JL Audio ACP112LG-TW1 Ported Single Amplified Subwoofer Enclosure 0.25Ω
With MicroSub+™ systems, the power is built right into the subwoofer system. Housing a proprietary Class D amplifier, this incredible subwoofer system utilizes JL Audio's 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, enabling them to generate remarkable power with unprecedented efficiency.
Key to the enclosure’s performance is its efficient slot-ported design and precise tuning of its 12TW1 subwoofer driver. Extensive interior bracing permits the use of thinner wall material that maximizes the enclosure's internal volume relative to its exterior volume. The port wraps around two walls of the enclosure to produce the necessary low tuning frequency that ensures excellent extension and response smoothness. The flared port entry and exit further enhance sound quality by minimizing air-flow noises through the port.
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. As with all MicroSub™ systems, these amplified versions produce the kind of output and extension normally associated with much larger systems.
Note: DCD™ amplified systems use very specific components. Never use a DCD™ amplifier or its companion subwoofer(s) with incompatible, non-DCD™ products. Doing so will void the warranty and may cause severe damage.
Finish: Black, high-grade automotive carpet with silver "JL AUDIO" embroidery on front baffle. A steel mesh grille is included to protect the subwoofer driver.
Construction: CNC-Cut High-Grade MDF
Amplifier power: Built-in DCD™ Class D amplifier (400 W @ 0.25 Ω)
Nominal Impedance: 0.25 Ω
Enclosure and Subwoofer Built in USA with global components.
Class D amplifier
Input Voltage Range @ RCA Inputs: 70 mV - 1.40 V RMS
Input Voltage Range @ High-Level Inputs: 280 mV - 5.4 V RMS
12 dB per octave filter slope
Low-pass filter: 50 - 200 Hz
Selectable output polarity (i.e. Phase): 0 / 180°
Selectable turn-on modes: Sig / DC / REM
Automatic turn-on (via signal sensing or DC offset sensing)
High level speaker input, w/ molex connection harness
Optional bass remote available, sold separately: JL Audio RBC-1
Fuse Rating: 30A x 1
8 gauge OFC power and ground wiring is recommended for installation.
V-Groove MDF Construction
Flared port entry and exit
Automotive-grade vehicle carpet
CNC-Cut High-Grade MDF
Silver "JL AUDIO Built In USA" embroidery on front baffle
Steel mesh grille mounted with driver
Enclosure Dimensions: 9.25" D x 23.75" W x 15.75" H
Single 12" Vented Subwoofer Enclosure with Built-In Amplifier
RMS: 400 Watts Total
Preloaded with single 12" TW1 Series Subwoofer Driver - 12TW1-0.25
Built-in DCD™ Class D amplifier
Vented enclosure with carpet finish
Injection molded, mica-filled polypropylene cone
Cast alloy frame
Long linear excursion capability (0.40 in / 10 mm, one-way)
DMA-optimized motor design
Patented "concentric tube" architecture
Patented "floating cone attach method" technology
Steel mesh grille included
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Warranty: 1 Year Manufacturer 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 replacement within 1 year from the original date of purchase with proper return authorization.
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