AudioControl LC2i PRO Line Output Converter 2-channel LOC with AccuBASS&trade;

What is the frequency on the bass output? And what frequency does the accubass adjust?

Hey Devon, you can do most of your tuning on the LC2i, but you will still need to adjust your gain as well since that is what introduces noise into your amp.

red May 08, 2025 (Staff)

fpmc doc il May 06, 2025

By past LOC and tested amp and amp is working, no sound coming through LOC Pro 2. tested with RCA to a working speaker no sound. very frustrated. tested volts and oms all good but no results out of LOC ?

The AudioControl LC2i PRO's AccuBass processing corrects bass roll-off found in many factory radios, Kenneth. The AccuBass is adjustable but does not list any specific frequency it focuses on. AccuBASS threshold determines when AccuBASS turns on, and AccuBASS Level adjusts how much bass is restored. The Bass RCA output features a 1000hz low-pass signal.

bo May 06, 2025 (Staff)

jeff Apr 15, 2025

Using the bass output on the Lc2i Pro can I use a rca y-adapter and get signal to two mono sub amps?

Greetings Jeff. Sorry you are having a difficult time with your LOC. Seeing as you did purchase the LC2i Pro from Crutchfield, please contact one of out technical support specialists for your issues. Their number will be on the shipping confirmation email we sent out to you.

thomas Apr 16, 2025 (Staff)

wyatt Sep 10, 2023

Does the Lc2 i product come with everything ti hook up to stereo?

I see no reason why not, Wyatt. I would make sure to use high-quality Y-adapters like the EFX Delta series in the link below! I also personally prefer the EFX RCA's as they have a really tight fit on the barrels and will not jiggle loose over time. https://www.crutchfield.com/p_142DFF/EFX-Delta-Series-Y-Adapter.html

bo Sep 10, 2023 (Staff)

james Mar 11, 2023

Ok this might sound dumb, I have a 2019 ford flex and I am upgrading all door speakers and tweeters plus 2 10" subs. Now I know I need this loc since my head unit has no outputs. But my question is, How will my speakers get powered by the amp? If I'm only tapping in to both rear doors for the loc, then to my amp. Will this give the amperage ? Or would I need separate wires from the amp straight to the speakers ? Or dise this loc so all that? I'm a bit confused.

The AudioControl LC2i PRO 2-channel line output converter comes with the ACR-1 Level control, and the 16.5' Level-control cable (RJ-14), James. Every car is different, but you can set yourself up for success on install with the items in the links below. First is the Wiring Kit for Processors and Low-Current Devices in the first link. This is just like our paired wiring kits for amps, just mini-sized and perfect for the LC2i PRO! Second link below is some 16-gauge bulk speaker wire. You will use this for signal wherever you "tap" in. Make sure you choose around 40-feet or so if you need to run from the radio to the trunk! The third link is for Posi-taps, these will allow you to "tap" in without cutting any factory wires. Grab all three and it is a recipe for success! https://www.crutchfield.com/p_700DSPLOC/Wiring-Kit-for-Processors-and-Low-Current-Devices.html https://www.crutchfield.com/p_007CSW16/Crutchfield-Speaker-Wire-16-gauge.html https://www.crutchfield.com/p_669PP502/Posi-Products-Car-Speaker-Connectors.html

bo Mar 11, 2023 (Staff)

daniel Feb 17, 2023

I have a 21â?? dodge challenger would this work for my car?

Our advisors would be happy to review your project and offer advice on the LC2i Pro or any other solutions that may be applicable to your system. You may reach our advisors via online chat or phone at 1-800-324-9695.

zachary Feb 17, 2023 (Staff)

gary Dec 28, 2022

i can't get mine to turn on i've tired all the settings i checked the wires and i get 12v so i tried putting the power wire into the remote in and it blinked red once but i can't get it to turn on again or at all?

Yes that line output converter is universal so you can add it to the stock system of your Challenger. If you have any follow up questions about your specific set up we have experienced advisors available at 800.324.9695 so please give us a call and we will get you taken care of!

arielle Dec 28, 2022 (Staff)

corbin Dec 16, 2022

How do i connet this to an epicenter?

If you purchased the LC2i PRO from Crutchfield, feel free to contact our Tech Support team. They can review the install 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.

zachary Dec 16, 2022 (Staff)

uryel Oct 25, 2022

How would you wire the speaker wires to the LC2i pro if your adding a sub amp as well as a 4 channel amp for the doors ?

If you are going for massive, deep bass Uriel the AudioControl Epicenter below is the ticket. You can simply connect the bass output RCA to the inputs of the Epicenter, then the outputs of the Epicenter to your subwoofer amps inputs. https://www.crutchfield.com/p_161EPICEB/The-Epicenter-by-AudioControl-Black.html

bo Oct 25, 2022 (Staff)

liiboy Oct 15, 2022

Would you connect to wires for front or rear speakers in a 2020 ram 2500? I have it connected to wires behind head unit for front door speakers but just running it to amp and subs under rear seat. Gonna add bigger 5 channel amp and more mid range and tweeters to the sun box and not sure the front door speakers are a full range signal.

Greetings Liiboy, and thank you for your question. The LC2i is a 2 channel line converter, you can add a 4 channel, and a sub amp, you would just not have any fade on the front and rear channels. For wiring help, please call our technical support line. You will, have a direct number on your shipping confirmation email if purchased from Crutchfield. If you purchased this elsewhere, you can call Audio Control at 425-775-8461

thomas Oct 15, 2022 (Staff)

gregory Oct 06, 2022

I have a 2013 Lexus ES350 that has a factory built in amp. I want to add a separate 12" after market sub and amp. I have the LC2I Pro but I am not sure if I get the signal from the head unit of from the factory amp? I planned on tapping into the rear door speakers for the signal. I also heard of others tapping into the factory rear subwoofer. Any help would be great.

We may need more information to accurately answer this question. Please reach out to our advisors via chat or phone at 1-800-324-9695. They'll be able to assess the factory installed audio package in order to offer the proper advice for your project.

zachary Oct 06, 2022 (Staff)

jason Sep 12, 2022

What gauge wire should be used for the line in to an amp?

Greetings Jason, and thank you for your question. Some might connect it to the factory subwoofer signals, but thats really not best as just low frequencies go thru that. Audio Control recommends connecting to a full range output, that will enhance the bass restoration process of the LC2i.

thomas Sep 12, 2022 (Staff)

patrick Jul 31, 2022

Can i use it on a 5 channel amp?

We tend to use 18 AWG wire for speaker-level inputs as well as for power and ground connections.

zachary Jul 31, 2022 (Staff)

ferdi Jul 11, 2022

Can low-level inputs be used vs. High Level as an audio source?

Greetings Ferdi, and thank you for your question. The LC2i Pro has both full range and bass only outputs. You can use it with a 5 channel amplifier, but you will lose front to rear fade, and you might need to use RCA splitters depending on the 5 channel amp.

thomas Jul 11, 2022 (Staff)

james May 13, 2022

Can I use a 1600 watt max amp on this?

Use tour high level inputs for better sound. Low level input is only about 4 volts. High level input is 10 volts. If you are using a newer amp and a factory radio, I definitely recommend to high level input. Low level is old tech with rca's, if tou want a cleaner better sound, go high level input.

christopher May 13, 2022

austin May 09, 2022

Can I use a 1600 watt max amp on this?

This just converts your stereo's speaker wires to rca cables for your amp(s). You can also clean up your signals to your amp(s) a little from this device as well. So to answer your question, yes, you can use that amp (or any one really) with this.

james May 10, 2022

austin May 09, 2022

Can I tap this into the rear deck speakers in the trunks my Dodge Charger has front dash speakers front door speakers and rear deck speaker in the trunk can I tap this into them?

Should work great. Your amp will actually receive its full restored base signal from this device through the RCA outputs. Then it's up to you to run your amp tuning procedures to avoid clipping your amplified signal

lance May 12, 2022

Maybe I will get canceled for this answer but what do you mean by can I use a 1,600W amp(lifier) on this?

scott a May 11, 2022

Yes

rynn May 11, 2022

austin Feb 12, 2022

Can I tap this into the rear deck speakers in the trunks my Dodge Charger has front dash speakers front door speakers and rear deck speaker in the trunk can I tap this into them?

Any speaker input should be fine for adding a sub amp. Short answer is Yes, you can tap into the rears.

kenley Feb 12, 2022

yes

scott a Feb 12, 2022

Yes you can, just make sure your polarity is correct. Thanks

gualberto Feb 12, 2022

You should be able to. This accepts speaker level inputs up to 400W per channel.

robert Feb 12, 2022

austin Feb 12, 2022

2 answers

I used my rear deck speaker worked just fine.

kertton Feb 12, 2022

Yes you can. You can also use signal sensing on the unit to turn it on and not have to run a dedicated remote wire.

jason Feb 12, 2022

Will this work in a Toyota Camry 2021 7 in ch radio ?

osmani Jan 02, 2022

Can I use this on the 4 speakers and a sub on 2 amps?

If you can access the speaker wires, it will work.

jody m Jan 03, 2022

It will work on any vehicle. All you have to do is tune it.

scott Jan 03, 2022

Yes

juan Jan 02, 2022

You only need to tap into the front or rear factory speakers and you're good.

johnny Jan 02, 2022

daniel Dec 30, 2021

my lci 2 pro has constant power but won't turn on and I can't figure out why, has anyone else had this issue?

Probably yes but your question is kind of awkward and does not provide nearly enough detail to say for sure. Try describing what your current system is and what you want the end result to be.

scott a Jan 03, 2022

Yes but you will need a splitter for the RCA cables.

duff Jan 01, 2022

You definitely can , your sub will even have its own controls.

michael Jan 01, 2022

valerie Nov 21, 2021

Is this better than the kicker keyloc?

Power and remote turn on power check your connection

kertton Nov 21, 2021

trenton Oct 08, 2021

Can I use this to get a remote turn on signal sent to my amp?

I am not sure it is better but it is different because the keyloc is more like a DSP box where the LC2i is more like a typical line out converter. It really depends upon your particular system and what you need to do. I chose the LC2i because I was only trying to upgrade a factory subwoofer and I needed a separate remote level control for the new sub. It looks like the keyloc does not have a separate remote level control so I would not use this unit to drive a signal for a subwoofer amplifier. If your vehicle has a factory DSP system the keyloc might be a good choice if you need to restore a full range signal if for example you are upgrading the front door/dash speakers and plan to drive them with a separate amplifier. In that case the keyloc would give you a solid clean signal to work with.

scott a Oct 10, 2021

I haven't used the kicker loc, but after going over that item, I can't say one would be better than the other. They are both very nice units. To me, it appears it's more about what you're after. The kicker seems to do most of the tuning automagically whereas the LC2i you have the control in the tuning. I'm sure you'll be happy with either of them, best of luck!

james Oct 09, 2021

I haven't used the Kicker keylock. This LC2i seems like the standard that everyone buys, for good reason. I'm also using the kicker KX800.1 which didn't do a very good job with converting the high level into low level. My truck has premium sound that's already amplified. The LC2i does what it says it will do.

robert Oct 09, 2021

By far man. Audio Control is the best in the business for output converters. That's their main seller. Much better customer service too. The lc2i pro has a cutoff of 20hz too so you can get the low notes. The lc2i pro does more than the kicker keyloc.

adrian Oct 09, 2021

chris Jul 12, 2021

Will this work for 2012 a4b8 with bang and olufsen system for adding after market amp(bass roll off solution) and should tap the door speakers or the factory rear bass speaker wire?

Yes

jeffrey Jul 17, 2021

Yes this works great to turn on amps

kertton Jul 13, 2021

Yes you can.

emanuel Jul 12, 2021

ciso May 27, 2021

5 answers

Yes

rodney May 28, 2021

You should tap the factory rear speakers

travis May 28, 2021

Yes but after using it in my setup , I wish I would've just upgraded the head unit as it doesn't give me the sound I wanted

noel May 27, 2021

Not sure about your system, but there is an adjustment on the LC2i unit which will solve the bass roll off problem. I tapped into the rear deck speaker output and the unit works well. However, this unit comes with an adjustment knob as did the subwoofer I bought. I had to use the subwoofer adjustment knob because the knob provided with the LC2i caused a lot of noise. Not sure why that was happening, but using the sub knob worked for me.

jody m May 27, 2021

Should work. I installed in in my 2013 VW Jetta with the Fender premium audio package. I tapped into the existing bass wires that ran to my stock 8" sub. Sounds great other than having to add sound mat so my trunk doesn't rattle. Good luck!

ryan May 27, 2021

It has a main output and bass output does that mean i can install 2 aftermarket amps. One for my sub (thru bass output) and another for a 4 channel amp (thru main output)?

fernando May 05, 2021

2 answers

Yes

gualberto May 05, 2021

Yes you are correct you can install two amps from this unit.

kertton May 05, 2021

Where would I tap into in a 2021 corolla since it doesn't have a factory sub?

hunter May 01, 2021

Will this work in a 2020 Grand Cherokee with factory sub? I want to add an additional amp and sub.

You can tap into the rear deck speakers for signal and then from the LC2i to either your crossovers or amplifiers. The crossovers are optional as your amps do have their own built into them for high, mid, low.

james May 18, 2021

The technician tapped into both tweeters by the front windshield, those covers pop off. I was told that most all in one subwoofers don't need this device as our cars don't fluctuate the bass based on the volume.

ernest May 18, 2021

ask tech support for a wiring diagram for your vehicle and find a pair of factory speaker outputs, for example if the rear deck has factory speakers those would be the input signals for the LC2i or maybe the rear door speakers, avoid tapping into separate tweeter wires because the signal may not be full range, the LC2i does have a bass restoration setting but you still need to tap into a PAIR of woofer speaker wires IF your system does not have a mono sub output

scott a May 18, 2021

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. 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.

kristina May 18, 2021 (Staff)

mike Feb 23, 2021

6 answers

I don't see why it wouldn't. I bought this for my 2015 GC w/ factory sub and it works great! Glad to see you're looking for a quality LOC, the cheap ones will just give you headaches! The only small hiccup on my install was finding a source.. I ended up stealing signal from the factory sub as I felt it was the easiest and least invasive signal to steal. That side panel is kind of a pain to remove, but worth it in the end. Oh, and if you leave the factory sub hooked up as well and you find your sub doesn't sound quite as powerful as it should, reverse the subs polarity. Happened to me! They were cancelling each other out..

james Feb 24, 2021

I don't see why not.

steven Feb 23, 2021

Hey Mike! This LoC is for universal applications and i can't think of any reasons why it wouldn't work for your specific application. Adding one amp to this little guy is well within its limitations. Audio control also has some very high quality amps with this built in. Good luck! -RK PERFORMANCE SHOP

kenley Feb 23, 2021

Yeah itll work. Don't hook up the input leads to the stock subwoofer or amp tho. You need to splice into the front (or rear) left and right channel speakers. And then run the wire from each speaker and put them into the designated inputs on the lc2i. It comes with detailed instructions. It needs a full range signal tho, so that's why you tap into the speakers. If you tap into the stock sub, the crossover on that will interfere with the crossover on the lc2i and not work correctly.

adrian Feb 23, 2021

Yep, it uses the signal from your factory sub, converts it then goes to the amp. Should not interfere with function of factory sub.

brett Feb 23, 2021

Oh shore

michael Feb 23, 2021

Will this work in a 2012 mazda 3i with factory bose system? I just want to add an amp and subwoofer to bring the bass out better.

dennis Jan 25, 2021

Can I run a class d mono amp and a 4 channel amp from this ?

Yes, and it comes with detailed instructions. It'll work just fine. Make sure to tap into the speakers because the lc2i needs a full range speaker. Don't tap into the stock subwoofer, if you do that, the crossover on the stock sub can interfere with the crossover on the lc2i and not work correctly

adrian Feb 23, 2021

Yes!

duan Jan 25, 2021

Yes, should work great for that application,

henry Jan 25, 2021

craig Sep 01, 2020