Discover the power and precision of the JL Audio 12 inch Subwoofer 12TW3-D4. Designed to deliver outstanding bass in a compact form, this subwoofer is perfect for anyone seeking premium audio upgrades at Garage Audio. Its slim design allows for versatile installation without compromising sound quality.

The JL Audio 12 inch Subwoofer 12TW3-D4 features a robust cone structure that ensures deep, clean bass. It fits effortlessly into tight spaces, making it ideal for vehicles with limited room. Experience the impact of a 12-inch subwoofer without sacrificing space.

This subwoofer is engineered with dual voice coils, providing flexibility in wiring configurations. Whether you're upgrading your car stereo system or building a custom audio setup, the JL Audio 12 inch Subwoofer 12TW3-D4 adapts to your needs.

Its construction includes a lightweight, mica-filled polypropylene cone and a durable rubber surround. This combination ensures long-lasting performance, even under heavy use. The subwoofer's advanced cooling system helps maintain optimal temperature, reducing distortion and enhancing reliability.

At Garage Audio, we understand the need for quality and precision. The JL Audio 12 inch Subwoofer 12TW3-D4 is tailored for those who demand top-tier sound in their vehicles. Enjoy crisp, punchy bass that elevates every drive.

Upgrade with confidence knowing you're investing in a product from JL Audio, a brand synonymous with excellence in audio engineering. Whether you're cruising down the highway or parked at your favorite spot, this subwoofer will transform your listening experience.

Visit us for expert installations and explore our range of car audio solutions, including stereos, speakers, and more. Elevate your in-car sound system with the JL Audio 12 inch Subwoofer 12TW3-D4 and feel the difference extraordinary audio makes.

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
Connections
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