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AudioControl FOUR.1i

In-Dash Car Audio Equalizer with Auxiliary Input & 5-year warranty*!

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br /> • In-Dash Car Audio Equalizer with Auxiliary Input
• Para-BASS Low Frequency Controls
• Balanced Differential Inputs and Outputs
• 13Vpeak Line Driver

Learn more about the four1i

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This item has been discontinued

Product Highlights


br /> • In-Dash Car Audio Equalizer with Auxiliary Input
• Para-BASS Low Frequency Controls
• Balanced Differential Inputs and Outputs
• 13Vpeak Line Driver

Description


AudioControl brand icon

Authorized dealer




For over two decades, AudioControl has been designing and manufacturing award-winning autosound products at our factory located in the rainforests of the Pacific Northwest. During this period, countless sound-off winning contestants have chosen AudioControl products to give them the competitive edge. "Can you really win without AudioControl", was part of an article written commenting on competition winning systems. Nothing sounds better than an awesome recording played back on a kickbutt system. Unfortunately, the acoustics of your vehicle can take away from your systems performance. While AudioControl products do not change the laws of physics (although they act like they do), autosound enthusiasts have long known that AudioControl products "make good stereo sound better"

FOUR.1i - In-dash Equalizer with Aux Inputs

If your performance car audio system is designed for maximum sound quality and maximum control, then the FOUR.1i is the car audio processor for you. Designed to be the world's first professional quality in-dash equalizer, the FOUR.1i boasts such features as 13 volt signal capabilities, a master volume control, and auxiliary inputs for secondary sources. In addition, five equalization controls give just the right amount of control for the user. AudioControl's line of in-dash car processors offer features and functions that allow you to adjust and tweak your performance car audio system from the convenience of the driver seat. Included are features like equalization, electronic crossovers, master volume control, and high voltage line drivers.

Key Features:

Graphic Stereo Equalization:

The FOUR.1i turns the dashboard of your car into a mini-mixing board, just like those in a recording studio. The FOUR.1i has four frequency controls set at 8000Hz, 2000Hz, 500Hz, and 125Hz. These controls will make dramatic improvements in any system.

Para-BASS:

You want bass, we've got bass. This specially designed parametric control lets you adapt the bass response of any system to your listening desire. Given all of the various types of music combined with numerous possible bass response anomalies in every vehicle, a single equalization control for bass just doesn't cut it. It's like painting a picture with only one color . . . BORING!

Pre-Amp Line Driver:

Talk about your ironies. To operate with maximum dynamic range and the best signalto-noise ratio amplifiers require a high voltage input signal (generally 2 to 5 volts) . On the other hand, typical source units only put out 1 to 2 volts, (if you're lucky!) In a system where the source unit is located in the front of the car and the amplifiers are located in the rear, the length of the connecting cables will also cut the strength of the signal. The FOUR.1i includes a line driver that takes the weak output voltage of a head unit and increases it up to 20dB (up to 13 volts peak) and then delivers it downstream to the amplifier inputs.

Auxiliary Input:

The FOUR.1i has an "AUX" switch on the front to allow you to switch back and forth between sources. If you are thinking about adding a video system, or even that extra compact disc player or DVD player, the FOUR.1i makes hook-up a snap!

Balanced Inputs & Outputs:

The FOUR.1i uses a unique balanced differential input circuit that helps cancel any noise that radiates into the signal path between the source unit and your FOUR.1i. The FOUR.1i then sends this balanced signal downstream to another processor or amplifier that has balanced inputs (blatant plug for AudioControl products) which will keep it noise-free.





General Features:

  • Stereo Graphic Equalization
  • Switchable Backlighting Color (Amber/Green)
  • Para-BASS Low Frequency Controls
  • Pre-amp Gain: 20 dB
  • Line Driver: 13V Peak Output
  • Balanced Differential Inputs and Outputs
  • High-Headroom PWM Switching Power Supply
  • Main and Auxiliary Switchable Inputs
  • Master Volume and Fader Control
  • Selectable Ground Isolation
  • Optimum Voltage LED
  • Weight: 2 lbs
  • Size: 1.00" H x 6.75" W x 5.00 "D
  • Authorized Internet Dealer
  • 5 Year Manufacturer's Warranty (*when installed by an authorized AudioControl dealer)

FOUR.1i Specifications

  • Maximum input/output level: 9.5Vrms/13V peak
  • Frequency response: 10 - 100,000 Hz; ±1dB
  • Total harmonic distortion: 0.005%
  • Signal to Noise ratio: -110dB
  • Input Impedance: 20Kohms
  • Output Impedance: 150ohms
  • Input gain: 20dB
  • Inputs: Switchable 2 source, 2-channel
  • Balanced inputs: Yes (switchable)
  • Balanced Outputs: Yes (switchable)
  • Output ground isolation jumpers: Yes
  • Equalization Cut/Boost: ±12dB
  • Power supply: High-headroom PWM switching
  • Power draw: 250mA
  • Recommended fuse rating: 1 Amp
  • Illumination Color: switchable green or amber
  • Country of origin: U.S.A


Check out the AudioControl FOUR1i Owner's Manual

Specifications & Details


Equalizer Specifications
Type of Equalizer
Graphic
Equalizer Bands
4 band + Para-BASS
Equalizer Frequencies
40 - 8000 Hz
Built-in Crossover
None
Built-in Bass Reconstruction
No
Line Driver
Yes
Speaker Level Inputs
No
Total Number of Inputs
2
Total Number of Outputs
2
Signal Boost/Cut
12 dB
Max Output Level
9.5Vrms
Frequency Response
10 - 100,000 Hz
THD (Total Harmonic Distortion)
0.005%
Signal-to-Noise Ratio
-110 dB
Width
6.75"
Height
1.00"
Depth
5.00"
Warranty and Return Policy
Parts Warranty Duration
5 years
Labor Warranty Duration
5 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

FOUR.1i

Weight:

3.00lbs

Internal SKU:

four1i

Internal Product ID:

7196

Product and How-to Videos


Customer Ratings & Reviews



5 star
75%
4 star
25%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
4.5
Features
4.8
Design
4.8
Usability
5

Customer Reviews

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audio in control

this product will enhance any system 1000%. Best EQ I ever used, clean sound, and hard hitting very well made, KUDOS to Sonic.

By STEVEN on May 31, 2010

21

found this helpful.

Moderate Value

I bought this for the wife's car, hooked-up to the factory deck, and a JL 5/500 amp. I wanted her to have some equalizer capability and a way to connect her iPod. Works as stated and integrates into the system as planned.

By Don on August 10, 2010

20

found this helpful.

Awsome unit

What a big difference this has made to my system everything all right at my fingertips the crossover built in to the unit would recommend to anybody putting a system together thank you sonic

By Anonymous on October 22, 2018

1

found this helpful.

Preamp with Aux -in

This is a great product from AudioControl, 24/192 Audio from my Computer to my D/A converter, then to AudioControl's Aux-in with Preamp-outs. Then Going to amplifiers. Such a neat device.

By Benjamin on October 1, 2016 Checkmark Icon Verified purchase

1

found this helpful.

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