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AudioControl LC7i

6-channel line output converter with bass restoration — adds aftermarket subs and amps to a factory system (Black)

Item # 161LC7IB

AudioControl's LC7i 6-channel line output converter (LOC) with bass restoration allows you to add aftermarket amps,...

Read more from Crutchfield writer, Buck P.

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$189.99

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About the AudioControl LC7i

Want to add your own speakers, subs, and amps to a factory system?

AudioControl's LC7i 6-channel line output converter (LOC) with bass restoration allows you to add aftermarket amps, speakers, and subs to your car's factory radio, so you can enjoy better and more powerful sound without losing climate controls, voice-activated functions, or other built-in factory features. The LC7i accepts speaker-level signals, so you can use it with just about any setup, even high-powered amplified systems.

Want to add your own speakers, subs, and amps to a factory system?

AudioControl's LC7i 6-channel line output converter (LOC) with bass restoration allows you to add aftermarket amps, speakers, and subs to your car's factory radio, so you can enjoy better and more powerful sound without losing climate controls, voice-activated functions, or other built-in factory features. The LC7i accepts speaker-level signals, so you can use it with just about any setup, even high-powered amplified systems.

Summing

The LC7i sums its input signals together, even if they've been crossed over for tweeters, mids, and subs by the factory system. That way, you can count on a strong, smooth, full-range signal for your processors and amps. The LC7i features six RCA preamp outputs that'll handle a traditional front/rear/sub setup.

Why you have to restore the bass

Many factory radios actually turn the bass down as you increase the volume to protect the cheap factory speakers, subsequently removing much of your music's power and punch. AudioControl developed a patent pending AccuBASS™ circuit that restores the bass the factory radio erased, giving you much fuller and more enjoyable sound. The AccuBASS is applied to the subwoofer output channel, so your sub amp can have the entire, restored signal to work with.

Level-matching with an LED indicator

AudioControl makes it easy: set your factory stereo to about 3/4 maximum volume, turn the output level control of the LC7i until the "Maximized" light begins to flicker, then adjust the gain controls on your amps and you're done. You've level-matched the output of your receiver to the amplifier's input, so you can count on getting maximum performance and minimum noise from your system.

Convenience

The optional dash-mounted ACR-1 wired remote allows you to adjust the volume of the bass while you're on the go. The speaker-level inputs sense incoming signals and turn on the LC7i, while a built-in 12-volt trigger turns on your amps as well. If your factory system only has channels for front and rear speakers, AutoMode™ will create the output you can use for your subs.

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Product highlights:

  • 6-channel line output converter plus bass restoration
  • 6 speaker-level inputs (each can handle up to 400 watts RMS)
  • internal channel summing
  • AccuBASS™ bass restoration circuitry
  • 6 preamp outputs (up to 8.5 volts RMS)
  • level matching controls with Maximized Indicator LED
Other Features:
  • optional wired remote subwoofer level controller available (#161ACR1)
  • AutoMode™ turns 4-channel input to 6-channel output
  • GTO™ signal-sensing turn on
  • 12-volt turn-on lead output
  • recommended fuse rating: 2 amps
  • 8-11/16"W x 1-3/8"H x 6-9/16"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # 841-072-8
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What's in the box:

  • 6-Channel line output converter (black)
  • Owner's manual
  • QC checklist

Customer reviews

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AudioControl LC7i Reviews

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More details on the AudioControl LC7i

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Features

Six Channel Line Output Converter: The AudioControl LC7i is a six channel active line converter which allows you to keep your factory installed source unit in your vehicle and still dramatically improve your car audio system performance. The LC7i accepts up to six channels of speaker-level signal from factory installed amplifiers or a source unit and converts it to a high quality, after market low-noise, pre-amp level signal that can be fed to amplifiers and speakers.

AccuBASS: The LC7i fixes one of the biggest letdowns of today's factory systems, weak bass. Designed for maximum sound quality and enhanced audio performance, the LC7i incorporates AccuBASS. This patent pending process automatically corrects for the bass roll-off that is common with many factory-installed audio systems and AudioControl's unique and exclusive AccuBASS patent pending circuitry maintains and restores the Bass as the volume is turned up, improving the audio performance.

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 LC7i 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 LC7i 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 8.5 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.

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.

Remote Output: The +12 volt DC remote output will trigger an amp to turn on whenever the LC7i is on. The remote's maximum current output is 1 amp.

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 LC7. The terminal blocks will accommodate wire up to 12 gauge.

Optional Remote Control: Using the optional ACR-1 wired remote (161ACR1, sold separately) you can easily adjust the output level of channel 3 of the AudioControl LC7i, often used for a subwoofer. The remote is designed to be dash mounted, within reach of the driver; it can be mounted under the dash with the supplied bracket, or the bracket can be removed and the knob and LED can be custom mounted through the dash.

Specifications:

  • Maximum Speaker Level Input: 400 watts (at 4Ω)
  • Maximum Output Voltage: 8.5 volts RMS
  • Frequency response: 10Hz-22kHz
  • THD: 0.01%
  • Input Impedance: 20 kΩ
  • Output Impedance: 150 Ohms

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
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was recommended by crutchfield [ aaron  Mar 04, 2019 ]
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I choose the Audio Control LC7i because it quiets noise when running an amp for component speakers. Audio Control is the best!!! [ SAM  Mar 02, 2019 ]
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many people recommended it for its good performance and less expensive price. [ Dennis  Feb 26, 2019 ]
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I am wiring three amps into my factory Jeep radio [ Joseph  Feb 06, 2019 ]
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Add a sub to my mustang base 17' [ Daniel  Dec 16, 2018 ]
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it will help restore bass that is rolled off by the horrible factory honda amp as well as to flatten the signal. [ Fernando  Dec 04, 2018 ]
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Crutchfield had it at the most competitive price. The thing that sealed my decision is the unparalleled support I received from my Crutchfield advisor! [ David  Nov 22, 2018 ]
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2017 Ford F150 non-Sony head unit speaker level outs to 2xAlpine amps (4 channel, and mono for sub), remote turn on through speaker sensing causes occasional thumping noise through the system when opening doors after car has sat for a period of time, Should be able to eliminate this by supplying signal to amp speakers via RCA's, with remote turn on through regular 12V input. [ Ken  Nov 14, 2018 ]
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I chose this because it is the best audio solution for my 2018 Ford Fusion. I was given an excellent product recommendation by a Crutchfield representative. [ J  Jun 03, 2018 ]
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Recommended by Dino [ STEPHEN R  Apr 21, 2018 ]
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Advised by Francis ! Audio advisor [ ROBERT E  Feb 16, 2018 ]
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I had a previous system with high quality aftermarket amps and speakers running off a stock head unit. It sounded good, but not great. After reading several reviews I took a chance and added the LC7i to my system. It improved the sound, but still wasn't what I expected. After contacting AudioControl customer support, which was amazing by the way, they were able to help me make some tweaks and adjustments. The final results were fantastic. It was like upgrading every component at once. [ Paul  Jan 07, 2018 ]
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It was recommended by Peyton (the advisor who helped me) to get this product to make my system work with my stock stereo. I've never used one before so this I'm curious to see how it works. [ KHRISTAPHER  Dec 30, 2017 ]
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I've used AudioControl products before. They are the most versatile for aftermarket and factory systems! [ David  Nov 04, 2017 ]
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Wanted it [ WILLIAM  Oct 02, 2017 ]
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To keep factory radio and add 2 amps system to my car. [ Juan C.  Jan 16, 2017 ]
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I have used this on two installations for Sprinter Vans, very good price and really cleaned up audio from stock stereo system that was very poor quality. Wired it into a decent 5 channel amp and ended up with very good sound. [ Korey  Jan 09, 2017 ]
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After speaking with Norm this was the best thing to add to Oem radio to add subwoofer. [ L  Dec 23, 2016 ]
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I wanted to keep my existing stock radio in my 2015 accord but and a little bit more power to the radio with my JL amps. [ THOMAS A  Dec 23, 2016 ]
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Wanted to have the option to upgrade my car speakers in the future. I purchase the LC2i before but returned that to buy this [ Victor  Dec 21, 2016 ]
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Better factory sound. Eliminate hum from cheap converter [ Troy  Dec 10, 2016 ]
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Heard great reveiws about this product. Upgrading a factory unit. [ Richard  Nov 30, 2016 ]
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Great add on... [ ron  Nov 20, 2016 ]
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This allows me to add aftermarket amps and keep my OEM touchscreen in place. OEM look, aftermarket performance! [ M  Sep 30, 2016 ]
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Saw a youtube review. [ Rosa  Sep 29, 2016 ]
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to get a better sound simply because im using my factory stereo [ trinidad  Sep 11, 2016 ]
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I wanted to get a better bass sound from my subs and after market speakers with the two Amps and Capacitor that I have installed with the factory head unit. [ Juan Alberto  May 12, 2016 ]
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Allows me to not have to splice my entire harness in my new truck in order to enjoy products from Crutchfield. [ Kenneth  Dec 17, 2015 ]
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16 questions already asked

Q
Is there any such device that can be installed into a factory radio to increase the bass of the 4 aftermarket speakers I have? I have two in the door and to in the rear deck of my 2014 Dodge Challenger rt. I also have 2 factory tweeters installed in the front left and right deck of my car.
[ Matt  Feb 18, 2019 ]
1 answer
A
Sorry, no. You can install a processor to provide more audio adjustments and a better EQ but you would also need to add an amplifier to accept the processed signal and power the new speakers. Another option would be to add a dedicated subwoofer to the system. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
[ Ryan  Feb 23, 2019 ]  Staff
Q
Do I need this If I already have a Pac Amp Pro4 already installed from my factory headunit? I was told this would not change my sound much. The LC2I I had worked great for a previous install at keeping my (subs) bass from dropping thats all. What does this do different, other than just control more channels? 2014 Toyota Tundra Crewmax Platinum JBL sytem Pac Amp Pro ap4-ty12 Pioneer D9601,8604 Alpine SPR-60C front & rear Pioneer TS-SW3002S4 subs (2)
[ DeJuan  Jan 05, 2019 ]
2 answers
A
DeJuan, I am not really a person who has the answer to your question. I had a Crutchfield professional help me with my order and selection. I dealt with Francis, who was very knowledgeable :-) I must say, I love my system choice !
[ ROBERT E  Jan 15, 2019 ]
A
I bought this in Feb. for my 2015 Ford mustang base model so it had no factory amps installed. I am not familiar with your knowledge on audio installs so i will just share everything i know so sorry if you already know it. The LC7I line output converter or any line output converter (LOC) for that matter basically ties into your factory head unit and gives you your leads to send the rca signal to your amp. Its basically the same as the LC2I Except it can control more channels. In your case with a truck that came with an amp factory installed (if i understood correctly) and using the Pac Amp Pro ap4-ty12 used for upgrading from a factory amp to something beefier you shouldnt need the LC7I. The only reason you would need this is if you were doing a full install as in replacing all speakers in your Tundra. If you were doing this you would need more RCA outputs than the Pac Amp Pro provides. My knowledge is limited but i hope this helps.
[ Garrett  Jan 13, 2019 ]
Q
Can I use this unit for my after market amps and after market hu or does it only work with oem?
[ Quintyn  Sep 15, 2018 ]
6 answers
A
Yes, it will work with aftermarket amps, and both aftermarket AND OEM head units... It's also excellent at converting OEM digital systems to aftermarket analog where the use of multiple amps may be needed... I used the LC7i to convert the digital signal in my 2016 BMW X6 (F16) Harman Kardon system to analog to 3 separate multichannel and 1 mono amp, while maintaining the factory 5.1 surround sound... Sounds excellent , no problems at all...
[ Daryl  Sep 19, 2018 ]
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Yes you can use it with your after market equipment
[ Antonio  Sep 17, 2018 ]
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Not sure what kind of vehicle you have. Mine is in my 2017 Chevy Silverado 2500. The factory Bose system turns the bass level down as you increase volume. This remedies that. If you're not going through a factory amp, I don't see the need to use it.
[ 432bartman  Sep 15, 2018 ]
A
Tho most installs with a after market hu generally do not need a line out converter you can use this 8 channel active line out converter to amplify the signal and sound to your needs. If you are going to purchase this unit I would recommend setting each channel weather it is low, miss, or highs separate so you do not clip your aftermarket amplifiers or speakers. This is a very good product and I am very very happy with the results. Hope this helps you out.
[ JAMES  Sep 15, 2018 ]
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you can but any eq from the aftermarket hu will be cancelled out. the lc7i's job is to make a flat response from the oem hu eq that usually wreaks havoc on setups when the oem hu isnt replaced.
[ Zach  Sep 15, 2018 ]
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This will work perfectly with aftermarket amplifiers
[ Kenneth  Sep 15, 2018 ]
Q
I have BMW's famous Basic stereo system without an amp. It consists of 4 front speakers connected to the same front left and right channels (2 front door 4 inch speakers and 2 under seat 6.5 inch woofers, that i think are full range, And 2 rear deck high pass filtered speakers) What i need to know is what's going to give me a better output, using the same front channel for Main and Channel 2 of the device and sum them up using the summing feature, OR use Both front and rear channels and also use the summing feature? The 2 rear speakers almost seam useless because i can turn them completely off and not notice a difference from the driver's seat. Or is there a better product out there that solves this problem. (by the way, I'm trying to use a 4 channel amp to power 2 speakers using 2 channels and 1 sub using the other 2 bridged) Thanks!
[ Jeries  May 15, 2018 ]
2 answers
A
I have a 2014 Hyundai Sonata. I kept the factory stereo and the two dash speakers. The two dash speakers run from the factory stereo. I used dynamat on all four doors; replaced the four door speakers with focal 6.5" speakers. I have them powered by a soundstream amp. I have a JL Audio powered subwoofer with two 8" subs. I use the audiocontrol line output converter to control the sounds to the four 6.5 in the doors and use the subwoofer output to control the amp on the JL box. The audiocontrol does an outstanding job of cleaning up the sound coming from the factory stereo. The dynamat keeps the sound extremely clear. It actually is the best quality sound that I have ever heard in a car stereo system. It is not eardeafining nor does it shake the mirrors in the car, but the sound is like listening to high quality stereo headphones inside the car.
[ david m.  Jun 08, 2018 ]
A
For more personalized assistance pertaining to your specific vehicle, please contact an Advisor directly by phone (888.955.6000) or online chat. They can go over the options for installing the LC7i in more detail to ensure everything will work as you hope in your BMW. Thanks!
[ Larry  Jun 05, 2018 ]  Staff
Q
Is there a harness that I can plug into my factory amp harness that will bypass the factory amp so I can use the LC7i?
[ T-Mills  Mar 30, 2018 ]
4 answers
A
I didn't install the unit myself, someone else did...
[ ron  Apr 12, 2018 ]
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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.
[ Krissy  Apr 10, 2018 ]  Staff
A
No, you need to utilize the factory amp outputs to feed into the LC7i. That way you can sum all the channels and the LC7i will provide you F,R, and Sub pre out. Most Factory inputs into the factory amps are extremely low level and the LC7i will not detect them sometimes. Also if your system is Can-bus or data , the volume/ steering wheel controls only work at the factory amp.
[ WAYNE  Apr 09, 2018 ]
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I suppose it would depend on your vehicle but probably not. I ended up having to cut the speaker harness off from the back of the factory radio. My radio had two harnesses - one for power, ground, dimmer, etc. and one for the speakers so be careful which wires you cut if your radio only has one harness - you don't want to cut the power or ground wires. I spliced into the speaker harness and used 9-wire to run to the LC7i (2 wires for each speaker - front/rear). I also replaced my factory speakers so I just ran new speaker wire from the aftermarket amp to the speakers rather than trying to tie back into the factory wiring - that way I ended up bypassing the factory amp. If you decide to go this route, be sure you don't cut the wires too close to the harness so you can reconnect the factory speaker wiring in case you want to sell the vehicle and keep your audio equipment.
[ Jason  Apr 08, 2018 ]
Q
wouldn't it better just to get an equalizer ?
[ Master  Mar 04, 2018 ]
4 answers
A
Yes, or so I thought. The LOC was an easier install because of how my 09 Acura TSX is setup. I added an equalizer afterwards, but it had to be modified to work with the system. It was done by a professional.
[ Kerrick  Mar 05, 2018 ]
A
It would depend on the setup your using. If your running an aftermarket head unit then this will work out for you sense some pioneer decks have nice built in EQ's. If your using a stock radio but will use some of the better higher quality amps like JL audio, Rockford, Memphis that have nice but in X overs in them then I would use this just to provide a clean signal to the amps.
[ THOMAS A  Mar 04, 2018 ]
A
I had a pretty high powered EQ built into my Kenwwod touch screen so I didn't need it. I put amps on my Sub and one on my interior speakers. It sounds fantastic.
[ WILLIE  Mar 04, 2018 ]
A
In some cases maybe but in others, no. Factory audio systems often are doing processing based upon speed, ambient noise levels, and more. This helps clean that up and makes the sound more consistent. Also, it has a number of preamp outputs to make it that much easier to install amplifiers as well as adjust the output level for it.
[ STEVEN S  Mar 04, 2018 ]
Q
What is the difference between this item and a sound processor such as the FiX86?
[ JOEL  Sep 18, 2016 ]
1 answer
A
I am very happy with the Lc7i installed in my vehicle my sound system sounds great
[ FRANK  Sep 19, 2016 ]
Q
I have a 2013 Ford F150 with the factory head unit and speakers. I would like to add an amp and sub. How would I accomplish this with this unit?
[ jaywill100  Aug 31, 2015 ]
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Sep 01, 2015 ]  Staff
Q
I have a six channel highs amp running separately my two front tweeters on two channels, front Mids another two channels, rear Mids on the last set of two channels...and a mono bass amp running two subs....will this product be able to run all these separately as my highs and mono bass amps do ?
[ paul  Jun 04, 2015 ]
2 answers
A
Yes. It modulates every input from the receiver. So unless you have 2 head units then you're good.
[ MICHAEL  Jun 04, 2015 ]
A
No .... this product is for create an extra channel in factory radio and create RCA output.
[ GERARDO  Jun 04, 2015 ]
Q
What size wire should I use for the power and ground?
[ Nic  Apr 11, 2014 ]
1 answer
A
I forwarded your question to an Advisor and they responded with the following: The terminal blocks will accommodate wire up to 12 gauge, but this device uses very little power, and you could also use just speaker wire as well. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
[ Krissy  Apr 13, 2014 ]  Staff
Q
I'm going to run my front speakers to Channel 1 and rears to Channel 2. I understand that Channel 2 will send a sub out signal to channel 3 line out. However, will channel 2 also output line level at the same time so I can run it full range to my amp to power rear speakers? Thanks.
[ Bill  Apr 29, 2015 ]
3 answers
A
Yes, that is exactly how this unit functions. You can also just run a single stereo signal and it will pass that to all 3 outputs.
[ Samuel  May 02, 2015 ]
A
Yes. That's exactly what I did and it works great. I'm running all Alpine amps, front and rear speakers and a sub. Channel 3 signal to a mono amp and the front and rear signals to a 4 ch amp. The LC7i allows you to dial it in the amps perfectly. Great product.
[ Bruce  May 01, 2015 ]
A
Yes, channels 1 and 2 have their own low level output. In addition to these, you will have an extra low level channel that you can use for your subwoofer amplifier. You can run 5 channels out of the lc7i by only inputing 4 high levels.
[ A N  May 01, 2015 ]
Q
Do you connect the lc7i before or after the factory amplifier?
[ Kelly  Jun 15, 2014 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the install. 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: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
[ Krissy  Jun 15, 2014 ]  Staff
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