Expert Service 1-877-289-7664 [Hours]


Did you know that we price match?

It is important that you always get the best price. Call us at 1-877-289-7664 for our best price on this item or check out our coupons page for great deals!

JL Audio ACS112LG-TW1 (Open Box)

400W PowerWedge+ Amplified Subwoofer Sealed-Enclosure System with Single 12" 12TW1 Subwoofer

In Stock. Only 1 Left!

List price $599.99

You Save: $131.50 (21.92%)

Thanks , You Pay:


with warranty

+ FREE Shipping in US 48

Order within 65 hrs 45 mins to ship 10/24

Arrives by Friday, Oct. 28 to zip 94107

Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

365-Day Coverage

Warranty assistance for a year

Item Added to Cart

JL Audio ACS112LG-TW1 (Open Box)

400W PowerWedge+ Amplified Subwoofer Sealed-Enclosure System with Single 12" 12TW1 Subwoofer


Keep Shopping


100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit



Trunk Kit - 20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)



Don't see the accessory you're looking for?
View all available accessories for the JL Audio ACS112LG-TW1 (Open Box).

Get FAST answers from customers ASK a Question See questions answers

JL Audio Store

JL Audio MicroSub+™ Amplified Subwoofer Systems

JL Audio MicroSub+ bass solutions feature thin-wall construction with extensive internal bracing that optimizes the proprietary loaded subwoofer, and maximizes the enclosure's internal air space. In order to achieve its outstanding output and low frequency response, the MicroSub+ is offered as a Ported Enclosure. With a flared design at the entry and exit, the port wraps around two walls to produce the necessary low tuning frequency that ensures excellent low end extension and smoothness. The Microsub+ enclosure is pre-loaded with a JL Audio TW1 driver, that is specifically chosen for its astonishing bass output when in an extremely small air space.

All MicroSub enclosures are hand built in JL Audio's Florida factory using CNC-Cut High Grade MDF materials, and wrapped in top-quality automotive carpet, to ensure that the system meets the standards that we all have become accustomed to with JL Audio products. The systems arrive to you wired, loaded and ready to connect and also include a steel mesh grille to protect the subwoofer.

JL Audio MicroSub+™ Amplified Subwoofer Systems
JL Audio DCD™ Amplifier Technology

DCD™ Amplifier Technology

JL Audio's Direct Conversion Class-D Technology (DCD™) is purpose-engineered to be the most efficient subwoofer amplifier on the market while delivering extraordinary output with minimal current draw and heat. DCD amplifiers do away with the losses associated with a traditional "switching power supply", allowing the amplifier to achieve total power efficiencies in the 91 - 94% range. What this means to you is very little heat, ultra-compact size and enough power to fill in the low end of any modest car audio setup. Along with the specifically engineered, low-impedance TW1 driver the system extracts astonishing overall output with unprecedented efficiency.

JL Audio TW1 (Thin-Line) Driver

JL Audio TW1 (Thin-Line) Driver

The TW1 subwoofers offer an unparalleled combination of superb performance and extremely small enclosure requirements, making them an outstanding choice for the MicroSub+ systems. The driver achieves this level of shallow-depth plus performance by compressing the architecture of the TW1 using a "concentric tube" structure that supports the oversized voice coil and the suspension attachments. This permits placing the large motor structure much further forward in the speaker than with conventional designs, while maintaining excellent linear excursion capability and mechanical stability. The enclosure's slot-ported design and precise tuning of the TW1 make for the Perfect match.

General Features:



  • Item Condition: Like New, Open Box, Complete
    Not Refurbished
  • Single 12" Sealed Subwoofer Enclosure with Built-In Amplifier
  • Power Output:
    • RMS: 400 Watts Total
  • Preloaded with single 12" TW1 Series Subwoofer Driver - 12TW1-0.25
  • Built-in DCD™ Class D amplifier
  • Sealed enclosure with carpet finish
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Subwoofer Features:

  • Injection molded, mica-filled polypropylene cone
  • Rubber surround
  • 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

Amplifier Features:

  • 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. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.

Enclosure Features:

  • V-Groove MDF Construction
  • 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: 6.625" D x 21.00" W x 13.50" H

Check out the JL Audio ACS112LG-TW1 Owner's Manual

Amplifier Specifications

Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Accessory Tools and Products

Accessories added


100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

Your Price $49.99

Belva BAK82BL

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

Your Price $12.99


Trunk Kit - 20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)

Your Price $53.99

Dynamat Xtreme 20' Trunk Kit 19405

20 ft. Trunk Kit with (5) Dynamat Extreme 18" x 32" Pieces

Your Price $97.97

Boom Mat Damping Material (050210)

20.8 sq.ft Damping Material - (10 pk - 12-1/2" x 24" x 2mm )

Your Price $109.99

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JL Audio ACS112LG-TW1 (Open Box)