AudioControl LC2i

2 Channel Line Out Converter with AccuBASS

Product videos

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs

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Product Highlights

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs



Authorized dealer

For over two decades, AudioControl has been designing and manufacturing award-winning auto sound products at our factory located in the rainforests of the Pacific Northwest. During this period, countless sound-off winning contestants have chosen AudioControl products to give them the competitive edge. "Can you really win without AudioControl", was part of an article written commenting on competition winning systems? Nothing sounds better than an awesome recording played back on a kick-butt system. Unfortunately, the acoustics of your vehicle can take away from your system's performance. While AudioControl products do not change the laws of physics (although they act as they do), auto sound enthusiasts have long known that AudioControl products "make good stereos sound better".

LC2i - 2 Channel Line Out Converter with Accubass and Subwoofer Control

The AudioControl LC2i, is a compact, two-channel processor with active input circuitry, which allows it to accept speaker-level signals of up to 400 watts per channel from factory-installed source units or amplifiers. It converts them to high-quality pre-amp signals that can then be directed to after-market processors and/or amplifiers. Users can enjoy maximum sound quality while maintaining the use of factory volume and steering wheel controls.

The AudioControl LC2i is also a super low distortion (typically <.01%) 9.5-volt line driver as well as a line converter. You now have sound quality every bit as good as with an after-market head unit while keeping the convenience and cosmetic features of the factory-installed source unit. In short, the LC2i gives you the brilliant sound quality that AudioControl has been providing for over 33 years. Combine this with the AccuBASS equalization discussed below and you have a mind-bending performance from a factory head unit.

Active, High Impedance Inputs

With AudioControl's Active, High Impedance Inputs you're in a whole different world. AudioControl's input stage results in a ruler-flat frequency response so you get rock solid bass without the signal roll-off you get with those passive LOCs. Passive LOCs have been used for years yet they add distortion, reduce signal and roll off bass. In short... they sound bad!

AccuBASS™ Bass Compensation

Most factory speaker systems are not capable of loud, clean bass reproduction. This is why many car manufacturers restrict bass frequencies at higher volumes. AudioControl's AccuBASS Bass Compensation circuit corrects this with a set it and forget it remix circuit.

$99.99 $149.99 $189.99 $249.99 $299.99 $399.99
Line Out Converter 2 Channel 6 Channel 6 Channel 8 Channel 6 Channel 6 Channel
High Level Inputs
Channel Summing
Remote Included
Auxiliary Input
Signal Delay
Input Level Control

General Features:

  • Two channels of active speaker level inputs - Accepts 400 watt signals per channel
  • AccuBASS processing for correction of bass roll-off
  • Fixed and variable outputs with discrete level controls
  • GTO - Signal sensing inputs
    • 12-volt trigger that will turn on LC2i
  • Dual amplifier
  • 9.5 volt pre-amp outs
  • Level matching controls
  • 12 Volt trigger output
  • Input for optional subwoofer level control: AudioControl ACR-1
  • Dimensions: 6-3/8"W x 3-1/8"D x 1-1/2"H
  • Authorized Internet Dealer
  • 5 Year Manufacturer's Warranty (*when installed by an authorized AudioControl dealer)

The LC2i Specifications

  • Maximum speaker level input: 400 watts per channel
  • Maximum Preamp output: 9.5Vrms / 13V peak
  • Optional Dash Level Control Remote: +0dB / -19dB
  • Frequency response: 10 Hz - 100,000 Hz; ±1dB
  • Total harmonic distortion: 0.01%
  • Signal to Noise ratio: >110dB
  • Input Impedance: 20K ohms
  • Output Impedance: 150 ohms
  • Power draw: 150 mA
  • Recommended fuse rating: 1 Amp
  • Weight: 1 pound
AudioControl LC2i owner’s manual

Product history:

AudioControl LC2i thumbnail
(newest, current model)
AudioControl LC2i thumbnail
(previous model, replaced by AudioControl LC2i)

Specifications & Details

Line Out Convertor Specifications
Number of Channels
Frequency Response
33 - 100,000 Hz
Speaker Level Input Wattage/Voltage
400 watts
Preamp Output Voltage
9.5 volts
Line-Out Converter Features
Turn on Mode
DC Offset
Ground Isolation Options
Selectable Impedance Load
20, 60, 20k ohms
Remote Turn On Output
Remote bass/level controller
Optional (Accessory required and sold separately)
Specials with this Item
Warranty and Return Policy
Parts Warranty Duration
5 years
Labor Warranty Duration
5 years
Warranty Provider

Item Details


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Product and How-to Videos

Customer Ratings & Reviews

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Excellent Product

Easy to install and is a game changer with the quality of the sound. Night and day. Highly recommend.

By Anonymous on September 18, 2019 checkmarkIcon Verified purchase


found this helpful.

A MUST if you use an underseat sub...

I wanted to install an underseat powered sub (Cerwin-Vega VPAS10) in my wife's SUV so she would not attract thieves or lose any cargo space. The factory system was nice, it just lacked bottom end. I considered a PAC adapter so I didn't have to cut or splice wires, but I ended up using the LC2i from my other car and I am glad I did! The LC2i sends a strong 8V signal to the VPAS10, and that makes all the difference withe those units. The accu-bass was just a bonus for me, it allowed me to turn down the bass on the factory speakers and dial in the exact amount of bass without the door panels rattling; the sound was just so much cleaner. It was a night-and-day difference with the LC2i, clean voltage matters!

By Anonymous on February 10, 2019


found this helpful.

Great product

Excellent product if you want to keep your factory radio! Definitely a must have not a cheap product. A+++++

By David on March 22, 2018


found this helpful.

AudioControl LC2i - Black

This is an awsome Product!!!!!!! Totally Recommend it if you not swapping the the head unit

By Anonymous on June 25, 2018


found this helpful.

Simple and Effective

This was super easy to install and adjust. The difference in sound is night and day. The bass knob came with it for free. I love it.

By Jordan on March 21, 2020 checkmarkIcon Verified purchase


found this helpful.

AudioControl LC2i - Black

Works great. Gets the most out of your equipment. Bass especially

By Anonymous on May 12, 2018


found this helpful.

Best LOC I've used

I purchased this in order to keep the factory head unit while being able to add an amp for my two 12's. After reading many reviews I decided on the LC2i for the "GTO" and the nearly 9v preamp. I have used the cheap LOC in the past and they are miserable compared to this one. Spend the extra money. LC2i's 9V preamp into the amp compared to 2V or less from other LOC's means a cleaner louder bass. The most important feature is the accubass threshold and accubass adjustment to add in bass loss at higher volume levels. My recommendation, I would absolutely buy it again.

By JC on May 4, 2018


found this helpful.

Awesome piece

If you’re using your factory radio you need one of these. The signal is way better from the LC2I then those cheap $ 20 lines out converters. When tuned properly the bass is super clean. Knowing how good this works and how easy it is to set up I highly recommend this product well worth the money

By Eric on June 3, 2020 checkmarkIcon Verified purchase


found this helpful.

AudioControl LC2i - Black

This lc2i was an excellent purchase price is right and the amount of Base I get for my system now in my 08 Cadillac CTS 4 is incredible was not able to hook it up without the lc2 highly recommend

By Bear on April 24, 2020 checkmarkIcon Verified purchase


found this helpful.


I've installed several of these and they are awesome. Easy hook up (gto amp turn on is the greatest),great sound. Definitely recommend.

By Anonymous on January 13, 2019 checkmarkIcon Verified purchase


found this helpful.

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AudioControl LC2i

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs




• 2-Channel Speaker Level Inputs
• Adjustable xBOOST corrects for bass roll-off
• Handles up to 30V (225 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohms)
• Wired remote bass level control included
• LED Clip indicator



Related Products

This item is frequently compared to these items

NVX XLCA2 (Free Upgrade to XLCA2X)

• 2-channel line out converter
• Speaker Level Input Accepts Up To 400 Watts RMS
• Bass Enhancer And Bass Compensation
• xBOOST Technology
• Selectable Auto On
• 9.5 Volt Pre-Out
• 12 Volt Trigger Out



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