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AudioControl EQS

6-channel 13-band graphic equalizer (Black)

Item # 161EQSB

AudioControl's EQS graphic equalizer will help make your music sound fantastic in your car.

AudioControl's EQS graphic equalizer will help make your music sound fantastic in your car.

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Item # 161EQSB

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About the AudioControl EQS

Fine tune the sound for your speakers and subs

AudioControl's EQS graphic equalizer will help make your music sound fantastic in your car. This versatile 6-channel equalizer features 13 bands of adjustment for sonic fine tuning, along with level controls that allow you to match any receiver to any amplifier. Speaker-level inputs let you connect your EQS to just about any car stereo, even to factory amps that put out up to 100 watts.

Fine tune the sound for your speakers and subs

AudioControl's EQS graphic equalizer will help make your music sound fantastic in your car. This versatile 6-channel equalizer features 13 bands of adjustment for sonic fine tuning, along with level controls that allow you to match any receiver to any amplifier. Speaker-level inputs let you connect your EQS to just about any car stereo, even to factory amps that put out up to 100 watts.

Equalization bands

Most car audio problems occur in the bass frequencies, so this processor's subwoofer channel gives you six bands of equalization between 31.5 and 100 Hz, along with a rolloff filter that keeps ultra-low frequencies away. The front and rear channels feature seven bands of equalization at varying intervals from 250 Hz up to 10,000 Hz. If you're not using the sub channel, the low-frequency EQ section switches to the rear channel automatically.

Level matching for max performance

The EQS connects between your receiver and amplifiers (or crossovers) using its inputs and outputs for your system's front, rear, and subwoofer channels. Once connected, the EQS makes it simple — turn up the input gain knobs, adjust the output knobs until the lights indicate the desired output, and you're all set. You can adjust the output level up to 9.5 volts, so you can be sure your amps will get plenty of signal. 

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Product highlights:

  • 6-channel (3 pairs) 13-band graphic equalizer
  • subwoofer channels: 6 bands 1/3-octave wide
    • center frequencies: 31.5, 40, 50, 63, 80, 100 Hz
  • front and rear channels: 7 bands
    • center frequencies: 120, 160, 250, 500, 1000, 2000, 10000 Hz
  • input gain and output level controls and LEDs help with system integration
  • 33 Hz subsonic filter (adjustable with optional module)
Other Features and Specs:
  • preamp inputs and outputs
  • speaker-level inputs
  • balanced inputs eliminate noise
  • frequency response: 10 to 100,000 Hz
  • signal-to-noise ratio: 110 dB
  • maximum output level: 9.5 volts RMS
  • fuse rating: 2A
  • dimensions: 11-3/4"W x 1-3/8"H x 8-11/16"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # 841-036-8

What's in the box:

  • Pre-amp 6-Channel Equalizer (black)
  • Owner's manual
  • QC checklist
  • Product registration card

Customer reviews

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AudioControl EQS reviews

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6 reviews

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AudioControl EQS

Scott from Cumming, GA on 3/17/2019

Verified customer (What's this?)
Verified employee purchase (What's this?)

Provides outstanding clarity and depth to your music. Had the ws420sq however, couldn't get the depth I needed. Plugged the WS into the EQS and adjusted settings. WOW Incredible

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Great line driver

Don from Austin, TX on 1/1/2017

Verified customer (What's this?)
Verified employee purchase (What's this?)

The best part of this product is the line driver. Just got a new JVC head unit and its output voltage is very low. Nice clean sound through the Rockford Fosgate amps. Kept most of the equalization flat and adjusted the system with the head unit - running back and forth from the trunk got old quickly - this unit will give an infinite amount of tweeking options.

Pros: Easy install, good line driver, plenty of adjustment options

Cons: Can't adjust from driver's seat, if head unit has low voltage output you can't balance level your system

Crutchfield response on

2 of 2 found this helpful

5202905555

The Dude from Phoenix, AZ on 9/8/2013

Verified customer (What's this?)
Verified employee purchase (What's this?)

This item is a must for those with discerning taste when it comes to thier auto audio system.

Pros: Ease of use

Cons: i can not think of any

Crutchfield response on

1 of 2 found this helpful

A must have!

gupper from buffalo ny on 6/30/2013

Verified customer (What's this?)
Verified employee purchase (What's this?)

I have a 2013 Toyota Avalon and wanted to upgrade my audio system without replacing the factory head unit. I installed a JL Audio cleansweep dsp and matched that up with the EQS. What a nice combination. I used a JL Audio Slash 300/4 v3 for my front and rears and a xd 600/1 for my sub (tw5v2). Between the output voltage boost and the equalizer functions, the EQS gave me the ability to modify my sound the way I had envisioned.

Pros: Nice piece of hardware plenty of flexibility for sound preferences easy install

Cons: None

Crutchfield response on

3 of 4 found this helpful

Pretty good

ernie from San Pedro, CA on 11/4/2012

Verified customer (What's this?)
Verified employee purchase (What's this?)

I've been using the EQS for 2 years now and It has been very reliable. For what this unit does, it does very well and I have no complaints. If you are like me and don't want to spend a ton on an expensive DSP this is a very good compromise. The line driver on this plus EQ is really worth the price you pay, the signal is very strong and very clean. EQS makes it dummy proof to set this up and get going, especially with the clipping lights. To sum it up if your looking for some eq on a budget and don't want to get a DSP (Digital Signal Processor) than this is the next best thing. Pros: Build quality and sound plenty of bands for adjustment small form factor Cons: none for me

Pros:

Cons:

Crutchfield response on

8 of 8 found this helpful

Perfect for factory head units

Keith from Marrero, LA on 2/4/2012

Verified customer (What's this?)
Verified employee purchase (What's this?)

Nice unit with lots of equalization and tuning options. I was running speaker level inputs so this was perfect to clean up the signal. I had never heard of them so my trust in the Crutchfield advisor was how I based my decision.

Pros: Lots of signal processing options. You can get a really nice sound from the factory head unit with this processor.

Cons: It takes a bit of tinkering to get the sound right and any bugs out of it. I had a whine which I was able to phase out by lowering the amp gains to their lowest setting and adjusting the input and output on the processor. The manual said to start by setting the volume to 3/4, but I set it at about half way up then connected everything and cranked it up. Then I set my equalizer settings, & I have not touched it since. It did take about a week of listening to set it to where I have it now,

Crutchfield response on

16 of 20 found this helpful

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Crutchfield response

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More details on the AudioControl EQS

Russ B.

Product Research

Features

Description: The EQS is a 6-channel equalizer/line driver. There are are dedicated 7-band graphic equalizers for the front and rear outputs, and a 6-band graphic equalizer for the subwoofer output.

Dual Bandwidth Equalization: A total of 13 bands are available over two bandwidths:

  • Front/Rear EQ: Two 7-band equalizers feed the front and rear outputs; the center frequencies of both are 120 Hz, 160 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, and 10 kHz. The rotary knobs adjust the signal +/-12 dB. There's a notch at each knob's center position so it's easy to return to the flat setting.
  • Subwoofer EQ: A 6-band 1/3 octave equalizer feeds the subwoofer outputs; the center frequencies are 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 kHz, and 100 kHz. The rotary knobs adjust the signal +/-12 dB. There's a notch at each knob's center position so it's easy to return to the flat setting.

Line Driver: To achieve the best possible signal to noise ratio and dynamic range from your amplifier, the built-in line driver can increase the head unit's output voltage up to 18 dB (9.5 volts RMS/13 volts peak).

Input Gain: The input gains for the front, rear, and sub channels are set independently. The range is adjustable +/-12 dB to match the source output to the EQ input.

Output Level: The +20 dB maximum output level allows 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.

Balanced Inputs: Using the balanced differential input circuit cancels noise picked up in the transmission line between the EQS the the source unit.

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.

Auto Select Inputs: The EQS automatically switches the inputs to maximize the equalization controls, whether you use two, four, or six preamp inputs.

Speaker Level Inputs: The 4-channel speaker level inputs are compatible with most factory installed radios, even most Bose systems.

Terminal Blocks: The power/ground/remote terminal and the speaker level input terminals are removable; the wiring is attached to the block, then the block is plugged into the EQS. The terminal block will accommodate wire up to 12 gauge.

Subsonic Filter: The subsonic filter crossover point is 33 Hz. The crossover point is governed by a replaceable chip, so it can be modified.

Specifications:

  • Maximum Line Input: 15 volts RMS
  • Maximum Speaker Level Input: 100 watts/channel
  • Maximum Output: 9.5 volts RMS/13 volts peak
  • Frequency response: 10 Hz-100 kHz; ±1 dB
  • THD: 0.003%
  • S/N Ratio: 110dB
  • Balanced Input Noise Rejection: 60 dB
  • Input Impedance: 20 kΩ
  • Output Impedance: 150 ohms

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Customer Q&A

2 questions already asked

Q
I only have components speakers in front with a sub in the rear. Can the front and rear channels on the eq be used as right and left channels?
[ Jim  Sep 14, 2017 ]
1 answer
A
The front channels already provide the left & right stereo outputs so, there would be no need to use the rear left & right pair for your component speakers channels.
[ Ryan  Sep 16, 2017 ]  Staff
Q
I am considering installing this unit in an infiniti g35 using the bose head unit's output to remove the bose amplifier from the sound syatem. The eqs will then send the signal to my JL XD 400/4 for fronts and rears and a JL JX 1000 for the sub channel. Its difficult to find accurate information about the signal from the bose head unit, but i gather its a low level balanced differential line. Im unclear on how the 4 channels function, however, and ive been told there are two channels dedicated front / back and two for left / right. In any case, my question is will this unit accept the 2005 g35's 4 line level, balanced differential bose channels for input? Additional questions: Should I terminate the line level cables from the head unit with rca plugs to use the line level inputon the eqs , or will the speaker level input accept a line level balanced differential signal? Assuming the 4 channels are a non-conventional L/R/F/B, can the eqs be setup to convert into this to conventional FL/FR/BL/BR output? Finally, if i wind up keeping the crappy bose amp, does the eqs offer channel summing capability to ensure im sending a full range signal to the amplifiers?
[ Ryan  Jan 25, 2014 ]
1 answer
A
Thanks for your questions. For information on selecting the best gear for your system I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.
[ Krissy  Jan 26, 2014 ]  Staff

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