Skip Navigation

AudioControl LC6i

6-channel line output converter for adding outboard amps to your factory audio system (Gray)

38 Reviews | 2 questions - 8 answers

Item # 161LC6IG

This item is no longer available.

Shop all Line Out Converters

New model available

AudioControl LC6i




Our take on the AudioControl LC6i

The LC6i features six speaker-level inputs that let you connect amplified signals, including multi-wire cables from Bose® and other premium factory systems up to 400 watts. The LC6i sums all the signals you send it, even if they're actively crossed over by your factory system, so you get a strong, full-range signal for your processors and amps. The LC6i features six RCA preamp outputs that'll handle the traditional front/rear/sub setup.

Build a system around your factory radio

AudioControl's LC6i processor allows you to add aftermarket amps, speakers, and subs to your factory radio, so you can enjoy better sound without losing factory features. It accepts speaker-level signals from your factory radio or amplifier, so you can use it with any system.

LC6i system diagram

Inputs and outputs

The LC6i features six speaker-level inputs that let you connect amplified signals, including multi-wire cables from Bose® and other premium factory systems up to 400 watts. The LC6i sums all the signals you send it, even if they're actively crossed over by your factory system, so you get a strong, full-range signal for your processors and amps. The LC6i features six RCA preamp outputs that'll handle the traditional front/rear/sub setup.

Level matching is a breeze

AudioControl couldn't make it much easier to set up your system. Just set your factory stereo to about 3/4 of its maximum volume, and turn the output level control of the LC6i until the "Maximized" light begins to flicker. Adjust the gain controls on your amps and you're done. You've just matched your levels, so you can count on getting maximum performance and minimum noise from your amp setup.


The optional dash-mount subwoofer controller allows you to adjust the level of your sub channel on the go. The speaker-level inputs sense incoming signals and turn on the LC6i, while a built-in 12-volt trigger tells your amps or other gear to turn on.

Information provided by AudioControl


Product Highlights:

  • gray 6-channel line output converter
  • designed to work with any factory stereo
Inputs and outputs
  • 6 speaker-level inputs with 400 watts RMS power handling
  • 6-channel preamp level outputs
  • level matching controls
  • subwoofer level control output (for optional wired remote)
Other features
  • signal-sensing turn on
  • 12-volt turn-on lead output
  • internal signal summing
  • recommended fuse rating: 1 amp
  • 8"W x 1-1/4"H x 6"D
  • 3.5 pounds
  • warranty: 5 years
  • Our 60-day money-back guarantee

What's in the Box:

  • 6-Channel line output converter
  • Owner's manual
  • QC checklist
  • Product registration card

Exactly what i needed to get the amps hooked up to the factory radio.

Randy S, charlottesville, VA


AudioControl LC6i Reviews

Average Customer Review(s):

(38 Reviews)

The missing link

Steven from Campbell, TX on 4/15/2016

Crutchfield Customer Review (What's this?)

The Audio Control LC6i was absolutely the missing link for my audio issues in My 2014 Fusion. I replaced my paper factory speakers with Polk Audio 6-1/2" components in the front doors and Pioneer 3-way 6-3/4 in the rear doors. I then added Pioneer 3-way 6x9s in the rear deck location. I power it all with a 4-channel Pioneer for the door speakers and a Pioneer 2-channel for the deck-mounts. I also added a Bazooka powered 10" in the trunk for extra bass. The LC6i made installation and integration a breeze, reducing the task of balancing and overload avoidance a matter of minutes instead of trial and error over the course of days. The system sounds awesome and I haven't lost any of my SYNC functions or controls. I am very pleased.

Pros: Makes adding multiple components easy and effective.

Cons: None so far!

AudioControl LC6i

Randy S from charlottesville, VA on 3/28/2016

Exactly what i needed to get the amps hooked up to the factory radio.



AudioControl LC6i

Crutchfield customer from Delaware on 12/14/2015

Crutchfield Customer Review (What's this?)

This is the first time I am leaving the factory head unit in. The LC6i does everything that they said it would. It cleans up that factory mess coming out of the speakers. I have Pioneer components up front , Pioneer three ways in the back doors and a 10" Pioneer sub in the back. For now I'm running with Pioneer 4 channel amp.(hooked up three channel). The LC6i will let me expand very easy in the near future.

Pros: compact size, easy to adjust . This unit does everything that they said it would.

Cons: None to speak of.

got a bad one

ztech from California on 9/22/2015

I have used Audio Control several times in the past and they make good equipment but I got a bad one. I bought is over a year ago and finally got around to installing it. Unfortunately, the unit has a problem putting sound out sound from the front left output regardless of fader setting. I contacted Audio Control and they charge almost as much to repair it as the price of a new one. I learned a valuable lesson about waiting too long to install it. Audio Control does make top drawer stuff but this one was defective.

Pros: almost does what is supposed to do.

Cons: not worth repairing out of warranty

Don't buy a cheep loc get this one

Brianb from Murrieta, CA on 6/5/2015

Crutchfield Customer Review (What's this?)

I needed to upgrade the stereo in my 2015 Fusion I started with JL c2 speakers and a mid range amp and a pac line out converter. It was louder and a little better sounding than stock but had a horrible alternator whine through the speakers. After trying a few other things I bought this lc6I what a difference no alternator whine and much cleaner sound. I had some set up issues and called audiocontrols tech support wow these guys are knowledgable and extremely helpful which is very refreshing these days when you call some one for help and you actually get some one that knows what there talking about. If you need a line out converter buy this you won't be disappointed

Pros: Clean sound, quite when you want it to be, good tech support from manufauctur.

Cons: None

Just What I needed

Rob B from Centralia, MO on 6/1/2015

Crutchfield Customer Review (What's this?)

Working on a rear speaker replacement that had separate feeds to the rear as part of a Monsoon factory system. This unit allowed me to sum the signals, send to the Amp, then to the speakers for awesome sound. Also allowed for tuning of how much I wanted the signals blended. Tried the installation without this unit and was not satisfied. This was recommended by the Tech group at Crutchfield and is EXACTLY what was needed.

Pros: Worked just as it was supposed to, Really nice aesthetics, great instructions

Cons: Cost almost as much as a new head unit but would have lost my information center going away from factory.

Awesome piece

David from Littleton, CO on 4/26/2015

Crutchfield Customer Review (What's this?)

Crutchfield never lets me down. Helped me exchange my radio for something that would work in my new car.

Pros: Easy to connect, Childs play really, easy to adjust, and has optional cable for bass adjustment:-) and its small and compact and fit perfectly underneath my stereo:-)

Cons: Haven't found one yet;-)

Compliments the Camaro nicely!

Vincent from New Jersey on 4/2/2015

Crutchfield Customer Review (What's this?)

I now have a sub in my brand new Camaro, and this device is the best. I should of read all of the manual, because I ran a remote line to turn the LC6i and you don't need to (it auto detects speaker input, and turns the device on).

Pros: Cheap, Excellent Sound Quality, and Easy to Install

Cons: The price is too cheap for the high quality of this product :)


Raffi from Los Angeles on 1/2/2015

Works great in my 2014 Kia Optima Hybrid.



Excellent company and products

rew7602 from Concord, NH on 11/17/2014

Crutchfield Customer Review (What's this?)

The Audiocontrol LC6i OEM integration unit was exactly what I needed for my stereo upgrade. I wanted to add a 4 channel amp to my factory stereo and replace the component speakers in the doors and upgrade to 2 way speakers in the rear. I will eventually add another amp and subs to finish the system. The LC6i took the 2 front and 2 rear inputs from the radio and gave me a total of 3 outputs (front/rear/sub). The LC6i also has a remote in and out for switchable power to your amp. It is a good idea to use their remote turn on to avoid any popping when powering up the radio. Adjusting the amp and gain is quite easy . Turn the gain on the amp all the way down, the gain control is all adjusted from the LC6i. Unplug the RCA cables from your amp, turn the gain all the way down on all 3 channels of the LC6i and turn your radio up to 3/4 maximum volume. Turn the gain up on the first channel of the LC6i, when the little light starts to flash then the output should be properly matched. Fade all the way to the rear and repeat the process. That was it. You should have all the sound you want if you did everything right, and the sound is clean! If I pause a CD and turn it up to maximum volume there is no white noise at all.

Pros: clean sound, easy use, nice construction, US made, optional bass control

Cons: None as of yet

Very Impressed

C Weaver from Harker Heights, TX on 7/2/2014

Crutchfield Customer Review (What's this?)

I was advised to buy this product by the Crutchfield staff because I wasn't going to be replacing my stock head unit, yet I was updating everything else. Let's just say I'm in no rush to replace my head unit now. I love how the AC has a smart switching function that turns on the amps when it senses an audio signal but turns the amps and itself off when my system is off. Great functionality for the price!

Pros: -Auto-sensing turn on for itself and connected devices. -Price -Footprint (size)

Cons: -Connections for speaker inputs are incredibly small

Pretty good

hill from Baltimore maryland on 5/24/2014

Pretty good device

Pros: Sounds great easy to install

Cons: Only needed five channels

Ford sync looks stock now sounds professional

Joe from Milwaukee, WI on 5/2/2014

Crutchfield Customer Review (What's this?)

There are probably a 100 different ways to install the LC6i. I placed mine under my drivers seat and ran the front and rear speaker output from my ford escape basic sync head unit by cutting the wires and splicing in speaker wire. I ran a separate 12 gauge power wire from the battery with a 1 amp inline fuse. I didn't trust the unit to turn on with the GTO so I ran the switch from the fuse box with a 3 amp fuse tap. All the fuses inside the cabin were not switchable so I was forced to rub through the fire wall and tap into the ignition coil with an additional fuse tap. Don't wrap the wire around the fuse and try and jam it in that never works and may short out something really important. Adjusting the gains was easy just turn the head unit to 3/4 volume with high quality music. The red light should just flicker then return to normal listening levels.

Pros: I love listening to music in my car now

Cons: The device is much larger than I first thought. It runs on low power so you can place it anywhere.

6ch LOC with remote turn on wire

Sailwin from Rio Rancho, NM on 3/15/2014

Crutchfield Customer Review (What's this?)

Connect up to six speaker inputs, and get up to six component outputs. Simple to add in with an amp, and you can run this LOC as you remote turn on for the amp.

Pros: Covers just about everything I want out of an LOC, especially a six channel

Cons: A little pricey, and a few more wires to run, but worth it.

Bulletproof indeed

Benzovs from Tucson, Az on 2/4/2014

Crutchfield Customer Review (What's this?)

Ever since I was introduced to audiocontrol ( 1996 epicenter) I knew they were going to be around for a long time. They deliver quality and useful products time and time again. This line driver/ converter delivers solid performance at a bargain price. This thing is so easy to setup and install a monkey could do it, no offense to monkeys, and it works beautifully. I highly recommend this unit.

Pros: Small footprint, easy to use and install.

Cons: None

Lc6i / awsome !

F.C from Anchorage Alaska on 11/8/2013

Crutchfield Customer Review (What's this?)

I've just added this to my factory 2013 tundra w/ cover and 2 art series PPI amps . WOW !!!!! What a difference it made . A piece of cake to hook up instructions were easy to follow got it done under an hour . Ask around on a couple of shops how much to run power to LC6i . They all wanted $200 or more . If you can identify which of your wires goes form your unit to LC6i do it yourself and save $$$ . Read the instruction carefully step by step you should be fine . I had my 12 yr old son ask me if he could help all I did was guide him which wire to solder together and what's positive , negative and what remote does . To my surprise he got it all done we fired up the system and all systems go

Pros: Easy self explanatory instructions to each and every detail with or without after market accessories . Over all very please that I purchase the LC6i and I would recommend it to whom that like the stock on their system

Cons: None at all

American quality

Tony from Silver Lake Wi. on 9/24/2013

Crutchfield Customer Review (What's this?)

From the time i picked up the LC6I I could feel the Quality. Then I started to look through the instructions which were very well written with some sarcastic humor. All around awesome. If you want a refined sound system, you need this product.

Pros: American made with pride. good size and options.

Cons: none

AudioControl LC6i

Crutchfield customer from California on 9/2/2013

Crutchfield Customer Review (What's this?)

This is great for adding some subs and speakers without having to replace the stock radio



Pretty darn great...with one quibble

BriH from Portland, OR on 6/9/2013

Crutchfield Customer Review (What's this?)

This little fella was the perfect solution for dealing with a significant noise floor issue in my car that was present with any Class D amp I tried. Manipulating the output levels with the amp gains was the solution I needed. I do wish the 3rd bank of outputs was linked to the 1st and not the 2nd, though.

Pros: Easy to setup, generally solid construction

Cons: The input connectors are not very deep, so you need to keep your wire lengths short going into the device, and they overall a little strange to deal with.

AudioControl for my 2007 Tahoe

Ed W from Dallas, TX on 6/5/2013

Crutchfield Customer Review (What's this?)

This unit works great and is so easy to use. Simple instructions and easy to adjust.

Pros: simplicity! small package so its easy to find a hidden spot for it that is easy to access for adjustments.

Cons: None

2012 Camaro

Jimmy from Bartlesville, OK on 5/25/2013

Crutchfield Customer Review (What's this?)

Outstanding product, works very well with the factory installed stero. The sound quality is amazing, remote turn on that senses the high level inputs makes it unnessecary to tap into a switched 12v source for my amp which keep the alterations to the factory system down to tapping into the speacker wires! If you want to keep your factory look and functionality and be able to 6 channels of power this is a no brainner you gotta get this thing!

Pros: remote output for amp turn on that is stand alone requiring no switched 12v input to turn the unit on. Saves a splice into a switched source for both the unit and the amps---very cool

Cons: none that I have run across as of yet!

AudioControl LC6i

Crutchfield customer from Lebanon, Indiana on 5/22/2013

Crutchfield Customer Review (What's this?)

Lc6 did the job, everything sounds great!



Great addition

AH from Fort Worth, Texas on 5/17/2013

Crutchfield Customer Review (What's this?)

Great addition to my factory stereo. It really made tuning and adding amps easy.



Works Great

Chris S from York, PA on 11/4/2012

Crutchfield Customer Review (What's this?)

I've had amps and aftermarket stereos for the last 20-something years but this time I wanted to keep the factory head unit in my new Prius. This LC6i was the solution I needed and it works great, I use it to run low-level inputs into a 4-channel amp and a monoblock. I love the signal-sensing remote output for the amps and the separate sub channel it creates. It's very simple to configure and does exactly as it's advertised to do. I set it up as instructed, adjusted the amp settings as needed, and the stereo system sounds great! They say the head unit can make or break a good stereo system and I agree, but I think Audio Control once again comes to my rescue to make it all come together nicely and help create a clean source. Of course I can't avoid giving Crutchfield its due kudos. As always, a great experience.

Pros: Creates a clean source for the amplifiers with the factory head unit

Cons: Wish it was a little smaller


daniel from texas on 9/3/2012

Crutchfield Customer Review (What's this?)

as far as the trigger on switch its great,but the control range just was not what i wished for.

Pros: trigger on

Cons: variable range on volume switches

Keep your factory head unit - add amps, crossovers

Chester D from Lynn, MA on 8/16/2012

Crutchfield Customer Review (What's this?)

this product is slightly above novice level for installation. i highly suggest you do reasearch or condisder having it installed professionaly. however, if you have 6+ hours to spend, go right ahead. you will love it! upon installation, i tested the sound coming through the factory speakers and was blown away! NO WAY! this line out converter will take up to 6 inputs! that's right, 6!

Pros: great sound, great way to power up your factory head unit.

Cons: RCA outputs only. you need at least a 4 channel amp to run your front and rear speakers. i recommend a 5 channel amp with built in crossovers and a subwoofer to truly enjoy this product.

Worked Great in 08 Malibu LT

Steve from Near Austin, TX on 4/21/2012

Crutchfield Customer Review (What's this?)

This product was just the answer I was looking for. After a few days of owning my car I knew the bass was not cutting it, so I purchased a Kenwood amp to power a small sub. While better, it still lacked musicality and punch. A little research led me to the conclusion that an aftermarket deck was costly and complicated,(On-Star, XM, and steering wheel controls). I bought the LC6i and the ACR-1 remote bass knob, basic Focal components for the doors and coaxials for the rear deck and added a used 5-Ch Kicker amp along with a prefab Eclipse enclosure housing 2 12" subs in a sealed enclosure. Installed the brains under the passenger seat, all the speakers behind factory grills, and the amp and subs in the trunk, only thing I have to worry about is stashing my cell phone charger when I park my car, which defys expectations when you hear me pull up. It was a complicated install, more so for the speakers, but it does require removing the factory stereo and cutting into the factory wires, but it was well worth the effort. I can hear my music with the sunroof open on the freeway, feel the heavy metal kickdrums, and loosen the wax in my ears by tuning to Shade 45. I do recommend the remote bass control, I use it frequently based on song choice and system volume. To sum it up, if your car is intregrated and the sound is unbearable, this may be your answer.

Pros: Factory features and controls with much improved quality in just a few hours.


Honda Accord Note

Texas H from Dallas, TX on 4/9/2012

Crutchfield Customer Review (What's this?)

This unit does exactly what it is designed to do and is simple to install. Crutchfield's Data Sheets make it very easy. I only gave it 4 stars because it does not come with the sub volume cable and if your factory system reduces bass volume at higher levels and increases them at lower then you either have very little bass at high levels or to much bass at lower levels. Now for those with Honda Accords. If you have an Accord with Active Noise Cancelation you will have to disable it or you will hear a loud womp womp sound when driving. This is the active noise cancellation sending a very low frequency signal to the system that is greatly amplified by the sub. Disabling the ANC system is as simple as locating the 2 microphones in the cabin (1 up front usually by the map lights and one in the back usually on the back dash. look for a small hole in the back dash that is it). Once removed the system works great.

Pros: Easy to install and adjust. greatly improved over all system in my car

Cons: If you vehicle has active noise cancellation make sure you can disable it (Google is a good place to start). Really needs to the bass adjust none.


Felipe A from Puerto Rico on 3/29/2012

Crutchfield Customer Review (What's this?)

I had my Kenwood KAC-8405 amp hooked up through the speaker-level inputs with signal sensing turn-on and the sound was good but it lacked bass and image on higher volumes. Hooked up the LC6i and my speaker came to life, WOW. I bought the LC6i to add a subwoofer but my Soundstream 6x9's in my 06 Honda Accord sound very solid now. So lets see if I really need the sub...

Pros: Everything

Cons: Cannot think of any.

Great Product

DanM from Dallas, TX on 2/27/2012

Crutchfield Customer Review (What's this?)

Physically feels really solid, knobs and terminal blocks are high quality. Performed perfectly when tying into all 4 channels off my stock head unit. No noise / hissing, really clean signal. Perfect performance.

Pros: Everything functional.

Cons: A little big, and a little pricey.

Perfect for Factory Stereo Integration

Trent from Austin TX on 8/22/2011

Crutchfield Customer Review (What's this?)

I purchased this after making the mistake of buying the MTX re-Q5 for my 2011 F-150 with the premium stereo (no Nav or Sony). My goal was to keep the stock deck while still having a good sounding stereo and not sacrificing quality or features of the stock systems and Sync. I have it in the truck along with two Rockford Fosagte Prime amps, Boston SR60 components, Infinity Kappa coaxials, and one Kicker CVT 12 for bass. The LC6i handles this flawlessly and has very good (and kinda corny) instructions. It walks you through everything and is very easy to wire up. Adjustments and features are just enough for what I needed. All in all a fantastic product and I wish I would have bought it the first time around!




Andrew O. from Davenport, IA on 5/8/2011

I'm not sure why this product hasn't gotten all 5 star reviews, because I couldn't be happier. I had installed my 2 Alpine Type R's in my 2003 Chevy Impala with the factory head unit by themselves first and they sounded good, but they kind of drained out the music so I had to turn them down so they weren't really reaching their potential, until I purchased the LC6i. This thing is an absolute necessity if you plan on upgrading your sound system while keeping your factory head unit. It has got to be the most important component in my system. Highly recommended.



I Give Up with my Altima 2009

House from Texas on 10/9/2010

Crutchfield Customer Review (What's this?)

I give up This was my last try ,,,, this thing did not work with my factory radio, it sound better with the oem speakers,,, i am sad for this product that offer a lot and still the same decrease of bass or to much bass



Good Value, Okay performance

Rob P from Mount Joy, PA on 8/25/2010

I have a 2006 Audi A4 with the base stereo but I wanted to retain a stock look so this was naturally the place to start. The produce does what it advertises. It takes your signals from you stock speaker lines, sums them together, and gives you a full signal through 6 channels of preamp outputs. It also allows you to retain all of your stock functions such as steering wheel controls and Sat radio. The problem I find with this unit is that it creates noise in your system. You really have to fine tune your system to minimize noise and maximize output. Even when you set up as advertised and set your gains on the LC6i to the "maximized" setting there is still significant system noise and the gains had to be backed off. I was able to tune the system to eventually get minimal noise at an acceptable level. This, however, created a situation where I do not have as much output as I would like. I looked everywhere for the noise issue and all signs point to the LC6i as the culprit. I tried at least 3 different grounding locations for both my amp and my LC6i to no avail. The LC6i also has a built in Ground Loop Isolator so there should not be a ground loop causing this noise. If you want to retain the functionality and look of your stock head unit but upgrade the rest of your system this is a good product. I, however, am seriously considering now upgrading my head unit for better sound.



AudioControl LC6i

K.W. from Northwest Indiana on 3/28/2010

Crutchfield Customer Review (What's this?)

Purchased this product for 2009 Nissan that has a factory Bose system. The factory radio is connected to a factory amp which is located under the rear deck. The factory amp actively crossed over all the factory speakers. Ex: lows only for rear deck speakers, highs only for dash, and full range for door speakers. With the lc6i my installer took a signal from all of these (three in all) and sent them to the lc6i. The voltage the lc6i sends to my Alpine PDX is so high that I am able to turn the gains down very low and still get a very strong signal to my Type R components. If you absolutey need to or want to keep your factory radio on a newer vehicle and want to add after market amps/equalizers to acheive quality sound start with this product.



Great product but a small defect

Than from Woodbridge, VA on 7/23/2009

Crutchfield Customer Review (What's this?)

I bought this to use as a line output converter for my M3 because the car system's sub outputs were rated around 150W. LC6i was highly recommended so I tried it out thinking I could use the GTO to tun on my JL 500/1v2 amp. Wrong. It did not sense enough input I guess and would not turn on so I had to run a single wire from the front of the car for the remote in. Otherwise, all of my wires would have been in the back and would have made it easier to dismount. Once it is turned on though, the sound is amazing. I have my amp turned down pretty low and just used the output level on the LC6i and still hits pretty hard on my JL 12w6v2. I have the exact same setup in my IS350 without LC6i (using the Scosche LOC) and I could tell a huge difference that the LC6i made to the sound. Despite the GTO not working for me, I still rate it pretty high because it is an amazing product. I'll try it out again with another LC6i I am going to order for the Lexus to figure out if my first one is defective.



Cleansweep? Meh. LC6i? Yeah!

Kris from Seattle, WA on 5/13/2009

I know that the Cleansweep and LC6i serve different functions, but it wasn't until I removed the LC6i from my system to install a Cleansweep that I realized how solid the LC6i is. I couldn't have been more disappointed by the Cleansweep's performance, and I kept thinking to myself, "Can a line-output-converter make THAT much difference?" In short, yes. It sends very high quality signals to my two amplifiers, such that I can keep their gains dialed low, and get great great sounding audio from my stock head unit. I have, in fact, become so convinced in the quality of the AudioControl equipment that I returned the Cleansweep and I'm looking to the EQ6 and the 6XS as my next purchases. Skip the line-output-converter sold on this site and others. Save for the LC6, and you'll save yourself time, money and frustration in the long run. I also got the separate subwoofer control and am quite pleased with it as well. With all of my music being digital, it helps dial in appropriate subwoofer levels when switching albums.



AudioControl LC6i

Brian from Shrewsbury, MA on 3/19/2009

Great product! I had tried 2 other loc's and got alternator whine. I tried moving the ground, creating a new common ground with and without hu, nothing worked. Since I planned on eventually getting something like the Lc6i for channel summing anyway, I went ahead and ordered it, received it, installed it...silence! Nothing but the music. I had so much whine before that I was shocked at the total absence of noise. I'm summing 2 channels, driving 2 amplifiers, and using it to trigger those amps. Everthing is completely adjustable. I've been using it for 6 months now and am completely satisfied. Like I said, a great product.




Hands-on research

Product Research


Speaker Input: The speaker level inputs are compatible with nearly any factory stereo system, even most Bose systems. There are 3 pair of inputs that will accommodate up to 400 watts.

Channel Summing: The LC6i has the ability to sum together multiple input channels (4 or 6) from the factory source unit into 2 channels. This is handy when the factory system has multiple, actively crossed-over signals sent from the OEM source unit or amplifier(s). For example, in some vehicles there is an actively crossed-over tweeter, midrange, and woofer all in the front of the vehicle. The LC6i lets you take all of those signals and sum them together to get a high-quality, full-range, pre-amp signal without the use of any additional cables or hardware.

AutoMode Inputs: When there is no signal present at the channel 3 input, the channel 2 input automatically feeds the channel 2 and channel 3 outputs.

Output Level: The +/- 12 dB output level allows you to adjust the head unit's voltage to the top of your amp's input range; up to 9.5 volts RMS. Each of the three pair of  RCA outputs has its own level adjustment.

Auto Turn-on: The main speaker level input has a signal sensing circuit; the unit turns on when there's a speaker level input signal and turns off when the signal disappears.

Remote Output: The +12 volt DC remote output will trigger an amp to turn on whenever the LC6i is on. The remote's maximum current output is 1 amp.

Optional Sub Level Control: With the addition of an optional wired remote (161ACR1, sold separately), you can easily adjust the output level of channel 3, often used for a subwoofer.

Ground Isolation: The power supply ground is switchable, in case of ground loop noise. The factory position is fully isolated (typically the best choice), but can be changed to Ground or 200Ω.

Terminal Blocks: The power/ground/remote in/remote out terminal and the speaker level input terminals are removable; the wiring is attached to the block, then the block is plugged into the LC6i. The terminal blocks will accommodate wire up to 12 gauge.


  • Maximum Speaker Level Input: 400 watts
  • Maximum Output Voltage: 9.5 volts RMS
  • Frequency response: 10Hz-22kHz
  • THD: 0.01%
  • Input Impedance: 20 kΩ

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

great for factory head unit upgrade with subs [ CHRIS  Dec 04, 2015 ]

2 questions already asked

Yes, your tone control will still work but if you sum the channels (input 1 and 2) your fade control will no longer work. Yes, you can run a power lead from your fuse box, this is what I did. [ Jason  Aug 10, 2015 ]
Yes, tone controls will function as normal. Keep in mind, the LC6I is also a cross over and you will need to set frequencies respective to your speakers capabilities. If the amp has a cross over as well then male sure to match the frequencies accordingly. Power supply requirements are low for the LC6I so wiring to the fuse panel should be ok...a dedicated power source is always the right choice and never piggy back on another active circuit. [ CHAD B  Aug 09, 2015 ]
I used LC6 and amp to tune however your HU will also still work.? Power to LC6 actually can be done thru amp LC6 has a built in sensor that turns on when amp receives power. LC6 is the way to go for sure. [ SCOTT  Aug 08, 2015 ]
With the lc6i in my 2014 non navi civic Si all my factory options for head unit, hands free, Bluetooth etc work exactly the way they did before. I will warn you unless I did something wrong during the install there is like a distortion sound that comes from the new component and coaxial speakers that i was told is due to the larger amp. I've been told this by several local stereo shops, Crutchfield was assist me with that issue. I have power for my lc6i coming from my distribution block in the trunk [ Alison  Aug 07, 2015 ]
The tone controls will still work. This is a low amperage unit so any power supply should be sufficient however I do not recommend using a "piggyback" to power any accessories but the fuse box will have plenty of amps available to power the unit. This is a great product as an alternative to an aftermarket head unit. [ DOUGLAS R  Aug 07, 2015 ]
The advantage only exists if you are using a factory head unit. This unit can "sum" the frequency output of a factory head unit so that you hear balanced, full range, sound from all channels. If using an aftermarket, high quality, head unit I would not recommend adding this unit to your system as it is unnecessary. Chad [ CHAD B  Jun 24, 2015 ]
The sound quality and filtration is much better then any line converter I have used. I got two amps off of this from the stock stereo in my 2013 dart. No whine from the alternator or loud pops from turning on / off. You adjust this device to the output of the stereo and get a signal clip reference to provide maximum sound quality. I for one will never use a line converter again. ~Randy [ RANDY  Jun 23, 2015 ]
Factory head unit often have built in crossovers to each speaker. This sums up to 6 audio inputs to create a complete audio spectrum. [ MICHAEL  Jun 23, 2015 ]