JL Audio 12TW3-D8 12" inch Subwoofer, Dual 8 Ohm Voice Coils, 400 Watts 92194

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

General Specifications

Continuous Power Handling (RMS)	400 W
Recommended Amplifier Power (RMS)	200 - 400 W
Nominal Impedance (Znom)	Dual 8 Ω

 

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 (B)	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)	32.660 Hz
Electrical “Q” (Qes)	0.715
Mechanical “Q” (Qms)	10.071
Total Speaker “Q” (Qts)	0.668
Equivalent Compliance (Vas)	1.205 cu ft / 34.12 L
One-Way Linear Excursion (Xmax)*	0.6 in / 15.2 mm
Reference Efficiency (no)
Efficiency (1 W / 1 m)**	84.23 dB SPL
Effective Piston Area (Sd)	83.517 sq in / 0.0539 sq m
DC Resistance (Re)***	14.800 Ω
* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied. ** For parallel-wired voice coils, divide "Re" by 4. All other specifications remain the same. *** Re (DC resistance) is measured with the voice coils in series, for parallel-wired specification divide Re by 4. All other specifications remain the same.

 

Sealed Enclosure Specifications

Wall Thickness	0.75 in / 19 mm
Front Baffle Thickness	0.75 in / 19 mm
Volume (net int.)	1.00 cu ft / 28.3 L
External Width (W)	25 in / 635 mm
External Height (H)	16.625 in / 422 mm
External Depth (D)	6.5 in / 165 mm
F3	38.27 Hz
Fc	48.50 Hz
Qtc	0.9919
Enclosure Notes * The enclosure recommendations listed above are external dimensions which assume the use of 0.75 in (19 mm) thick material. If you are using 0.625 in (16 mm) thick material, subtract 0.25 in (6) from each dimension. Do not use any material with a thickness of less than 0.625 in (16 mm) as this may compromise the rigidity of the enclosure. * All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into account.

 

Ported Enclosure Specifications

Wall Thickness	0.75 in / 19 mm
Front Baffle Thickness	0.75 in / 19 mm
Volume (net int.)	1.3 cu ft / 36.8 L
External Width (W)	34 in / 864 mm
External Height (H)	17 in / 432 mm
External Depth (D)	6.75 in / 171 mm
Internal Slot Port Width (SW)	5.25 in / 133 mm
Internal Slot Port Height (SH)	2.375 in / 60 mm
Internal Slot Port Length (SL)	24 in / 610 mm
Port Extension Length (PL)	22.0625 in / 560 mm
Tuning Frequency (Fb)	32 Hz
F3	29.79 Hz