Best Line Output Converter for Your Car

Best-Line-Output-Converter

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Most factory car stereo systems often deliver subpar sound. This output is nothing close to satisfactory. Naturally, you are not happy, and you can’t wait to upgrade your system. Probably, you’ve already purchased one of the best amps. But wait. The factory radio looks perfect in its compartment.

Now you’re wondering, is it possible to finetune the sound quality of the entire system without getting rid of that cute factory radio. That’s where a line output converter comes in. We’ll get into the details shortly.

However, there are so many factors that you should consider when choosing the best line output converter for your system. From the type, output levels, input and output channels … and the list goes on and on.

Seems like too much to swallow? Worry not; we have done the heavy lifting for you.

After hours of research and testing various line-out converters, we’ve compiled a list of the top 5 Best Quality Line output converters.  Also included is a buying guide explaining everything you need to consider before you make the purchase decision. So let’s dive straight in!

Review of the 5 Best Quality Line Output Converters

AudioControl LC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control
PAC SNI-35 Variable LOC Line Out Converter
BEST SELLER
Kicker 46KISLOC Car Audio Amp 2 Channel RCA Line Output Converter KISLOC New
BEST CHOICE
Scosche LOC2SL Line Output Converter Adjustable Amplifier Add On Module for Car Stereo, 2-Channel Signal Sensing Speaker Wire to RCA Adapter with Remote Control Knob, Black
AudioControl LC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control
PAC SNI-35 Variable LOC Line Out Converter
Kicker 46KISLOC Car Audio Amp 2 Channel RCA Line Output Converter KISLOC New
Scosche LOC2SL Line Output Converter Adjustable Amplifier Add On Module for Car Stereo, 2-Channel Signal Sensing Speaker Wire to RCA Adapter with Remote Control Knob, Black
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AudioControl LC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control
AudioControl LC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control
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PAC SNI-35 Variable LOC Line Out Converter
PAC SNI-35 Variable LOC Line Out Converter
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BEST SELLER
Kicker 46KISLOC Car Audio Amp 2 Channel RCA Line Output Converter KISLOC New
Kicker 46KISLOC Car Audio Amp 2 Channel RCA Line Output Converter KISLOC New
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BEST CHOICE
Scosche LOC2SL Line Output Converter Adjustable Amplifier Add On Module for Car Stereo, 2-Channel Signal Sensing Speaker Wire to RCA Adapter with Remote Control Knob, Black
Scosche LOC2SL Line Output Converter Adjustable Amplifier Add On Module for Car Stereo, 2-Channel Signal Sensing Speaker Wire to RCA Adapter with Remote Control Knob, Black
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In this section, we’ll have a closer look at 5 top-rated Best Quality Line Output Converters available in the market today. We’ve also included the pros and cons of each to help you identify the best one for your needs. 

1. AudioControl LC7i Black 6-Channel Line Out Converter

AudioControl LC7i Black 6-Channel Line Out Converter

Top on the list of our top 5 Best Quality Line Output Converters is a 6 – channel converter that is guaranteed to boost the performance of your speaker system to phenomenal levels. The sound will be louder, clearer, and richer.

Audiophiles who have used this converter agree unanimously that it offers unmatched performance. And its features are like no other – seriously!

The LC7i has 6 RCA outputs rated a whopping 400W per channel that can handle up to 8.5 volts each. But the feature that really makes this converter outshine the rest is the AccuBASS circuitry. This is designed to solve the common problem of weak bass in factory stereos. Using this feature, you can sum the signals from several channels for an impressive full blast output.

Another awesome feature that sets the LC7i apart is the LED indicator that helps you easily match your receiver’s output to the input of your amp for optimum performance with zero noise.

Sale
AudioControl LC7i Black 6-Channel Line Output Converter with Bass Restoration
  • 6-channel line output converter
  • Designed to work with any factory stereo
  • 6 speaker-level inputs (each can handle up to 400 watts RMS of power)
  • Weights & dimensions: Dimensions: 7.5”W x 4.7”D x 1.2”H, Weight: 1.5 lbs (0.7 kg)
  • Remote In, 12VDC Remote Out (always active when unit is on), General: Power Supply: High Headroom PWM Switching, Current Draw: 350mA, Recommended Fuse Rating: 2A, The ACR-1 dash remote (sold separately) allows the user to control the level of the low frequency output.

Specifications:  

  • The six-channel line output converter
  • Designed to work with any factory stereo
  • Six speaker-level inputs (each can handle up to 400 watts RMS of power)
  • Dimensions: 7.5”W x 4.7”D x 1.2”H 
  • Weight: 1.5 lbs (0.7 kg)
  • Remote in, 12 VDC remote out (always active when the unit is on)
  • High Headroom PWM Switching, Current Draw: 350mA, Recommended Fuse Rating: 2A, The ACR-1 dash remote (sold separately) allows the user to control the level of the low-frequency output

Pros

  • Compact 
  • Can handle up to 400 watts per channel 
  • Easy to install 
  • Built-in 12-volt trigger automatically turns on your amp 
  • Unique level matching LED indicator 
  • Impressive bass boost feature  

Cons

  • Screw terminals could have been bigger 

2. AudioControl LC2i 2 Channel Line Out Converter  

AudioControl LC7i Black 6-Channel Line Out Converter

 Are you looking for an equally top-notch best quality line-out converter for your monochrome or 2- channel amp? Here is another great product from AudioControl that you can consider. It is as well packed with numerous features to allow you better control of your listening experience.

With a rating of 400 watts per channel and pre-amp signals of up to 9.5 volts, you can rest assured that you are getting out the best from your amp. Like the LC7i, the LC2i also has an AccuBASS circuitry feature for louder and crisp bass for the boom you’ve always desired.

AudioControl LC2i 2 Channel Line Out Converter with AccuBASS and Subwoofer Control
  • Two channels of Active Speaker Level Inputs
  • Accept 400 Watt Signals per Channel
  • Fixed and Variable Outputs with Discrete Level Controls
  • AccuBASS Processing for Correction of Bass Roll-Off
  • GTO Signal Sensing - Input For Optional Remote Level Control - Compact Design

Specifications: 

  • Two channels of active speaker level inputs
  • Accept 400-watt signals per channel
  • Fixed and variable outputs with discrete level controls
  • AccuBASS processing for correction of bass roll-off
  • GTO signal sensing
  • Input for optional remote level control 
  • Compact design

Pros

  • Handle up to 400 watts per channel 
  • RMS of 9.5 volts per channel 
  • AccuBASS circuitry for powerful bass output 
  • Compact and easy to install 
  • Well made 

Cons

  • Install instructions could have been better 

3. PAC SNI-35 Variable LOC Line Out Converter 

PAC-SNI-35-Variable-LOC-Line-Out-Converter

If you are looking for a temporal solution to improve your sound quality before upgrading your factory stereo, installing a LOC is a great place to start. One of the most affordable options available out there is the PAC SNI-35.

But don’t let its price tag fool you. This a feature-packed converter that will give you the ultimate value for every penny. It has a linear frequency response rate range of 20 – 20,000kHz at +/- 0.5dB. This LOC works by adjusting the signal from as low as 2W to 40W each channel while signals lower than 20Hz are cut-off.

Being a passive line-out converter, the SNI-35 is ideal for use when you’re connecting an amp to an aftermarket or factory head unit.

PAC SNI-35 Variable LOC Line Out Converter
  • Adjustable Line Output Converter
  • Use the SNI-35 when adding an amplifier to a factory radio to convert the radio's speaker level output to the lower amplifier (RCA) level input
  • Utilize Audio Transformer for Noise Isolation
  • Phase Adjusted

Pros

  • Great and cheap way to hook up amp on an OEM radio 
  • Improves sound output 
  • Works as advertised 
  • Easy and quick installation 

Cons

  • Install instructions not included  

4. Kicker KISLOC 2-Channel 

Kicker-KISLOC-2-Channel

You can never go wrong with a product from Kicker. They are gurus in the car audio system field, and their long history in the field helps their products cut above the rest. In fact, they came up with the world’s first line output converter that has a micro surface mount.

KISLOC is a passive line output converter that takes up to 55 watts to give up to 8 volts per channel. This makes them perfect for OEM head units with short circuit protection. On top of that, this converter has a flat response frequency range of 20 – 20kHz.

You can use this 2-channel line-out converter either for a single or 2-channel amp.

Sale
Kicker 46KISLOC Car Audio Amp 2 Channel RCA Line Output Converter KISLOC New
  • Kicker 46KISLOC Car Audio Amp 2 Channel RCA Line Output Converter KISLOC New

Specifications:

  • K-Series interconnect cable
  • World’S first micro surface mount LOC
  • Two-channel speaker to RCA
  • K-grip dual-mold connectors offer sure-grip

Pros

  • Flawless performance 
  • Easy to install and use 
  • Small and compact 
  • Well made 

Cons

  • Not ideal for newer car models 
  • Install guide not included 

5. SCOSCHE LOC2SL Car Stereo 2-Channel 

SCOSCHE-LOC2SL-Car-Stereo-2-Channel

If you want a LOC that is not only easy to install but also allows you the flexibility of operating your sub right in your driver’s seat, the SCOSCHE LOC2SL is a great pick.  

It is a 2 – channel line output converter that works well with high-power speakers. As a 2 – channel LOC, it means you can either add mono or a 2-channel amp to your stereo system. The output level rating per channel is 80 W.  

What’s more, this unit is affordable and comes with several other rare find accessories. For example, it comes with a mountable remote control (plus knob) for controlling the bass in the comfort of your driver’s seat. And on top of that, this unit comes with an unmatched lifetime warranty.

What’s more, this unit is affordable and comes with several other rare find accessories. For example, it comes with a mountable remote control (plus knob) for controlling the bass in the comfort of your driver’s seat. And on top of that, this unit comes with an unmatched lifetime warranty.

Sale
Scosche LOC2SL Line Output Converter Adjustable Amplifier Add On Module for Car Stereo, 2-Channel Signal Sensing Speaker Wire to RCA Adapter with Remote Control Knob, Black
  • Speaker to RCA Converter - Converts car stereo output speaker wire to RCA connectors. This speaker wire line out converter is compatible with high power car stereos up to 90 watts per channel. Delivering premium performance without noise, static, or buzzing
  • Easy Installation - Add an amplifier to nearly any stock stereo with this line out converter. Simply tap into the car audio speaker wire with snap adapters. No need to remove the car stereo. Each converter includes easy to follow instructions to simplify the installation process
  • Subwoofer - This DIY speaker kit is a convenient speaker wire to subwoofer adapter. The RCA line output converter for subwoofer makes it easy to hook up to an amplifier and set up a subwoofer system in any car
  • RCA Converter - Speaker level to line level converter allows the addition of 2-channel or mono amplifiers. Independent left and right channel level adjustments provide the perfect sound balance. Includes signal sensing 12V remote turn-on output
  • External Controller - Includes mountable remote control knob for adjusting subwoofer bass audio level from the dash. This remote bass knob lets you control the level of sound with convenience. No reason to pull over and manually adjust the amplifier

Pros

  • Easy to install 
  • Compact 
  • Nice volume knob for subwoofer bass control 
  • 80 W per channel perfect for high power factory stereos  

Cons

  • Included wires could have been longer 
  • Adjustment screws are a little weak 

What Is A Line Output Converter and How Does It Work? 

A car stereo system often consists of three main components. These include the radio (or head unit), an amp, and the speakers. When you turn on your stereo, you may think that sound is automatically sent to your speakers, but there is a lot behind the scenes.  

To begin with, the head unit produces the initial audio signal. This signal is usually fragile and thus passed through a preamp, which amplifies just a little higher. The signal goes to your amplifier from the preamp, where it is now given a mega boost. The signal is now transferred to the speakers. The vibrations from the speakers then generate the sound you usually hear. 

Without a preamp, your amp will often be underutilized, and their sound output will never be good enough. Sadly, that’s often the case with a majority of factory stereo systems. If you want to get the best from your factory stereo, that’s where a line output comes into play.  

A LOC (abbreviation for line output converter) taps the signal coming from your head unit and amplifies it before sending it to the amplifier. The speakers will now produce louder, more detailed, and clearer sounds. Enjoy a new boom and better sound without having to replace your radio. 

Types of Line Output Converters 

There are two types of LOCs: 

  • Passive converter 
  • And an active converter 

A passive converter works by reducing the voltage received from the speaker wires. These do not need power from an external source. But on the flip side, because they can only scale down the signal received from the radio, a weak signal means you’ll as well get low sound output.  

On the other hand, an active converter controls the signal they’ll pick from your radio. On top of that, they’ll include additional features such as remoter turn-on, bass restoration, and more. And because they can take up a high voltage of up to 400Watts, active converters are perfect for high-powered radio systems. That explains why active converters are a favorite among most audiophiles.

Factors to Consider for Best Quality Line Output Converters?

Now you know the definition of a line output converter and the science behind its functioning. Next, we will look at the two main factors you should consider when choosing the best quality Line Output Converters for your stereo system.  

Number of Input/Output Channels   

A basic LOC will have a minimum of 2 input channels and 2 output channels. On the other hand, more advanced options can have up to 6 input and 6 output channels.  

The number of channels refers to the number of speaker output lines from your radio that the LOC can connect to.  

If you want to have the flexibility of connecting your LOC to several speakers, choose one with a higher number of input/output channels.

Output Levels 

This is another equally important factor that you should consider. It refers to the voltage degree rating on your LOC. Choose a rating that is equal to that of your amp. If you connect a LOC that has a higher rating, you’ll have to deal with a blown-up amplifier pretty soon. 

Frequently Asked Questions 

Getting the best quality sound from your sound system is a complex task. It is natural to have plenty of questions while fine-tuning your audio. Here is a quick look at some of the most frequently asked questions others had about adding an output converter to their audio systems.

Do factory radios have preamp outputs?

Most factory radios do not come with a preamp output but some advanced models might include this feature. It is possible to add a preamp output to your existing car radio if you like the look and functionality of your current radio or if you don’t want to go through the hassles of removing it from the vehicle dashboard. Line outputs usually include the needed connectivity so you can easily tap into the speaker wires.

Why is there a huge price difference in line output converters?

Line output converters usually vary in price because more expensive models tend to offer additional features and can handle more power than cheaper models.

Before you choose the right converter for you, calculate the total power output of your car radio. For example, the AudioControl LC2i on our list can accept 400-watt signals per channel while the cheaper Kisloc 2-channel converter on our list can only handle 50 watts of input. 

The feature differences can also have a huge impact on your converter functionality. Converters with a higher preamp output voltage will keep audio signals to your amp clean and distortion-free. Some advanced models also include equalizers or bass restoration circuitry which will improve sound quality a great deal.   

Do all amps need a line output converter?

No, some amps can function perfectly well without a converter. Amplifiers with speaker-level inputs can tap into existing speaker wires without a converter. Some subwoofers also include speaker-level inputs. With these advanced amps and subwoofers, the conversion occurs inside the device. It is best to check out the specs of your amp before you decide to buy an additional line output converter.  

Is it better to get an amp with speaker level input or to get a line output converter?

This can vary based on the type of LOC you are considering. For more basic and cheaper line output converters, the features they offer are already included in the amp design. Advanced LOCsoffer additional features like onboard equalizers, a higher watt input capacity, a higher output capacity, and a wider frequency response range. These added features can make a huge difference in your sound quality.  

Best Quality Line output converter

FINAL THOUGHTS 

Tired of listening to some mediocre sound from your factory stereo system, but for one reason or another, you aren’t in a position to replace your head unit just yet?

A line output converter is the best solution to your problems. It will help you to tap into the maximum potential of your amp for improved performance.

We hope this guide equips you with all the info you need in choosing the best quality line output converter!

If you are also in the market for a stereo or a pair of speakers to use along with your converter then you should have a look at some of the other guides we have on RideBass. With our guides, you can create the best sound system for any type of vehicle.

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