🔊 JL Audio 12TW3-D8 – Slim-Fit Car Subwoofer for Deep, Clean Bass
The JL Audio 12TW3-D8 car subwoofer is a compact car subwoofer with big bass ambitions. Designed to fit into tight spaces, it delivers deep, articulate bass that enhances every drive. Whether you're building a stealth system or upgrading a factory setup, this 12-inch subwoofer brings JL Audio's premium performance to compact enclosures.
Thanks to its innovative design, this shallow-mount sub is perfect for trucks, coupes, and other space-restricted vehicles. Don't let the size fool you—the 12TW3-D8 delivers full-bodied sound that rivals larger, traditional subwoofers.
🚀 Designed for Tight Installs Without Sacrificing Sound
Measuring just 3.25 inches deep, the JL Audio 12TW3-D8 can be installed in shallow enclosures where most subwoofers can’t go. This is made possible by JL Audio’s Concentric Tube Suspension technology. It allows the motor to be nested within the voice coil, maintaining excursion capability without requiring extra depth.
So even in a tight truck cab or shallow trunk compartment, you’ll enjoy full-range, low-end rumble that sounds powerful and clear.
🔧 Technical Features at a Glance
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12-inch shallow-mount subwoofer
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Dual 8-ohm voice coils
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400 watts RMS power handling
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Only 3.25" mounting depth
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Concentric Tube Suspension for space-saving performance
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Cast alloy basket with extensive venting
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DMA-optimized motor for distortion-free bass
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Works in sealed and ported boxes
This subwoofer is ideal for sealed enclosures as small as 0.8 cu. ft., or ported boxes around 1.35 cu. ft.
🎵 Clean Bass Performance at All Volumes
Thanks to JL Audio’s DMA-optimized motor, the 12TW3-D8 delivers clear bass with minimal distortion. The advanced motor structure keeps the subwoofer operating linearly, even during hard-hitting bass notes. You’ll get consistent output and smooth low-end performance, no matter your music genre.
This car subwoofer is engineered for both daily driving and bass-heavy systems. You get punch and control, even at high volume.
🧰 Installation-Friendly for Custom Builds
The 12TW3-D8 works well in stealth builds. It fits behind truck seats, inside shallow cargo areas, and beneath sedan rear decks. It’s also a great choice for fiberglass or custom underfloor boxes.
You can pair the dual 8-ohm voice coils to create a 4-ohm or 1-ohm load, depending on your amplifier’s output.
Looking for more options or compatible enclosures? Check out our full car subwoofer collection for matching gear.
🌞 Protect Your Subwoofer with Window Tint
Your subwoofer isn't just affected by volume—it’s affected by temperature and sunlight too. Prolonged heat exposure can reduce your system’s lifespan and affect performance. A high-quality car window tint keeps your interior cooler, blocks UV rays, and preserves your subwoofer’s components.
Tinting also enhances your car’s privacy and style. For the best tint installation, we recommend Window Tint Delaware, known for marine- and auto-grade window film solutions.
🔊 Pair With the Right Amplifier
To get the best performance from the 12TW3-D8, use an amplifier that produces 400 watts RMS into your desired impedance. JL Audio's RD and XD amplifier series are great choices.
Need help choosing an amp or enclosure? Our team at Audio Jam can help you build the perfect setup for your ride.
🛠️ Installed by Experts at Audio Jam
From wiring to enclosure builds, Audio Jam in Bear, DE, handles it all. Our skilled installers ensure every system is secure, sealed, and tuned for maximum performance.
We’ll mount your subwoofer, match it with the right amplifier, and test your system before you hit the road.
Audio Jam
📍 227 Governor Place, Bear, DE 19701
📞 (302) 832-2868
🕒 Monday–Saturday, 10 AM – 6 PM
Stop by or call to schedule a custom subwoofer installation today.
❓ Frequently Asked Questions (FAQ)
Q1: Will this subwoofer fit under my truck seat?
Yes. Its shallow design fits most under-seat and tight-space enclosures.
Q2: Can I wire this sub to 1 ohm?
Yes. With dual 8-ohm coils, wiring to 1 ohm is possible for high-power setups.
Q3: What kind of enclosure works best?
It works well in both sealed and ported enclosures. Use sealed for tight bass and ported for more boom.