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AudioControl THREE.1

In-Dash Car Audio Equalizer and Crossover


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AudioControl THREE.1

In-Dash Car Audio Equalizer and Crossover


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  • In-Dash Car Audio Equalizer and Crossover
  • Stereo Graphic Equalization
  • Para-BASS Low Frequency Contouring
  • 24 dB/Octave Linkwitz Riley crossover
  • Pre-amp Gain: 20 dB
  • Line Driver: 13V Peak Output
  • Balanced Differential Inputs
  • High-Headroom PWM Switching Power Supply
  • Switchable Backlighting Color(Amber/Green)
  • Master Volume and Fader Control
  • Selectable Ground Isolation
  • Optimum Voltage LED
  • 1-year warranty

Equalizer Specifications

Type of Equalizer
This determines the way the equalizer processes the signal from the source unit. A parametric equalizer allows to you adjust the center point of the frequency band you are adjusting as well the bandwidth which can be narrowed or widened. A graphic equalizer has fixed frequency bands and bandwidth and only the frequency bands can be adjusted. A digital equalizer uses a software program to tune your system.
A graphic equalizer typically has more adjustable bands and is less expensive, whereas a parametric will have fewer bands but offer a greater level of control and provide more tuning options. Digital equalizers will tune your system with the most detail and precision but require a computer and are typically a little higher in price.
Equalizer Bands
The number of graphic or parametric equalizer bands the receiver has. The better the EQ, the more likely you will be able to "tweak" your sounds to your desire.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-Pass (LP)
High-Pass (HP)
Line Driver
A line driver is a small amplifier used to support the strength of the audio signal coming from the source unit.
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Total Number of Inputs
This is the total number of input connections that go into the unit.
Total Number of Outputs
This is the total number of output connections that the unit will produce.
Max Output Level
The maximum level (in volts) of signal output. A higher level will increase the clarity and boost your signal.
13 volts

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


South Africa

Excellent AlI In One

December 15, 2010

This is real value for money in that you have a Line driver,X-over and EQ in one unit.For the sound fanatic,the signal to your amplifiers is enhanced by this unit.A world of a difference in sound quality can be heard once connected.

3 of 4 found this helpful

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Buena Park, CA


July 12, 2010

The Audiocontrol 3.1 is an old school product with old school quality. the crossovers on this unit are the best in the business and the controls are easy and flexible to use.

2 of 3 found this helpful

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Lincoln, CA

Audio perfection at your fingertips......

January 21, 2009

This thing is amazing. It's like upgrading your whole sound system. I always get compliments on how clean my audio sounds. I highly recommend this.

2 of 3 found this helpful

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Accessory Tools and Products

Accessories added

NVX XWS1625 25 ft. of 16 Gauge Speaker Cable/Wire

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

Your Price $15.99

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: AudioControl THREE.1