Line Output Converters - What Are They - How Do You Install One? 

I thought this shop was trying to get more money out of me but i see I actually need it for my factory radio . Appreciate you clearing it up

This guy's install and explanation videos are the best. At this point I watch for entertainment purposes

This is the only video I've seen that explains how the components work. Very helpful! Thanks!

This helped me to do this. Home theater AV receiver --> frontal main speakers --> LOC --> stereo amplifier --> One pair of speakers. Now I can use only one pair of main speakers for music and for movies and games. I don't see this solution very often. Thank you.

Outstanding video. Perfectly explained. Thank you very very much.

I just subscribed. You have made wiring and terminating less scary for many of us. Your videos mean a lot. Thank You!

Great video! Helped me a lot with my amp install. Thanks!

Couldn't have timed this better. You guys have have saved me a lot of time. Please spare a few minutes for my complicated question but before that; Amazing job done by the presenter explaining all the confusing things in layman term's. Was a Subscriber earlier but I tried subscribing again 😇✌ After countless hours of sleepless nights and hours of research with a tight budget, I wanted to have the best setup which suited my needs. Clear Full Range Music(EQ control) with Accurate BASS. Have bought a 840watt's Blaupunkt 4 channel GTA 470 Digital Sound Processor Amplifier , JBL CSX-1400BP 12" Subwoofer, PAC PDLC 21 Active 2 channel LOC, Surge F8 Flo True 8AWG 800W AMP wiring kit which is on its way. I'm hooking the the 2 channels of the Amp to the front speakers and the 2 bridged channels to the Sub. Since I'm having a DSP Amplifier with various settings such as X-over control, Subsonic control, Phase control, Delay control etc. Does the front speaker signals give full range output i.e If I tap into the front speaker signals with the LOC, will I be able to achieve a full range surround sound system in my car with DSP control function working properly? Was thinking about a 4 channel LOC but thought it would be useless since I'm using only 2 front channels of the amplifier for speaker and remaining 2 for a Sub. I can use the PAC PDLC21 with a low output gain settings since it can pump out 10V unlike a passive LOC and Adjust the gain in the Amplifier to adjust the Fader setting to achieve surround sound from a 2 channel LOC. My stock HU is a 4 speaker outs with a stock 6 speaker(2 tweeters+4 mid speakers) setup. I'm planning to change my Stock front speakers too, Any suggestions for the type (and brand) of front speakers which will suit my setup?

Great video super helpful thank you

This helped more than any other video out there. Dope

You are the real MVP for this video I tapped my Bose base speaker and all I get it base in my mids I'm gonna try the lci2

Thank, buddy for this very informative video..... I like how thorough you are with your explanations.

I wish you were in my area with this kind of professionalism

You are the best man, thank you. I have learnt a lot.

awesome overview!

Nice video, very professional and informative. Thanks for taking the time to make a great video!

Very clear and great video.

im planning on doing something like this on my 00 323i. My rear deck speakers are blown as of right now and im thinking of just using the wires from that, and putting an loc in my trunk with the rear deck speaker wires running to it. Then running rca to my amp. Do you think it would work?

This helped a lot! I got a used 2016 buick regal pre wired for a amp and sub and got lost when I saw the loc. I thought I was doing something wrong.

Finally a clear answer on the yellow and black wires! No other videos cover that.,

Thanks for the video. Very informative. I have a 2013 Cadillac XTS, in which I'm trying to hook up two 12 inch subs to the Cadillac's CUE infotainment factory head unit.

Hi, my 2018 honda fit seems to have pretty aggressive low frequency cut off on stock head unit as the bass is very lacking so im wondering if its going to affect the sound of the sub amp when using a LOC ?

Thanks man , I have a question. I tapped in to my factory subwoofer but my PAC LP7-2 won’t play a beat. I’m guessing it doesn’t pick up those frequencies right? Should I upgrade to a LC2-I

Thank you so much for this vid! The PAC LOCs in particular was a revelation(the load circuits!) and will solve a big problem for me whereby I lost fader capability when connecting an aftermarket amp to stock vw head unit :D

Im having a boooom if i cut off my radio do i need to ground the 2 brown wires on my PAC SNI-35 ADJUSTABLE 2 CHANNEL LINE OUT CONVERTER SPEAKER WIRE HI LOW RCA SNI35 ?

nice video, a quick question, i have 2 amplifiers 1 for my door speakers which i understand for low line output converter is installed on stock radio, but for my subwoofer amplifier where do i connect signal wire for a low line output rca to my amp? thanks hope you can help

Phenomenal video brother good job

but I want to run an aftermarket kenwood amp what watts can I use with this rca

this has saved my bacon, Thanks!!!!!

So I want to put this set up "Rear speakers and a sub" with el 4 channel amp RockFord Fosfate R400. Do I need a 4 channel line output converter and the same process of tapping the rears? How do I wire for 4 channel tapping the rear

Do you have any experience with a Cadillac ATS with the premium Bose package on the CUE head unit? I'm trying to install two 12" kicker subs and a 1400W kicker amp

really good video man

Did you run the remote wire on the loc to the amp directly or are you finding another 12v source to connect it to ?

Do you recommende LP7-2 over LP7-4? My question is if I want to keep the balance of my stock stereo with an Amp but with additional Amp to a Subwoofer.

Do you know if the 2015 and up Dodge Chargers SXT rear speaker wires are full range? I want to connect Audio Control LC7i or DQ-61 so I can connect 3 amps each for high, mids and lows from the just rear speaker signal.

Hey guys thanks for all that information! I still have a question tho... I’m about to install a Kenwood 6 channel amp on my 2017 Honda Accord that has the 4 speaker only factory system, so far so good right... 4 channels from factory HU to the amp then out to 4 speakers... my question is, what channel from the factory stereo/hu should feed the subwoofer since all 4 are taken?? Do I split the signal from the LOC’s RCA output so I can feed the subs input rca on the amp? What do you recommend I should do? If I get a six channel LOC I face the same problem only at the inverse. What type of solution do you recommend? Your help is greatly appreciate it!!! :)

What if you have any aftermarket radio with one rca pre out can I still use the lp7-2?

Can you still use the PAC LP7-2 if you are tapping stock amplified 2ohm leads? replacing the 2ohm full range speakers with the LP7-2? Will this great an issue with the existing untouched existing 8 speakers.?

i have a civic 2018 coupe. i have acces to rear really easy do you know if i have full powwr to rear? or i need to tap the front?

He said 20,000 KHz....lol Just bustin' your chops, man; Your vids are awesome!! Sparks in Daytona

Hey. I want to install a 4ch amp and a Mono amp to a factory head unit. Could you please help me on how to install the LOCs for the same..

is there a LOC the can turn my factory radio two channel into 4 channel? or should I just get a 4 channel loc and t the wires together

I have a corolla 2015 with after market-powered sub. The part where you connected the remote turn on for the amp was on the LOC, I dont have an LOC on my arrangement just a powered sub.. if you can please help me with where to connect that? thanks

I have a 2011 murano with the factory bose amp and sub. Can I tap into the amp to hook up the loc? All I'm looking to do is add another amp and 12 inch sub. I would run separate power from the battery. Looking for some ideas thanks

I have a six speaker system, two tweeters in dash on 2015 Volkswagen Passat, do I need the fancy Lin out due to tweeters possibly being high level? Where do I go about finding this out?

I have 1200watts Car Stereo, and I have 4stock car speakers, and I want to add 400watts woofer and 2-speaker 2way 800watts ...so total speakers are 7 .will.it works/connect to my stereo?

I am on my second p a c LP 7-2. My first was reading very low voltage. My second one did the same thing, I'm trying to target 2v but the highest reading is 0.017 ac.volts on both converters. I used two different multimeters with the same reading. My car is 08 Acura TL and I tapped into the rear speaker. I know for a fact I have it hooked up correctly. Do you know what's going on?

Can i just go off the passenger rear speaker on my 14 dodge ram. Used the loc2. Just not sure if im not getting full range by not going on driver side as well

do you just connect the constant 12v to the power wire from the battery? and also connect it right to the ground connection on the amp itself?

Is it possible to run a line out converter off of a amplified speaker wire? I have a upgraded system in a factory car.

If my aftermarket radio has a front rca output and a rear/SW output, would it be a good idea to use Y rca cables to split the signal so I can connect both the sub amp and the front and rear amp? Or should I convert the high level outputs to Low level RCA and use that as my outputs

I have a 2016 Chevy Silverado. IV installed everything and it works but how do I adjust the radio to maximize quality and bass?. Turn bass up or down? And then turn gain up on amp?. Not much tuning options on factory radio, Thank you for your time

So helpful took so much stress away watching this video.

So you hooked up both rear speakers to the LOC?? I had mine installed "Profesionally" and they only hooked up the 1 side should I redo it to have both for better sound and quality? I have aftermarket rear speakers as well and a amp and sub, amp is only for the sub. TIA

How do you know if your amp can decipher hi and low from a simple rca split from a line output converter? What would be in description on amp ?

Do you only need to use 1 speaker when tapping in to them? Or do you need to use 2 speakers? I have mine set up running off of my right front door speaker. But it’s seems that I am only getting single, or power, or very week response out of one of my subwoofers. Thanks in advance for any help!

I'm looking for a wire harness for a 2012 Infiniti QX56. I'm trying to run the RCA from the front of the truck. It's to add the complete system, crossover, amps for mid/high and a bass amp. I have search all over for the wire harness and can't find one. Any ideas on where I can find this in Florida?

I have a 2017 lexus is300 I wired the loc to the factory amplifer 8 inch woofer wires left and right together since I only have one 8inch factory sub. Will this be OK or would my signal be weak because I don't have a left amd right signal

Quick question I got the kicker version of this loc which has the remote wire. But my question is, is it OK to tap into the stock OEM subwoofer connection? Is it too much power for that little device or will it be OK? It’s the stock amp and subwoofer plug in the back of the mega cab behind the seats . Just because it’s easy to access is why I’m asking

I have a 2016 Cadillac CTs vsport with Bose 13 premium speakers and factory amp my questions are what’s the best loc to use? I’ve tried the lc2i and keyloc on my old Cadillac ats when just adding a subwoofer, but if I wanted to change the door speakers and use a four channel amp, is there a way to bypass the factory amp or can I just replace the front speakers with some more high output speakers that I have, and keep the factory amp?

Can you use this if you got a aftermarket radio? I was thinking about buying a SC6 line output signal converter. But I only wanted to use it for having the max input voltage for my sub amp and my 4 channel. I could just plug rca in from aftermarket radio and rca out to the amps?

Best LOC video I've found, extremely informative. Only one question remains for me: Is there a limit to the length of wire ran on either side of the LOC? Should the speaker level side be short and very close to the head unit, or should the low level side be short with the LOC closer to the amplifier? Is there a medium, or is it not important? I see how yours are setup and I'll mirror that for now. Thank you very much.

I have a 2021 Nissan Sentra sv. I’m planning on replacing my speakers and adding a 4 channel amp. Will an LOC or the speaker harness cause any issues with phone calls or anything that goes through my speakers?

What should I do if I want to add 2 amps to my head unit ? My car doesn't have a stock sub, so I can't use audio control LC6 or LC7. Can I use a 4 channel LOC or 2 2 channels LOC to power 2 different amps ? 2 2 channels are better to adjust voltage right ?

Great video!!!! I'm so glad you showed the guts of the LOC and explained the internal parts. It really helps people like me to understand better. Thank you !!

As a Formally Trained Audio Engineer and a guy who cut his teeth doing car stereos I thought that was actually a pretty good breakdown for folks that don't have an electronics background or a lot of inclination to get deep on how all this audio stuff works. I employed one of these adapters in a Bar where the Owner asked if I could run the output of his Jukebox (which only had a Left and Right External Speaker Output) into the speakers He had in the ceiling (or more correctly to the amp that powered those speakers) and it worked beautifully - also it's great because it mirrors the volume of its source relatively speaking. Not sure why this got so many thumbs down - I thought it was fairly spot on. Also for the record this doesn't replace the speakers in the circuit - it sits in parallel with the speakers (a "tap" so to speak) which keep the Ohm load correct to the amp - You'll have much more success than trying to completely use this device by itself without those speakers. - MM in Denver CO

I've watched vids where they cut the wire right next to the factory stereo and then others that did your way. Can I connect the LOC directly from each speaker rather than cutting the factory harness? And do I have to connect all the speakers to the LOC?

Mono block amp? Is there an advantage to wire 2 rear speakers to the LOC or can i wire just 1 speaker output to both +and- of the LOC if just used for a Subwoofer amp?

Awesome. Thanks for this. It definitely helps

So, I cut the right front speaker wires from the factory unit.. now I connect the wires to the LOC and then use the other side of the speaker wires and run it to the amp?

I have subs installed to my stock radio but now I have a aftermarket head unit was wondering how I use a universal bass knob without having any rcas going to the head unit since I still have my line output converter

Very informative video! One question - how did you test for Full Range Output?

Question and it may be a dumb one... I purchased two amps, one is 4 channel and the other one 2 channel and aftermarket kenwood. Now I'm not a pro but the guys (audio shop) who did al the installation. Installed 2 10's ,9 6's mids, 4 tweeters. Well I noticed they connected everything using high inputs . Which I didn't understand knowing the radio kenwood has 3 outputs RCA's for hi, mid, sub. I'm I wrong or right that they should of used the RCA inputs ensted?

In addition to running speaker wires from the LOC to the car speaker wires, I just realized I ran an additional set on both car speakers and ran them into the speaker terminals on the sub amplifier obviously where the sub speaker wires go into. The sub works and sounds great I just don’t know if there’s any issues to having another set of wires on each side of the car speakers running into the speaker terminals on the sub amplifier

i’m trying to install two 10 inch subwoofers to my car and i don’t know too much about installing speakers, if you’re tapping the two speakers in the trunk like you did in the video, what do i need to do to the head unit?

what if you have only one speaker (sub) on the back. can you connect the two positives and two negatives on LOC (front and rear ) to the single wires from the speaker?

I have the opposite problem. I have an aftermarket head unit with RCAs out and I would like to use a stock stereo I have sitting around because it fits the area. How do I do that?

If the blue Remout ON wire is connected to a constant power like in your installation, the amplifier will be ON all the time and may drain your car battery when the car is not running. Is it better to connect the blue wire to an "Accessory" or "Ignition" power?

I have a 2018 Accord lx. I took a monoblock amp and a Kicker L7 out of my Tundra that absolutely pumped I use the same line output converter that you have in the video with the remote turn on I kicked the gain all the way up on the line out converter and the amp and it barely puts any sound out I don't know what to do???🤯 I also disconnected the noise cancelling system behind the glove box but it's like the Accord does not put much bass sound through the rear speakers so I don't have a good enough signal I have no clue what to do I'm about to rip it all back out of the car

Great video, if I were wiring my LOC behind the radio where would I get my power from?(yellow cable)

In a 4 channel set up do I need to tap each speaker and run it to the LOC?

Hey folks I have a question I just purchased A MTX terminator two 12s in 1 boxand the amp is 1200 Watts also terminator. I have it in my 2003 Pontiac grand am. I feel like it's not beating to it's full potential so I went back over my wiring and the h-l-i cord is not hooked up. Am I supposed to run new wire from back of radio to the hli piece or how do I hook up that part? Please help ASAP. SHOULD I BUY NEW AMP OR DID I DO SOMETHING WRONG???

a little confused with the wattage. first time i would be using a LOC. if i have a 750 watt amp and 800watt sub and the amp is still pulling directly from the battery so power wise its good does it matter if the LOC is only 400watts? my guess is no since the amp would still amplify and send 750 to the sub. would LC2i be enough?

Amazing vid my speakers pop when I turn it up after turning up the volume. Also there is no bass to the subwoofer ( I’m only running a sub to a 4 channel amp) can you help me out?

Are there any benefit of using powered LOC over non-powered LOC?

Is it possible to add a sub box and amp to the mercedes mbux system on the w177 a class. ??? Help plz

Can a line output converter like audio control with all the adjustments and 10 V out sound better than a good aftermarket head unit?

Hi Great video👍 I have a 2017 Honda Civic Rs hatchback 1.5T(Australian model) which is probably equivalent to a touring or sports touring except without navigation.It has a premium factory stereo with 12 speakers including a factory subwoofer and factory amplifier. I have the pioneer gm-d8601 monoblock amp which accepts high level speaker inputs up to 16.5v and therefore don’t need a loc. Installers here in Australia can’t give me a straight answer about installing this amplifier with a aftermarket subwoofer. This is what they tell me: 1)Use the existing factory subwoofer wires straight to the pioneer amp. These wires are coming straight from the factory amplifier and therefore watts going to factory subwoofer is unknown. 2)tap into speaker wires from behind the factory head unit and straight to the pioneer amp for the signal. 3)I can’t get a signal directly from behind the factory head unit because the signal is digital and not analog and therefore I need to get a signal for the pioneer amplifier after the factory amp. Meaning I can’t bypass the factory amplifier. Any help advice would be appreciated. Seems like installers here down under are not that knowledgeable. Cheers mate

Hey guys, I have a 2016 Impala and I have a Axxess MLO720 I have the wires and the LOC install by a local stero installer and I went to adjust the balance and I only have bass on the right side! I took a look and it appears that I have 1 wire positive and negitive from the factory touchscreen unit. It is then spiced for both side on the LOC? Weird Im not sure if there could be on wire or the audio installer was lazy and hooked up one side. Any ideas?

Hooked up a sub and amp to my factory dodge Dakota. Not using a LOC! I just spliced into my rear speakers on the door with speaker wire and converted the ends to RCA plugins. Seems to work fine. The bass hits. But when I turn up the volume quick it cuts out and loses bass. I then have to turn down bass on the radio for the sub bass to kick on again. Why is this happening? Thanks.

Can u hook this up to a stock factory sub? In rear window

I'm still very very confused. I have 2 kenwood 12s and 2 amps. I'll be running about 2500 watts to the subs. Will the converter be able to handle that?

Hello, is this adapter able to reduce chime noise (like turn signal, parking sounds) ?

excelente muy interesante ese dispositivo me necanta ese video, esta muy bien explicado, le sugiero colocar un fondo musical mas bajo..para oir mejor,

Please need help ? What if you have stock sub do I tap into the wires from sub I have factory Mark Levinson system all I'm looking for little bumb by the way its a lexus ls460 if that helps

have you guys tried adding a amp onto a 2017 mazda with a factory amp , im looking for advise and any help

Great video! I have 05' GMC Yukon Denali w/ the premium Bose system and scratching my head as to where I tap the yellow 12v power and blue remote turn on wire from my PAC LP6-2R LOC? Do I run them directly to my aftermarket amp or do i need to tap them into my corresponding factory wires?

Hey man great video . I have a question regarding a install I did myself on my 4Runner . I tried connecting this lp7-2 to my factory subwoofer but I’m guessing the voltage is too high for it to work . I just have it working with my amps built in high to low but the sound quality sucks and it’s very odd beat . Should I connect this behind the lp7-2 behind the stereo or should I just tap into the front kick speakers since those are always playing bass ??

Amazing this is professional engineering technical work, for like this professional work you must pay any amount of labor charges. Excellent explanation.👍👍👍 Question. Car with fiber optic amplifier systems to upgrade sound unit to aftermarket Sony or alpine.. Etc how can used the original amplifier with fiber optic cable, or delete all systems or what the best solution or option I have.

OKAY this is what i needed so i did the same thing with my rear deck speakers and i had a high level output harnas for months. And today i wired the 4 wires to my LOC and connected it now my amp nor subwoofer will turn on