address the issue of speaker motor linearity. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass.


Engineered Lead-Wire System (U.S. Patent #7,356,157)

Carefully engineered lead-wire design and attachments ensure controlled, quiet lead-wire behavior under the most extreme excursion demands.


Tab-Ear Frame Design

This frame design feature facilitates mounting the Subwoofer in tight spaces.


Concentric Tube Suspension

Our Concentric Tube Suspension™ technology delivers unprecedented excursion in a low-profile woofer.


Built in U.S.A. with Global Components

JL Audio's Miramar, Florida loudspeaker production facility is one of the most advanced in the world.


General Specifications
Continuous Power Handling (RMS) 400 W
Recommended Amplifier Power (RMS) 200 - 400 W
Nominal Impedance (Znom) Dual 4
Physical Specifications
Nominal Diameter 12 in / 300 mm
Overall Diameter (A) A1: 13.2 in / 335 mm
A2: 12.5 in / 318 mm
Mounting Hole Diameter 11.625 in / 295 mm
Bolt Hole Circle Diameter (C) 12.5 in / 318 mm
Motor Outer Diameter (D) 6.125 in / 156 mm
Mounting Depth (E) 3.5 in / 89 mm
Driver Displacement 0.029 cu ft / 0.82 L
Net Weight 14.9 lb / 6.8 kg
Parameters
Free Air Resonance (Fs) 26.46 Hz
Electrical Q (Qes) 0.558
Mechanical Q (Qms) 10.766
Total Speaker Q (Qts) 0.531
Equivalent Compliance (Vas) 1.72 cu ft / 48.73 L
One-Way Linear Excursion (Xmax)* 0.6 in / 15.2 mm
Efficiency (1 W / 1 m)** 84.11 dB SPL
Effective Piston Area (Sd) 83.517 sq in / 0.0539 sq m
DC Resistance (Re)*** 9.280
Sealed Enclosure Specifications
Wall Thickness 0.75 in / 19 mm
Front Baffle Thickness 0.75 in / 19 mm
Volume (net int.) 0.80 cu ft / 22.7 L
External Width (W) 21.25 in / 540 mm
External Height (H) 16 in / 406 mm
External Depth (D) 6.5 in / 165 mm
F3 37.99 Hz
Fc 46.97 Hz
Qtc 0.9426
Ported Enclosure Specifications
Wall Thickness 0.75 in / 19 mm
Front Baffle Thickness 0.75 in / 19 mm
Volume (net int.) 0.95 cu ft / 26.9 L
External Width (W) 30 in / 762 mm
External Height (H) 16.625 in / 422 mm
External Depth (D) 6.50 in / 165 mm
Internal Slot Port Width (SW) 5 in / 127 mm
Internal Slot Port Height (SH) 2.50 in / 64 mm
Internal Slot Port Length (SL) 31.25 in / 794 mm
Port Extension Length (PL) 26 in / 660 mm
Tuning Frequency (Fb) 32.14 Hz
F3 32.52 Hz

Quick Specs


  • Appearance

  • Type: Subwoofers

  • Features

  • Energy Star Rated: No

12TW3-D4 Product Manual

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