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Feed your amps the signal they deserve

AudioControl created the Matrix 6-channel line driver with one goal in mind — to make your car audio system sound better. Many modern car stereos boast 4- and 5-volt preamp outputs, but they're rated at full output. Turn your stereo to a normal volume level, send the signal through a 20-foot cable, and your amps may end up with just a couple of volts. Enter the Matrix.

Control panel

Get the most out of your system

The Matrix boosts the signal from your receiver up to 24 dB, right up to the maximum level accepted by your amplifier or processor. The high-voltage level keeps the noise out of your system, while feeding your amps the signal they need to deliver top performance. The Matrix is designed with three sets of inputs and outputs for the traditional front/rear/subwoofer setup, but it can also handle three separate 2-channel source units if desired.

Simple operation

Once connected, the Matrix makes it easy — turn up the gain knobs until the lights indicate the proper output, and you're all set. The overload light lets you know if you need to back off on the gain. Balanced inputs reject noise caused by your vehicle's electrical system, but you can switch to unbalanced operation if necessary. The Matrix's low-impedance output keeps your signal going strong through long cable runs.

More info from AudioControl


Product Highlights:

  • 6-channel line driver provides up to 24 dB of gain (9.5 volt RMS maximum)
  • white steel chassis with gold-plated RCA jacks
  • top-mounted controls for easy adjustment
  • three sets of balanced inputs and outputs eliminate noise (switchable to unbalanced mode)
  • light indicates 1-, 2-, or 5-volt output, plus overload indicator
  • frequency response: 10 to 100,000 Hz
  • signal-to-noise ratio: 110 dB at full output
  • maximum output level: 9.5 volts RMS (13 volts peak)
  • fuse rating: 1 amp
  • size: 6-1/4"H x 8-1/2"W x 1-3/16"D
  • weight: 2-1/4 pounds
  • warranty: 5 years
  • Our 60-day money-back guarantee

AudioControl Matrix Reviews

Average Customer Review:

3 Reviews

audio control matix

Written by: mensah g from detroit mi on January 24, 2012

Crutchfield Customer Review (What's this?)

the audio control matix is a must have for anyone who likes great sounding music

Pros: unclipped audio, dont over work amps or head unit , small easy to install ,it make your system sound great

Cons: none, you got to be crazy not to have one

AudioControl Matrix

Written by: D from Cpt, Ca on April 7, 2011

Crutchfield Customer Review (What's this?)

I have it hooked up to a Pioneer AVH P4300DVD going to a Polk PA 500.4
which power a set of Polk MM5251 and Polk MM6501, also a Polk PA 1200.1
which power a pair of Polk MoMo 2124. Only had it in a week everything needs
to break in. I'm running streeet wires Z5 and there is no noise. I level matched
as the video suggested and the amps played with the gains all the way down,
but I turned them up to just below a quarter. eveything is darn clear but need to
break in to really test. I'll give it a four now and reserve the five until I can really
test it, it will probably get a five in the end. It does what it says.



AudioControl Matrix

Written by: everly from greencastle, in. on January 27, 2011

Crutchfield Customer Review (What's this?)

great product, and very helpful tech support. installing the matrix allowed me to lower my amp. gains and still have loud , clear volume.



Hands-on research

What's in the box?

Download owner's manual

  • 6-Channel pre-amp Line Driver
  • Owner's manual
  • QC checklist
  • Product registration card

Product Research


Line Driver: To achieve the best possible signal to noise ratio and dynamic range from your amplifier, a line driver can increase the head unit's output voltage up to 24 dB (maximum is 9.5 volts RMS/13 volts peak). The Matrix has three sets of inputs and three sets of outputs.

Input Gain: The input gains are adjustable up to +24 dB, allowing you to increase the head unit's line voltage to the top of your amp's input range; up to 9.5 volts RMS/13 volts peak. The three sets of outputs have individual gain controls.

Output Voltage Indicators: Each set of outputs has four LEDs to indicate the output voltage; 2 volts, 5 volts, 7.5 volts, and Maximized (9.5 volts).

Balanced Inputs: Using the balanced differential input circuit cancels noise picked up in the transmission line between the Matrix and the the source unit. The three sets of inputs can be individually set to balanced or unbalanced if needed.

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.

Input Linking: The channel 1 and channel 2 outputs can be linked to the channel 3 input, useful if the source unit has only one or two pair of line outputs.

Subsonic Filter: The subsonic filter on the channel 3 outputs is 18 dB/octave at 33 Hz. If the channel 1 and channel 2 outputs are linked to the channel 3 input, the subsonic filter is applied to those outputs as well. The crossover point is governed by a replaceable chip, so it can be modified.

Terminal Block: The power/ground/remote terminal is removable; the wiring is attached to the block, then the block is plugged into the Matrix.


  • Frequency response: 10Hz-100kHz;±1dB
  • THD: 0.005%
  • S/Noise Ratio: 110dB
  • Input Impedance: 20 kΩ
  • Output Impedance: 50 ohms
  • Input Gain: -12 dB to 24dB
  • Subsonic Filter: 33 Hz, 18 dB/oct
  • Power Supply: Transformer isolated PWM DC/DC converter

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.