JL Audio TW3 Thin-Line Car Subwoofer

12" Dual 8 ohm (12TW3-D8)

Part Number 010-03217-00

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THINK THIN. EXPERIENCE AWESOME.

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.

DELIVERS DEEP, POWERFUL BASS PERFORMANCE IN TIGHT-SPACE INSTALLATIONS

CHOOSE FROM 10- OR 12-INCH TW3 THIN-LINE SUBWOOFERS

EXTREMELY SMALL (0.80 CUBIC FEET) ENCLOSURE VOLUME REQUIREMENTS

CAST-ALLOY FRAME PROVIDES A ROCK-SOLID SPEAKER PLATFORM WITH SHALLOW MOUNTING DEPTHS (3.25/3.50 INCHES)

PAIRS BEST WITH AMPLIFIER POWER IN THE 200- TO 400-WATT RANGE

1-YEAR WARRANTY

WHAT YOU'LL LOVE

ENGINEERED FOR BIG SOUND FROM TIGHT SPACES

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.

DESIGN ACCENTS

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.

POLYPROPYLENE CONE TECHNOLOGY

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.

DYNAMIC MOTOR ANALYSIS (DMA) OPTIMIZED DESIGN

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.

SPACE-SAVING FRAME DESIGN

Benefiting from years of JL Audio woofer design experience, the robust TW3 series speakers feature purpose-engineered cast-alloy frames that have been modified for even greater strength. A space-saving tab-ear frame design helps to maximize cone area within the woofer’s mounting footprint.

POWERFULLY ADAPTABLE

On a wide range of vehicle applications, with sealed or ported enclosures, the TW3 subwoofers deliver superb sound quality and power handling. Both the 10- and 12-inch versions support pairing with amplifiers in the 200- to 400-watt range.

AUDIO TECHNOLOGIES

CONCENTRIC TUBE SUSPENSION TECHNOLOGY

The TW3 series features a patented concentric tube structure built into the injection-molded speaker cone body. This structure supports the voice coil and a full annular spider while permitting the placement of a large motor structure farther forward in the speaker than with conventional designs.

ENGINEERED LEAD-WIRE SYSTEM

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

General
Sizes	10"/12"
Weight	10": 10.1 lbs (4.6 kg) 12": 14.9 lbs (6.8 kg)
Continuous power handling (RMS)	400 W
Sensitivity (SPL @ 1 W/1 m)	10" (Dual 4 Ω): 82.10 dB 10" (Dual 8 Ω): 82.27 dB 12" (Dual 4 Ω): 84.11 dB 12" (Dual 8 Ω): 84.23 dB
Nominal impedance	Dual 4 Ω or Dual 8 Ω
Recommended amplifier power (RMS)	200-400 W
Cone material	Mineral-filled polypropylene
Warranty	1 year
Networking & Connectivity
Speaker connections	Push-button terminal
Mounting Dimensions
Frame outer diameter	10": Max: 11.2" (284 mm) Min: 10.5" (267 mm) 12": Max: 13.2" (335 mm) Min: 12.5" (318 mm)
Mounting depth clearance	10": 3.25" (83 mm) 12": 3.5" (89 mm)
Mounting hole	10": 9.625" (244 mm) 12": 11.625" (295 mm)
Bolt hole circle	10": 10.5" (267 mm) 12": 12.5" (318 mm)
Motor outer diameter	10": 5.1" (130 mm) 12": 6.125" (156 mm)
Driver displacement	10": 0.019 cu ft (0.54 L) 12": 0.029 cu ft (0.82 L)
Parameters
Free Air Resonance (FS)	10" (Dual 4 Ω): 32.30 Hz 10" (Dual 8 Ω): 39.262 Hz 12" (Dual 4 Ω): 26.46 Hz 12" (Dual 8 Ω): 32.660 Hz
Electrical “Q” (Qes)	10" (Dual 4 Ω): 0.656 10" (Dual 8 Ω): 0.825 12" (Dual 4 Ω): 0.558 12" (Dual 8 Ω): 0.715
Mechanical “Q” (Qms)	10" (Dual 4 Ω): 11.35 10" (Dual 8 Ω): 9.84 12" (Dual 4 Ω): 10.766 12" (Dual 8 Ω): 10.071
Total “Q” (Qts)	10" (Dual 4 Ω): 0.62 10" (Dual 8 Ω): 0.761 12" (Dual 4 Ω): 0.531 12" (Dual 8 Ω): 0.668
Equivalent Compliance (Vas)	10" (Dual 4 Ω): 0.700 cu ft (19.82 L) 10" (Dual 8 Ω): 0.510 cu ft (14.44 L) 12" (Dual 4 Ω): 1.72 cu ft (48.73 L) 12" (Dual 8 Ω): 1.205 cu ft (34.12 L)
One-way linear excursion (Xmax; specs are derived via one-way voice coil overhang method with no correction factors applied)	0.6" (15.2 mm)
Reference Efficiency (NO)	10" (Dual 4 Ω): 0.23% 10" (Dual 8 Ω): 0.23%
Effective piston area (SD)	10": 56.532 in² (0.0365 m²) 12": 83.517 in² (0.0539 m²)
DC resistance (RE)	10" (Dual 4 Ω): 9.036 Ω 10" (Dual 8 Ω): 15.008 Ω 12" (Dual 4 Ω): 9.280 Ω 12" (Dual 8 Ω): 14.800 Ω
Sealed Enclosure Specifications
Wall thickness	0.75" (19 mm)
Front baffle thickness	0.75" (19 mm)
Volume (net int.)	10" (Dual 4 Ω): 0.50 cu ft (14.16 L) 10" (Dual 8 Ω): 0.575 cu ft (16.3 L) 12" (Dual 4 Ω): 0.80 cu ft (22.7 L) 12" (Dual 8 Ω): 1 cu ft (28.3 L)
External width (W)	10" (Dual 4 Ω): 16" (406 mm) 10" (Dual 8 Ω): 16.75" (425 mm) 12" (Dual 4 Ω): 21.25" (540 mm) 12" (Dual 8 Ω): 25" (635 mm)
External height (H)	10" (Dual 4 Ω): 13.875" (352 mm) 10" (Dual 8 Ω): 15" (381 mm) 12" (Dual 4 Ω): 16" (406 mm) 12" (Dual 8 Ω): 16.625" (422 mm)
External depth (D)	6.5" (165 mm)
-3 dB cutoff frequency (F3)	10" (Dual 4 Ω): 40.09 Hz 10" (Dual 8 Ω): 41.61 Hz 12" (Dual 4 Ω): 37.99 Hz 12" (Dual 8 Ω): 38.27 Hz
System resonance (FC)	10" (Dual 4 Ω): 40.09 Hz 10" (Dual 8 Ω): 41.61 Hz 12" (Dual 4 Ω): 37.99 Hz 12" (Dual 8 Ω): 38.27 Hz
System Q at resonance (QTC)	10" (Dual 4 Ω): 0.96 10" (Dual 8 Ω): 1.0453 12" (Dual 4 Ω): 0.9426 12" (Dual 8 Ω): 0.9919
Ported Enclosure Specifications
Wall thickness	0.75" (19 mm)
Front baffle thickness	0.75" (19 mm)
Volume (net int.)	10" (Dual 4 Ω): 0.60 cu ft (17 L) 10" (Dual 8 Ω): 0.75 cu ft (21.2 L) 12" (Dual 4 Ω): 0.95 cu ft (26.9 L) 12" (Dual 8 Ω): 1.3 cu ft (36.8 L)
External width (W)	10": 30" (762 mm) 12" (Dual 4 Ω): 30" (762 mm) 12" (Dual 8 Ω): 34" (864 mm)
External height (H)	10" (Dual 4 Ω): 14.625" (372 mm) 10" (Dual 8 Ω): 16.375" (416 mm) 12" (Dual 4 Ω): 16.625" (422 mm) 12" (Dual 8 Ω): 17" (432 mm)
External depth (D)	10" (Dual 4 Ω): 5.125" (130 mm) 10" (Dual 8 Ω): 5.25" (133 mm) 12" (Dual 4 Ω): 6.50" (165 mm) 12" (Dual 8 Ω): 6.75" (171 mm)
Internal slot port width	10" (Dual 4 Ω): 3.625" (92 mm) 10" (Dual 8 Ω): 3.75" (95 mm) 12" (Dual 4 Ω): 5" (127 mm) 12" (Dual 8 Ω): 5.25" (133 mm)
Internal slot port height	10": 2.125" (54 mm) 12" (Dual 4 Ω): 2.50" (64 mm) 12" (Dual 8 Ω): 2.375" (60 mm)
Internal slot port length	10" (Dual 4 Ω): 31.0625" (789 mm) 10" (Dual 8 Ω): 26.8125" (681 mm) 12" (Dual 4 Ω): 31.25" (794 mm) 12" (Dual 8 Ω): 24" (610 mm)
Port extension length	10" (Dual 4 Ω): 26.375" (670 mm) 10" (Dual 8 Ω): 25" (635 mm) 12" (Dual 4 Ω): 26" (660 mm) 12" (Dual 8 Ω): 22.0625" (560 mm)
Tuning frequency (FB)	10" (Dual 4 Ω): 32.14 Hz 10" (Dual 8 Ω): 31.33 Hz 12" (Dual 4 Ω): 32.14 Hz 12" (Dual 8 Ω): 32 Hz
-3 dB cutoff frequency (F3)	10" (Dual 4 Ω): 32.11 Hz 10" (Dual 8 Ω): 29.54 Hz 12" (Dual 4 Ω): 32.52 Hz 12" (Dual 8 Ω): 29.79 Hz
Additional
Additional	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 (6.5 mm) 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. When using multiples in a common enclosure you will need to recalculate the enclosure and port dimensions. For assistance please contact your authorized JL Audio dealer or JL Audio Technical Support. We recommend the use of this in a bi-amplified system using high-quality satellites and a high-quality amplifier. We do not recommend the use of this with a passive crossover (coil), as this type of device will adversely affect performance. All specifications are subject to change without notice.

TW3 subwoofer

JL Audio TW3 Thin-line Car Subwoofer