Name: Scosche LOC90 Speaker to RCA Line Output Converter
Brand: Scosche
SKU: 142LOC90
Price: 24.99 USD
Availability: InStock
Rating: 4.5 (99 reviews)

Overview

by Crutchfield's

Converts speaker-level signals to preamp-level

Scosche's LOC90 line output converter transforms high-level speaker wire signals to a set of line-level RCA outputs. If your car radio doesn't have preamp outputs, this 2-channel converter lets you tap into speaker wires to send up to a 4-volt signal to the preamp inputs on your 2-channel or mono amp.

KEEP READING

Converts speaker-level signals to preamp-level

The converter will turn on your amp when it senses an incoming signal, so there's no need for a turn-on wire. If you're installing a subwoofer, the package includes a wired remote control for adjusting the bass level from the front seat.

READ LESS

Product highlights:

line output converter with remote level control
converts speaker wire outputs to RCA outputs
allows addition of 2-channel or mono amps to factory and aftermarket stereos
works with high-powered car stereos (up to 50 watts per channel)
includes mountable remote control for controlling subwoofer level from dash
LOC dimensions: 2-3/16"W x 1-1/4"H x 3-9/16"D
warranty: 90 days
Our 60-day money-back guarantee
MFR # LOC90

What's in the box:

Scosche LOC90 Speaker to RCA Line Output Converter owner's manual

Line ouput converter
Wired remote control (w/ attached 17' cable terminated by a right-angle 3.5mm connector)
2 Screws
3M tape
Instructions
Survey Card

Reviews

Loading reviews...

Scosche LOC90 Speaker to RCA Line Output Converter reviews

Average review:

99 reviews

Thanks for submitting your review

Most reviews are processed and published within 5 business days. You will receive a confirmation email once your review has been published.

Filter by rating

Customer photos

Customer provided image, click to load a larger version.

Verified customer

Verified employee review

Reviewed on Samsung.com

This review was collected as part of a promotion

Pros:

Cons:

Have questions for

Crutchfield response

Helpful?

Yes

<< >>

Details

Researched by Crutchfield's Stacey B.

Product Research

Features

Line Output Converter: The Scosche LOC90 Line Output Converter converts speaker wire (high-level) to RCA outputs (low-level) for the purpose of adding an aftermarket two-channel or mono amplifier to an existing factory or aftermarket stereo system which lacks low-level outputs. The LOC90 features up to 4 volts output and works with high power car stereos up to 50 Watts (RMS) per channel.

Wired Remote Control: The LOC90 also includes a convenient remote mountable volume control for precise control over a subwoofer amplifier's volume level from the front of your vehicle. The wired remote is fitted with an attached 17' cable terminated by a right-angle 3.5mm male connector which plugs into the LOC90's minijack (3.5mm) remote input. The wired remote control is designed to be mounted under the dash using the included 3M tape or two self-tapping screws.

Connections: The LOC90 features four speaker level input wires and a stereo line-level output. There is also a +12V power wire, ground wire, and turn-on lead.

Speaker Inputs: Connect the left (+) speaker wire of your car stereo to the white wire of the LOC-90 and connect the left (-) speaker wire to the white/black wire of the LOC-90. Then connect the right (+) speaker wire to the gray wire of the LOC-90 and connect the right (-) speaker wire to the gray/black wire of the LOC-90.
RCA Outputs: Connect the RCA output jacks of the LOC-90 to the RCA inputs of your amplifier or EQ booster (Red = Right, White = Left).
Power/Ground: The +12V power wire (yellow) must be connected to your vehicle's constant battery power, while the ground wire (black) needs to be connected to your vehicle's metal surface.
Turn-On Lead: Signal sensing turn-on lead (blue/white) for aftermarket amplifier turn-on.

Output Level Adjustment: The LOC90 Line Output Converter is equipped with output level controls that can be adjusted for proper sound level matching. This done by inserting a small flat-blade or phillips-head screwdriver into the gain adjustment holes, located on top of the LOC-90. by turning clockwise, the gain for that individual channel, or the amount of sound allowed to pass through the LOC-90 is increased. By turning counterclockwise, the gain for that individual channels is decreased. If you feel that after increasing the volume of your stereo, the sound is too quiet, then equally increase both the left and right gains of the LOC-90 until the sound level is adequate. If the sound level is too loud with only a slight increase in stereo volume, or distortion (poor sound quality) is noticeable, then equally decrease the gains of the LOC-90.

Dimensions:

Line Output Converter: 2.1875" (w) x 1.125" (h) x 3.5625" (d)
Wired Remote Control: 1.9375" (w) x 0.875" (h) x 2.875" (d)

Accessories

Loading accessories...

Q&A

30 questions already asked

How do I set the levels for the loc. My amp takes in 4 volts. This says it make 4 volts. Do I need to turn the levels all the way up to get the 4 volts?

[ ROBERTO Mar 30, 2023 ]

1 answer

Generally, we would not turn the output or input levels of any device all the way up as this typically leads to distortion. It would be important to carefully experiment with the input/output levels of the amplifier and LOC in order to determine how they will interact with one another. The ultimate goal, typically, is to achieve the highest possible volume output from your speakers while avoiding distortion.

[ ZACHARY Mar 30, 2023 ] Staff

What color wire are the rear speakers on 2020 gmc acadia?

[ David Feb 21, 2023 ]

1 answer

That is a great question! We have wiring guides that are a part of mastersheets you can get from us. If you have already gotten an item from and didn't see that then you can give us a call at 800.324.9695 and one of our experts can resend you the diagram you need!

[ ARIELLE H Feb 21, 2023 ] Staff

How would I wire this if I was just using one channel/subwoofer? Just use one side correct? The other side would be left alone because i'm only using one channel/subwoofer? Thanks

[ MICHAEL Jan 02, 2023 ]

1 answer

Subwoofer amplifiers generally have left/right stereo input. When tying into a factory audio system, we generally want both left and right signal for our aftermarket subwoofer (unless we're tying into the wiring for a factory subwoofer to get our signal). The reason that we would want both left and right input signal is that some music may have bass on only one channel or another. If we only get signal from either left or right channel, then we could be missing bass that is present on the other channel.

[ ZACHARY Jan 02, 2023 ] Staff

what color wires do i connect to on a 2013 vw bettle turbo converitable, and where are they located ? Please. Thank you.

[ J. B. II Mar 29, 2022 ]

1 answer

There is a manual on the product in the crutchfield store when viewing it. Scroll down you will find the wiring schematic. Yellow is constant/accessories power. Black is ground (cars metal frame with no paint on the connections). White is the left speakers. Black is the right and Blue is the power on for the amp. For the VW I am not sure where to connect but in my Impala I had a pre-amp from the factory sending all the signals. I tapped into that for the amp switch. Otherwise what I would say is utilize the wires in the stereo at the front of the car. Crutchfield assistants might provide further input, they are available via call quite often. I called them to discuss the product too and get thoughts.

[ STEPHEN Mar 29, 2022 ]

What color wires do I tap into on a 2021 jeep Cherokee latitude plus?

[ Anthony Mar 20, 2022 ]

1 answer

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the connections on the product. 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.

[ KENNETH Mar 23, 2022 ] Staff

How long after vehicle is turned off does it take this loc to drop the remote signal to the amplifier? I sat there today and watched as the amplifier stay powered on for 10 minutes after the vehicle was shut down. Is it supposed to be immediate?

[ IAN Jan 08, 2022 ]

1 answer

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product 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.

[ KENNETH Jan 13, 2022 ] Staff

What color are rear speaker wires on wire harness a Ford Explorer 2016 Limited?

[ Christopher Jul 26, 2021 ]

1 answer

We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.

[ KENNETH Aug 01, 2021 ] Staff

If my amp is 1 channel @ 350 RMS, will this LOC not handle as it says 50 watts per channel?

[ joe May 11, 2021 ]

1 answer

I'm using this LOC with a 660Wrms. All the LOC does is provide a signal to the amp.

[ IVAN May 11, 2021 ]

are the "easy installation" crimps/splices included in the box?

[ david Jul 23, 2020 ]

3 answers

No. Wire connectors are not included. Mounting hardware for the remote is the only thing included. Double-sided tape and two small screws.

[ IAN Jan 08, 2022 ]

Yes. It's pretty straight forward. Definitely did the job till I was able to run an aftermarket radio.

[ Jeffrey Jul 23, 2020 ]

NO there is not

[ KEVIN A. Jul 23, 2020 ]

Will This Work With A 2012 Jetta GLI Fender System?

[ Quincy Feb 04, 2020 ]

1 answer

Yes it will work just get your wiring diagram of your car.

[ STEVAN W Feb 04, 2020 ]

I'm not hooking a system up but the guy that had my yukon before me cut the wiring harness and I was wondering if I hooked my rear door speakers to the converter and ran rca Jacks from converter to back of head unit would my rear speakers work?

[ Micheal Dec 02, 2019 ]

2 answers

Yes it will play them

[ STEVAN W Dec 02, 2019 ]

I dont know. Had it installed

[ lorena Dec 02, 2019 ]

[ Micheal Dec 02, 2019 ]

1 answer

That won't work as the output from a converter like this one needs to be amplified before it can be sent to a speaker.

[ JASON Dec 18, 2019 ] Staff

What gauge are the input wires to this LOC?

[ CAMERON Sep 23, 2019 ]

2 answers

Seems like 16 or 18 gauge

[ CHRISTOPHER Oct 07, 2019 ]

16-18

[ steven Sep 23, 2019 ]

Does this act as a low pass? I have a factory sub that doesn't have a crossover so connecting just the RCA out to the harness causes highs to go to the sub. My head unit doesn't have a sub out, with this do the trick?

[ Devon Jun 30, 2019 ]

3 answers

I don't really understand the question. A factory sub must have a low pass filter. No, this device does not have any signal filters at all. It's simply steps down speaker level input to line level input. If a full range signal comes in a full range signal goes out, if a low pass signal comes in, a low pass signal goes out.

[ IAN Jan 08, 2022 ]

your question is a bit confusing. this does act as low pass for cars without rca outputs and without a factory subwoofer. if your car already has a factory subwoofer and you are trying to steal that signal from the plug this product will not work. you will need audiocontrols lci2 to convert that factory sub signal into something your new amp and subwoofer will like.

[ steven Jul 08, 2019 ]

i mainly got this thing because of my factory head unit, i didn't want to change it, and i hooked everything, being that it's factory, i had to get this thing to plug the rca's and connect the remote wire. it does the job for me

[ Julie Ann Jul 08, 2019 ]

I installed to specification but it will not turn off amp? What is wrong

[ DOUG Mar 06, 2019 ]

1 answer

[ KRISTINA Mar 13, 2019 ] Staff

I ran the power wire for the line output converter to my amp where it connects to the batter, now it doesn't turn right off. Should I wire the power for the line output converter to the head unit?

[ slabboss Jul 13, 2018 ]

1 answer

[ KRISTINA Jul 16, 2018 ] Staff

Will this work w a 1 channel amp for one sub?

[ skorpyo33 May 14, 2018 ]

2 answers

I agree with Jeff! This line output converter will work with a mono (1 channel) subwoofer amp My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101

[ JASON Jun 04, 2018 ] Staff

Yep, I have it for my sub amp. Works great.

[ jeff Jun 03, 2018 ]

With the Bass Knob getting bad reviews, Could you replace it with another brand of Bass knob with a 3.5mm jack?

[ JESSE Apr 03, 2018 ]

1 answer

yes

[ troy Apr 23, 2018 ]

i have a 2018 honda accord. how do i figure out which rear speaker wire color is positive and which 1 is the negative ?

[ shahan Mar 30, 2018 ]

4 answers

Take a 9 volt battery and apply power to the speaker wire terminals with the speaker wires disconnected. If the woofer pushes out, then that is the correct polarity. If the woofer sucked in, the polarity is opposite. Once you figure out which terminal is positive, the wire that belongs on that terminal will be you're positive wire

[ IAN Jan 08, 2022 ]

Set a multimeter to measure DC voltage, and touch the speaker wires to the probes. If your probe is touching a wire with an opposite polarity, such as the positive probe to a negative wire, you will get a negative numerical reading. Try switching which probe you're using to get a positive reading instead.

[ CODI Mar 30, 2018 ]

Use a multi meter to check the output. Set it on 12v and put the leads on the speaker terminal. If it doesn't read with a minus in front of the voltage then the red lead will be the positive and the other the negative.

[ BILL Mar 30, 2018 ]

See if they aren't left negative brown and right negative orange. The positives are yellow and blue in same order from left to right. That's a 2017. Hope this helps ??

[ DAN Mar 30, 2018 ]

Is it appropriate to connect the yellow power wire directly to the car battery for a continuous source?

[ Mitchell Mar 17, 2018 ]

1 answer

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 Mar 25, 2018 ] Staff

I have a 2006 Pontiac G6 where do I hook up the remote wire to a 12 volt Source because I am using a line output connector?

[ Wade Apr 05, 2017 ]

1 answer

[ KENNETH Apr 05, 2017 ] Staff

My amp works without the RCA cable's power and negative wires hooked up, will this continues to work or will eventually stop?

[ Cody Feb 20, 2017 ]

1 answer

Thanks for your question. For information on amp control I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to discuss how your current system is set up and if it is ideal. They can make recommendations as well to keep your system running trouble free.

[ KENNETH Feb 20, 2017 ] Staff

Will I need this to add a mono amp and single subwoofer to an Altima Coupe w/ Bose (no navigation) ?

[ mpache002 Feb 06, 2017 ]

1 answer

For additional 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 how everything integrates and what you will need for an installation in your vehicle.

[ KENNETH Feb 06, 2017 ] Staff

Will this fit my 6016 mazda 6? non bose

[ Josh Oct 01, 2016 ]

1 answer

For additional 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.

[ KENNETH Oct 01, 2016 ] Staff

Will hooking up yellow wire to constant power keep the amp on all the time causing the battery to drain down ?

[ James Apr 02, 2016 ]

1 answer

The Scosche LOC90 has a signal sensing turn-on lead (blue/white) for connecting an aftermarket amplifier remote lead--this will automatically turn your amp on when a signal is present to the high-level inputs on the LOC90 and then turn it off when it stops receiving a signal. I hope that helps. My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=159

[ DAVID Apr 06, 2016 ] Staff

What color are the wires coming from my car am i suppose to connect the white and black and grey and black wires coming from the high low level input to?

[ Keaton Jan 13, 2016 ]

1 answer

To answer this question you would have to specify vehicle year,make, and model

[ jon Jan 15, 2016 ]

I installed this LOC in my Silverado because I wanted to add a sub and amp and still use my factory radio. My question is when adjusting the input sensitivity, would it be better to start with the amp or the LOC?

[ wheeler Nov 10, 2015 ]

4 answers

I just set the loc at like 3/4 on the 2 flathead screw gain adjustment. I left the " bass " knob off. Then did a standard tune with the sub amplifier. Sounds great.

[ Evan J. Nov 14, 2015 ]

I would start at the converter. I set my converter around 75% and then gradually set the amp. Hope this helps

[ jon Nov 12, 2015 ]

I would leave it in the middle just like plugging your phone to your radio if the volumes to high on the phone you will get distortion try adjusting the amp first might be just enough.

[ AFRIM Nov 11, 2015 ]

I personally have better luck starting with loc.

[ BENJAMIN Nov 11, 2015 ]

How long is the remote turn on wire?

[ Evan Sep 18, 2015 ]

5 answers

4 inches. You will need to add wire

[ IAN Jan 08, 2022 ]

About 1FT. Short but if you just add a crimping sleeve and pinch it you can always add more wire to suit your purpose. I installed it in a friends car about 4wks ago, NO ISSUES works great! I would buy this unit again for a factory radio install.

[ Dennis Sep 21, 2015 ]

I would say about 8 inches which is the same for all wires leading off. Definitely not long enough to be routed anywhere but long enough to tap directly into some rear speakers or harness behind stock HU.

[ Jesse Sep 20, 2015 ]

Short... i think less than 12 in. ... plan to match/ have equal distance for remote wire same as rca's. So pan to extend it unless/ if you wire it right next to the amp. Meaning if you want to hide the LOC and need 5ft length for rca, get 5 ft of (blue)remote wire Also plan to get wires to run 1. power and 2.ground + 3. a fuse... (for 12v) I bought 6 ft. long red/black/blue 16 guage. This device requires 12v power & ground. You should * fuse the 12v - 5A is enough. You could probably use 18 -20 guage.

[ GREGORY T Sep 18, 2015 ]

its pretty long. I don't know the exact length but I would say at least 4-5 feet long.

[ Joseph Sep 18, 2015 ]

I have a 1994 Volvo 940 and am interested in using this to add an amp for a single sealed 10 inch subwoofer. I have the sub, amp, wiring, etc now and need a line out converter. how does it connect into the OEM stuff? the rear speakers? i'll be upgrading everything soon, but for the time being, I want a little bump! Thank you!

[ Stephen Aug 22, 2015 ]

6 answers

ake signal from right(+ & -) and left speakers(+ & -) connect to loc... 1. now run 12v power from battery (w/fuse) 2. Run ground. Now you plug rca's into LOC and connect remote output to the amp. Adjust the LOC... done :)

[ GREGORY T Sep 18, 2015 ]

The converter wires to you factory rear speakers and is also your remote power.

[ MICKEY Aug 27, 2015 ]

You splice the box's wires in line with the radio's output wires. So you can splice this product in at the rear speakers or directly behind the head unit. There is also a nice option with this that splices 12 volts power in so you can have your amp's remote spliced to it instead of all the way back to the head unit. When it receives a signal from the speaker outputs, it will put 12 volts on the remote wire and turn your amp on.

[ robert Aug 24, 2015 ]

You can tap into the rear speakers in the rear or just behind factory head unit. Either way works fine. Converter works great. Also has remote turn on built in. If you use the included bass knob you'll have full control at your fingertips. Just make sure you ground converter.

[ jon Aug 23, 2015 ]

Uu got it. Rear speakers, just as the instructions suggest. I used the rear power point (cigarette lighter) for the power source on the converter is an all time power. So you don't need to have one that turns on and off for the converter to dignal the amp to turn on. Remember, with this converter there is NO need to take the dash apart.

[ Evan J. Aug 23, 2015 ]

If your installing the amp in the trunk the rear speakers are you best choice for source for input. This item requires two speaker level input a 12v input and a ground. Fron this it will give you two rca outputs and a 12v remote output.

[ carlos Aug 23, 2015 ]

Is there a way to install an loc and an aftermarket amp in addition to a factory amp?

[ Brandon Apr 16, 2015 ]

3 answers

Yes, but to ensure the best possible signal you should tap into the line after amplification.

[ Jesse Sep 20, 2015 ]

f course.

[ GREGORY T Sep 18, 2015 ]

YEs but first does the factory system have a subwoofer? or better yet is the aftermarket amp you want to install going to be for a subwoofer?

[ Andrew Apr 17, 2015 ]

SHOW MORESHOW LESS