JL Audio ACS110LG-TW1 PowerWedge+™ 10" 400W RMS Single Sealed Subwoofer Enclosure with Built-In Amplifier
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What's Inside?
- • 10" PowerWedge Single Sealed Subwoofer Enclosure with Built-In Amplifier
- • Black metal grille (installed)
- • Power connection plug (installed)
- • 30-amp ATO fuse (installed)
- • 12" Speaker level input harness
- • Specification card
- • Warranty information
- • Owner's Manual
Why Choose JL Audio ACS110LG-TW1 Powered Subwoofer?
Premium Sub-bass Performance
A TW1 Series subwoofer is powered by a 400-watt DCD Class D amplifier. The sealed enclosure is excellent for those who want a clean and precise sound. At just 5 inches deep, the box easily slides underneath seats. A black automotive carpet finish helps it blend with the interior.
Black Steel Mesh Grille
A black steel mesh grille and V-groove MDF wood protect the electronic components from damage. We offer lifetime tech support and can install your new subwoofer at a brick-and-mortar store. This subwoofer system employs our exclusive DCD™ amplifier technology to extract maximum output from its specially engineered, ultra low-impedance TW1 driver. By combining direct power conversion with an ultra-high current output section, DCD™ amplifiers are free of conventional switching power supplies.
Carefully Engineered
Its low-profile enclosure design has been carefully engineered to the optimum sealed enclosure alignment for the 10TW1 driver and has been fine-tuned through extensive real-world listening. Integration to OEM and aftermarket head units is a snap thanks to a variety of input options and automatic turn-on capability (via signal sensing or DC offset sensing).
Also included is a variable frequency low-pass filter (50-200 Hz), along with output polarity control switch. Adding an optional RBC-1 remote level control (sold separately) lets you control subwoofer levels directly from the driver’s seat. A quick-disconnect power connector makes it easy to remove the subwoofer when you need the extra space.
Frequently Asked Questions (FAQ)
- • Why doesn't my JL Audio ACS110LG-TW1 produce any bass even though the amplifier powers on?
Check the RCA or speaker-level inputs, crossover settings, and verify that the source unit's subwoofer output is enabled.
- • Can I connect the ACS110LG-TW1 to a factory radio without using a line output converter?
Yes. The built-in amplifier accepts high-level speaker inputs, allowing easy integration with most factory stereos.
- • Why does the powered subwoofer shut off after playing for several minutes?
This is usually caused by thermal protection, low battery voltage, or an inadequate ground connection.
- • Can I mount the ACS110LG-TW1 under a seat?
Yes, if your vehicle provides enough clearance and ventilation around the enclosure for proper cooling.
- • Why does the bass seem delayed compared to my door speakers?
The crossover frequency or polarity may need adjustment. Correct tuning helps blend the subwoofer with the rest of the system.
- • Does the ACS110LG-TW1 support a remote bass level controller?
Yes. It is compatible with JL Audio's optional remote bass control for quick bass adjustments while driving.
- • Why do I hear a humming or buzzing noise from the enclosure?
This is commonly caused by a grounding issue or signal cables routed too close to the power wire.
- • Can I install the ACS110LG-TW1 in a regular sedan trunk?
Yes. It is designed for a wide range of vehicles, including sedans, hatchbacks, SUVs, and trucks.
- • Why doesn't the signal-sensing Auto Turn-On feature work consistently?
Some factory radios output a weak signal. Using the remote turn-on wire provides more reliable amplifier activation.
- • Can I upgrade to a larger external amplifier later?
Yes. The enclosure can be rewired for use with an external amplifier if you decide to expand your system in the future.
Learn how to wire subwoofers

- Diameter : 10 Inch
- Impedance : 0.25 Ohm
- Amplifier Class : D
- Number of Voice Coils : Single
Features:
- Award-Winning Performance: Featured in Best Car Powered Subwoofers for 2026, delivering premium JL Audio bass in a compact design.
- Compact 10" Powered Subwoofer: Space-saving sealed enclosure loaded with a 10TW1 low-impedance subwoofer for deep, accurate low frequencies.
- 400W RMS Class-D Amplifier: Built-in high-efficiency amp produces powerful, clean bass with minimal heat buildup.
- JL Audio DCD Technology: Direct Power Conversion amplifier design achieves over 90% efficiency for strong output and long-term reliability.
- Sealed Enclosure Design: CNC-cut MDF cabinet wrapped in automotive-grade carpet provides tight, punchy, distortion-free bass.
- Flexible Input Options: Accepts RCA line-level or speaker-level inputs for easy integration with factory or aftermarket stereos.
- Quick-Disconnect Power Plug: Removable terminal block allows easy subwoofer removal when extra cargo space is needed.
- Adjustable Bass Controls: Variable low-pass crossover (50–200 Hz), input sensitivity control, and phase switch for perfect sound tuning.
- Remote Bass Ready: Compatible with JL Audio RBC-1 remote bass knob for convenient level adjustment from the driver’s seat.
- Built-In Protection Circuitry: Thermal protection keeps the amplifier safe from overheating for worry-free operation.
- Steel Mesh Grille: Heavy-duty grille protects the subwoofer from impact and cargo damage.
Specifcations:
- Enclosure Type: Sealed
- Finish Material: Carpet
- Grille: Steel
- Connector Type: RCA/Set screw
- Quick-disconnect Plug: Yes
- Bi-amp Inputs: No
- Woofer Size (inches): 10
- Woofer Material: Mica-filled Poly
- Width: 18-1/2"
- Height: 11-1/8"
- Depth: 5-7/8"
- Amplifier Power (RMS): 400 watts
- Impedance: 0.25 ohms
- Crossover Point: 50-200
- UPC: 699440933346
- Weight: 25
- 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.
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I just bought this JL Audio 10" Sub box and amp combo installed in my Kia Optima SXL and I'm very satisfied. I also purchased the bass control knob as well. It provides nice clean bass comparable to a 12" or 15" sub that does travel but not so much as to be annoying to other cars around you. It puts out quality clean bass that sounds really good. I added this to my 8 existing factory infinity stock speakers, and now I'm adding an additional amp to maximize the stock mids and highs.
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Outstanding sound inside a 2010 silverado. Very pleased with this investment. The quick disconnect is great if I need extra room which I don't so I can always enjoy it. If you're thinking about this for room and small space it's a awesome choice.
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Not a bad set up Underpowered for sure Great sound just need more for the Price