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JL Audio ACP112LG-TW1 MicroSub+™ single 12" powered subwoofer enclosure

Item # 13693333

JL Audio's ACP112LG-TW1 MicroSub+ powered subwoofer delivers the impressive bass you expect from JL Audio without...

Find what Fits your vehicle


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JL Audio's ACP112LG-TW1 MicroSub+ powered subwoofer delivers the impressive bass you expect from JL Audio without...

Item # 13693333

In stock

About the JL Audio ACP112LG-TW1

Bob Bihlmayer

JL Audio Built In USAEngineered for performance

JL Audio's ACP112LG-TW1 MicroSub+ powered subwoofer delivers the impressive bass you expect from JL Audio without taking up a lot of space. The compact MicroSub+ enclosure houses a built-in Class D amplifier that safely sends 400 watts RMS to the specially engineered, ultra-low impedance TW1 12" subwoofer.

JL Audio Built In USA Engineered for performance

JL Audio's ACP112LG-TW1 MicroSub+ powered subwoofer delivers the impressive bass you expect from JL Audio without taking up a lot of space. The compact MicroSub+ enclosure houses a built-in Class D amplifier that safely sends 400 watts RMS to the specially engineered, ultra-low impedance TW1 12" subwoofer.

Made in USA

JL Audio uses state-of-the-art automated woodworking equipment to fabricate the high-quality MDF enclosure with rugged automotive carpeting, a steel-mesh grille, 5-way binding posts, and solid internal wiring. The enclosure and subwoofer are constructed at the manufacturing facility in Florida to ensure that you get the bass that you expect from JL Audio.

Small enclosure, big sound

The specially designed, slot-ported enclosure measures just over 9 inches thick, so it'll fit just about anywhere. Its flared slot-port design cuts down on air turbulence and keeps your bass rich and clear. You'll enjoy thick low-frequency response from all of your music with this capable enclosure in your vehicle. And you can easily remove the power connector from this sub, so you can pull it out of your vehicle when you need a little extra space.


Product highlights:

  • 12" TW1 subwoofer in ported enclosure
  • woofer impedance: 0.25 ohms
  • built-in Class D amp delivers 400 watts RMS at 0.25 ohms
  • 8-gauge amp wiring kit required (sold separately)
  • fuse rating: 30 A
  • dimensions: 23-3/4"W x 15-3/4"H x 9-1/4"D
  • weight: 40.4 lbs.
  • warranty: 2 years
  • MFR # 93333

What's in the box:

  • MicroSub+ enclosure (loaded with one 12TW1-0.25 subwoofer and built-in amplifier)
  • Black metal grille (installed)
  • Power connection plug (installed)
  • 30-amp ATO fuse (installed)
  • 12" Speaker level input harness
  • Owner's manual

Customer reviews for JL Audio ACP112LG-TW1

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4.5 out of 5 stars
31 reviews

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More details on the JL Audio ACP112LG-TW1

Pat M.

Features & specs

Enclosure Type Ported
Finish Material Carpet
Grille Steel
Connector Type RCA/Harness
Quick-disconnect Plug Yes
Bi-amp Inputs No
Woofer Size (inches) 12
Woofer Material Mica-filled Polypropylene
Passive Radiator ---
Width 23-3/4"
Height 15-3/4"
Depth 9-1/4"
Parts Warranty 2 Years
Labor Warranty 2 Years
Frequency Response 24-200
Amplifier Power (RMS) 400 watts
Maximum Wattage N/A
Sensitivity N/A
Impedance 0.25 ohms
Second Voice Coil Impedance N/A
Crossover Point 50-200

Product Research


Overview: The ACP112LG-TW1 MicroSub+ is a compact powered subwoofer, useful in vehicles with limited space. The ported enclosure is loaded with one 12TW1-0.25 12" low impedance subwoofer (0.25Ω) and a 400 watt RMS class-D amplifier. The amp uses JL Audio's exclusive DCD amplifier technology, combining direct power conversion (no conventional switching power supply) with an ultra-high current output section. The result is an efficient design (91-94%) with very little heat generated.

Enclosure Design: The enclosure features MDF (medium-density fiberboard), constructed using CNC woodworking equipment, and covered with high-grade automotive carpeting. The driver is protected by a black steel-mesh grille. The port and amplifier panel are both on the same side of the enclosure.

Flared Port: The enclosure has a side-firing flared slot-port. The flared slot-port design minimizes turbulence and improves fidelity.

Power/Ground Plug: The power, ground, and remote turn-on wires attach to a removable terminal block; easily unplugged so the subwoofer can be removed when you need more storage space. Each terminal is a screw clamp that will accept up to 8 gauge wire (minimum 8 gauge power and ground recommend).

Audio Inputs: The amplifier section will accept either a line level (RCA) or speaker level signal. A 12" speaker level input harness is included.

Remote Level Control: An optional RBC-1 wired Remote Bass Control (item number 136RBC1, sold separately) allows bass level adjustment from the front of your vehicle.


  • Input Sensitivity: rotary control; variable from 70 mV to 1.4 V for the RCA inputs and 280 mV to 5.4 V for the speaker level inputs
  • Turn-On Mode: three position switch:
    • REM: amp turns on when +12 volts DC is applied to the remote terminal
    • DC: the amp turns on when a DC offset voltage is detected on the speaker level inputs
    • Signal: the amp turns on when an audio signal is detected on the speaker level inputs, turns off after 30 seconds without an input signal
  • Crossover: rotary control; the crossover point is continuously variable from 50 Hz to 200 Hz; the slope is 12 dB/octave and the low-pass crossover is always engaged
  • Polarity: two position switch; allows you to reverse the phase of the subwoofer (0°, 180°)

Protection Circuit: The amp is equipped with thermal protection circuit; it will shut down if it overheats.


  • Width: 23-3/4"
  • Height: 15-3/4"
  • Depth:
    • 9-1/4" (enclosure)
    • 10-1/4" (including grille)

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Customer Q&A

11 questions already asked

What does the crossover setting do if adjusted from 50 to 200 itâ??s at 100 right now. Dow it increase bass or clarity ?
pmusquin  Feb 16, 2021
2 answers
I haven't received my 12 inch yet , I do have similar powered 10 from jl but never mess with the controls just leave them like techs set up
daniel  Feb 27, 2021
At any frequency it seems to plays with great clarity and bass. I keep my set on 90 Frequency and fine tune it with all the other speakers using a Rockford Fosgate DSR1. The gain or input sensitivity is set at the 5 o'clock position. If you wanted to buy two of these, you only need one Remote Level control cord. Link it using a old school telephone cord splitter and use two separate telephone cords to each sub; it works in my system. Hope this info helps.
james michael  Feb 16, 2021
Which subwoofer can I purchase to replace the subwoofer that comes in this setup and works best with the built in amp? My subwoofer blew and I need to replace it.
rick  Sep 22, 2020
1 answer
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
thomas  Oct 07, 2020 (Staff)
Where can I get the wiring kit for this sub box? I had removed the box from my other car for my daughter but left the wires.
donald  Sep 09, 2020
2 answers
Just order a new "amp installl kit." From Crutchfield
ariana  Sep 14, 2020
order new wires its worth it. JL does not make wiring kits.
jason  Sep 14, 2020
Had this professionally installed in my 2014 jeep grand cherokee overland. When installed was set to lowest gain and tuned. Has JL remote bass knob installed witch was never turned up more than 3/4 . Ran for about 2 months and the speaker just blew. Why would it blow so fast ?
nateorious  Jun 18, 2018
1 answer
Ive had mine for a little over a year and turn it up as much as sonically pleasing as i can so its not a bad product. You either got a dud or was installed incorrectly, thats why i only install hardware myself. Since its a built-in amp it shouldve been a good match with the sub. The only thing i could think of was that it was the wrong guage wire running to the battery. But i think theres a 1 year with the sub. Might wanna check that out.
brandon  Jun 19, 2018
I have a 2002 Ford F-150 Super crew. Will this fit under my back seat, and if it does, would you recommend the 12 or the 10?
james  Nov 19, 2017
1 answer
12" has lots of boom and still compact I have it in the trunk of 2011 Hyundai Genesis
detrick l  Nov 19, 2017
will this work with ford sync 3 ?
reginald  Aug 19, 2017
4 answers
quincy  Aug 23, 2017
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
kenneth  Aug 19, 2017 (Staff)
If installed correctly, yes.
kenneth  Aug 19, 2017
I would say yes. Just need to figure out how to wire it. Plus I would get an epicenter to get more bass out of it!
daniel  Aug 19, 2017
Will this fit under the rear seat of a 2011 gmc sierra(Crew Cab)?
spencer  Dec 08, 2016
2 answers
If you lay the JL box down it should. I have a 1997 Buick Riviera which has a pretty small trunk. I ended up laying the box down at the very back of the trunk and I still have enough room to get groceries with no problem. You should be impressed with the sound that the sub produces it sounds very good in my trunk! I can only imagine in an open truck cab
gustavo  Dec 09, 2016
Sorry mine lives in a 2 door Tahoe cargo area. So not sure for your application.
daniel  Dec 09, 2016
I have 2 of these amp show green sub dnt work. I put another amp on the sub it works but it stops when I turn up the bass? Help
matt  Aug 21, 2016
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center:
kristina  Aug 21, 2016 (Staff)
Will this outperform the ACP208LG-W3v3? Which will hit harder and deeper the single 12 TW1 at 400w or the dual 8 W3v3 at 250w each. I currently have the twin 8 but thinking to swap for the 12.
dharmesh  Jun 07, 2016
1 answer
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.
kenneth  Jun 07, 2016 (Staff)
What is meant by micro sub. Does this have 2 subs then!?
daniel  Mar 07, 2016
1 answer
This is a single subwoofer. MicroSub+ simply refers to the smaller size of the enclosure.
jeff  Mar 07, 2016 (Staff)

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