JL Audio 12W1v3-2, 12W1v3-4 Owner's Manual

12W1v3-2 / 12W1v3-4 Subwoofer Driver

Congratulations on your purchase of a JL Audio subwoofer component. Your JL Audio subwoofer

is a precision loudspeaker which has been engineered to produce the highest quality sub-bass

performance in your vehicle. Authorized JL Audio dealers have extensive technical information

for many different applications of your new speaker. They also have the knowledge, skills and tools

to build a high-quality enclosure that will maximize the performance of your speaker. We highly

recommend that you have your enclosure built by an authorized JL Audio dealer.

Inside you will find specifications and two recommended enclosures for your speaker; one is a

sealed enclosure, the other is a ported design. Both types of enclosures will give you excellent sound

quality and low-frequency extension. The sealed enclosure is a better choice if space is extremely

tight, but the ported enclosure will produce 3dB more output at the same power if you have the

extra space to work with.

OWNER’S MANUAL

2 JL AUDIO 12W 1v 3- 2 /12 W1v 3 - 4

SUBWOOFER 12W1v3-2 12W1v3-4

Free Air Resonance (Fs): 26.55 Hz 26.21 Hz

Electrical “Q” (Qes): 0.554 0.535

Mechanical “Q” (Qms): 8.731 8.200

Total Speaker “Q” (Qts): 0.521 0.502

Equivalent Compliance (Vas):

2.544 ft

3

72.04 litres

2.706 ft

3

76.63 litres

One-way, Linear Excursion (Xmax)*:

0.45 in

11.4 mm

0.45 in

11.4 mm

Efficiency (1W/1m)**: 85.9 dB SPL 86.1 dB SPL

Effective Piston Area (Sd):

81.426 in

2

0.0525 m

2

81.426 in

2

0.0525 m

2

DC Resistance (Re): 2.210 ohm 3.915 ohm

Nominal Impedance: 2 ohm 4 ohm

Power Handling (continuous): 300W 300W

* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.

** Efficie ncy (1W/1m) is not an accurate ind icator of a subwoofer ’s output capabilit y and should not be u sed as a comparison to

other subwoofers to determine which one is “louder” !

A

C

D

B

E

12W1v3 SUBWOOFER PHYSICAL

SPECIFICATIONS

Nominal Diameter:

12.0 in
300 mm

Overall Diameter (A):

12.50 in
318 mm

Mounting Hole Diameter (B):

11.0625 in
281 mm

Bolt Hole Circle (C):

11.7 in
297 mm

Magnet Diameter (D):

5.25 in
133 mm

Mounting Depth (E):

5.41 in
137 mm

Net Weight:

12.2 lbs

5.5 kg

Driver Displacement:

0.052 ft3

1.47 liters

JL AUDIO 12W1v3-2 / 12W1v3-4

U.S. PATENTS: #5,734,734 #6 ,501,844 # 6,219,431 #D480,709 Oth er U.S. & Foreign patents p ending.

All specifications are subject to change without notice.