JL Audio PES112-TW1-4 StowAway Series 12" 300W RMS (600W Peak Power Handling) 4 Ohms, Subwoofer Sealed Enclosure
We are a JL Audio authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
- • 12" StowAway Series Subwoofer Sealed Enclosure
- • Sealed enclosure containing a TW1 subwoofer
- • Grille (installed)
- • Input harness
- • Owner's Manual
Why Choose JL Audio PES112-TW1-4 Enclosed Car Subwoofer?
Compact Power, Rugged Design
This enclosed subwoofer system features a single 12TW1-4 driver with a black textured finish. Rated at 300W RMS with 4Ω impedance, its StowAway™ design is engineered for challenging environments, delivering deep, powerful bass in a compact, durable package.
Marine-Grade Compact Subwoofer
Built from marine-grade materials, this compact subwoofer delivers smooth, powerful bass. Slotted mounting feet allow “off-the-floor” installation, making it ideal for tight spaces and locations with limited access.
Protected and Ready to Install
This enclosure features selectable harness exits at opposite ends and a protective mesh grille to safeguard the subwoofer. Mounting hardware is not included, so ensure the enclosure is securely affixed to prevent movement and vibration during use.
Frequently Asked Questions (FAQ)
- • Will the JL Audio PES112-TW1-4 fit in a small trunk or cargo area?
Yes, the compact enclosure is designed to fit in many cars, SUVs, and trucks without taking up excessive space. Measure your available area before installation to ensure a proper fit.
- • Why does it shut off after playing for a while?
This usually happens because the amplifier enters protection mode from overheating, low voltage, or poor wiring connections. Check the power, ground, and ventilation around the enclosure to prevent the issue.
- • Can I use it with an aftermarket stereo?
Yes, the powered enclosure works with most aftermarket head units using RCA or compatible audio connections. Proper signal and gain adjustments will help achieve the best sound quality.
- • Why does my JL Audio PES112-TW1-4 bass sound weak at higher volume?
Weak bass at high volume is often caused by amplifier clipping, incorrect gain settings, or an improperly adjusted crossover. Tuning the amplifier correctly will improve bass output while reducing distortion.
- • Can I adjust the bass level without changing my stereo settings?
Yes, the powered enclosure supports optional bass level control accessories depending on your installation. This allows you to increase or decrease bass output without changing the head unit's audio settings.
- • Why is there no sound coming from it?
This can happen because of loose wiring, blown fuses, incorrect input selection, or missing remote turn-on voltage. Verify all electrical and signal connections before replacing any components.
- • Can I upgrade my system later if I want even more bass?
Yes, many users start with the PES112-TW1-4 and later add additional amplifiers or subwoofers as their system grows. Make sure your vehicle's charging system can support any future upgrades.
- • How should I protect it from damage?
Avoid placing heavy objects directly on the enclosure and secure it properly to prevent movement while driving. Regularly inspect the wiring and keep the enclosure clean to maintain long-term performance.
Learn how to wire subwoofers

- Diameter : 12 Inch
- Sensitivity : 85.15 dB
- Impedance : 4 Ohm
- Frequency Response : 24-200 Hz
- Peak Power Handling : 600 Watts
- Number Of Subwoofers : 1
- Enclosure Type : Sealed
- Amplified : No
- RMS Power Handling : 300 Watts
Features:
- Enclosed Subwoofer System: Single 12TW1-4 Subwoofer.
- Finish: Black Texture Finish (300 watts, 4 ohms).
- StowAway™ Design: Engineered for challenging environments and applications.
- Materials: Constructed from marine-grade materials.
- Bass Performance: Smooth and powerful bass from a compact enclosure.
- Mounting Features: Slotted mounting feet for off-the-floor installations, Suitable for tight spaces where access is limited.
- Prewiring: Selectable harness exits located underneath at opposite ends.
- Protective Features: Includes protective mesh grille to safeguard the subwoofer.
- Note: Mounting hardware not included, Final mounting method must securely affix the enclosure to prevent movement and vibration.
Specifications:
- Model: PES112-TW1-4
- Driver: Single 12TW1-4 subwoofer
- Impedance: 4 ohms
- Finish: Black texture
- Included: Protective mesh grille
- Diameter : 12 Inch
- Sensitivity : 85.15 dB
- Impedance : 4 Ohm
- Frequency Response : 24-200 Hz
- Peak Power Handling : 600 Watts
- Top Mount Depth : 4-5/8 Inches
- Shallow Mount : Yes
- Number of Voice Coils : Single
- Suggested Sealed Box Volume : 0.65 Cubic ft.
- Suggested Ported Box Volume : 1.125 Cubic ft.
- RMS Power Handling : 300 Watts
- Height (H): 8.23 in / 209 mm
- Width (W): 21.78 in / 553 mm
- Depth (D): 15.16 in / 385 mm
- Mounting Location Depth (A): 12.66 in / 322 mm
- Mounting Location Width (B): 19.29 in / 490 mm
- UPC: 699440939683
- Weight: 20
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.