JL Audio ACP112LG-TW1 MicroSub+ powered subwoofer with 12″ sub and 400-watt amp

Amplified Subwoofer System with Single 12TW1-0.25 Subwoofer, Built-In 400W Class D Amplifier, Black Carpet – Ported Enclosure

With MicroSub+ systems, the power is built right into the subwoofer system. Housing a proprietary Class D amplifier, this incredible subwoofer system utilizes 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, 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. 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.
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

Continuous Power Handling (RMS)	Built-in amplifier 400 W @ 0.25 Ω
System Nominal Impedance	0.25 Ω
Input Voltage Range @ RCA Inputs	70 mV – 1.40 V RMS
Input Voltage Range @ High-Level Inputs	280 mV – 5.4 V RMS
Recommended Copper Power / Ground Wire Gauge	8 AWG wire
Fuse Rating	30 A (ATO or ATC)
Enclosure Type	Slot-ported, Low-profile
Finish	Black carpet
Grille Included	Black Steel Mesh

SIGNAL PROCESSING

Filter Mode(s)	Low-Pass only
Filter Slope(s)	12 dB/octave
Filter Frequency Range	50 Hz – 200 Hz
Output Polarity Switch	Yes
Remote Subwoofer Level Control	Optional (RBC-1)

PHYSICAL SPECIFICATIONS

External Width (W)	23.75 in / 603 mm
External Height (H)	15.75 in / 400 mm
External Depth (D)	9.25 in / 235 mm
Net Weight	40.4 lb / 18.33 kg