JL Audio ACP110LG-TW1 10” Active Subwoofer MicroSub+ DCD Amplifier 400w RMS

The JL Audio ACP110LG-TW1 is a complete amplified subwoofer system from the MicroSub+ range, combining a single 10" 10TW1-0.25 driver in a slot-ported, low-profile MDF enclosure with a built-in 400W DCD Class D amplifier at 0.25 ohm.

Other MicroSub+ sizes: ACP108LG-W3v3 and ACP112LG-TW1. The optional JL Audio RBC-1 remote bass level control lets you adjust subwoofer level from the driver's seat (sold separately).

Key specifications

• Driver: single 10" 10TW1-0.25
• Built-in amplifier: 400W DCD Class D @ 0.25 ohm
• Enclosure: slot-ported, low-profile, CNC-cut MDF
• Inputs: RCA (70 mV – 1.40 V) and high-level speaker (280 mV – 5.4 V)
• Low-pass filter: 50–200 Hz, 12 dB/octave
• Remote level control: optional (RBC-1)
• External dimensions (W x H x D): 533 x 343 x 168 mm
• Net weight: 11.34 kg
• Fuse: 30A (ATO or ATC); 8 AWG power/ground wire recommended

DCD amplifier technology

The built-in DCD Class D amplifier uses direct power conversion and an ultra-high current output section in place of a conventional switching power supply. This allows it to drive the ultra low-impedance 10TW1-0.25 driver at 0.25 ohm with high efficiency and substantial output from a compact enclosure.

Enclosure design

The slot-ported enclosure is precisely tuned to the 10TW1 driver. Extensive internal bracing allows thinner wall material, maximising internal volume relative to external size. The port wraps around two walls to achieve the low tuning frequency needed for strong bass extension, and flared port entry and exit points reduce airflow noise.

Integration and controls

Connects to factory or aftermarket head units via RCA or high-level speaker inputs. Automatic turn-on works via signal sensing or DC offset sensing. Controls include a variable low-pass filter (50–200 Hz) and an output polarity switch. A quick-disconnect power connector makes removal straightforward when you need the boot space. Adding the optional RBC-1 remote level control (sold separately) gives driver's-seat volume adjustment.

Note: DCD amplified systems require specific matched components. Never use a DCD amplifier or its companion subwoofer with incompatible, non-DCD products — doing so will void the warranty and may cause severe damage.

Finish and construction

• Finish: black high-grade automotive carpet with silver "JL AUDIO" embroidery on the front baffle
• Steel mesh grille included
• Construction: CNC-cut high-grade MDF
• Nominal impedance: 0.25 ohm
• Enclosure and subwoofer built in USA with global components