JL Audio 12TW3 User Manual

12TW3 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

JL Audio 12TW3 Specifications

General

Driver Size	12 inches
RMS Power Handling	400 watts
Peak Power Handling	800 watts
Frequency Response	22 Hz - 200 Hz
Voice Coil Configuration	Dual Voice Coil
Impedance	4 ohms
Mounting Depth	3.25 inches
Nominal Impedance	4 ohms

Summary

12TW3 Subwoofer Driver Introduction

12TW3 Subwoofer Physical Specifications

Wiring and Enclosure Recommendations

Voice Coils Wired in Series

Diagrams and explanation for wiring the subwoofer's voice coils in series for various impedance loads.

Voice Coils Wired in Parallel

Diagrams and explanation for wiring the subwoofer's voice coils in parallel for various impedance loads.

Recommended Sealed Enclosure

Details on net internal volume, external dimensions, and tuning for a recommended sealed enclosure.

Recommended Power Range and Warranty

Recommended Continuous (RMS) Power Range

Guidance on optimal power levels for the subwoofer driver, categorized by performance and warranty.

JL Audio Limited Warranty (USA)

Details of the limited warranty for automotive subwoofer components, including coverage and exclusions.