Absolute EQ500

5-Band Crossover and Equalizer with Parametric Sub Band and Preamp Line Driver


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  • 5 Band In-Dash Graphic Equalizer with Parametric Sub Band and Line Driver
  • Front and Rear outputs with fader control
  • Subwoofer crossover at 60, 80, and 120 Hz
  • Separate subwoofer frequency and level control
  • Center-detented boost/cut controls
  • Auxiliary input
  • Selectable illumination
  • Gold-plated RCA input and output connectors
  • Independent left and right gain adjustments
  • Equalizer center frequencies: 40, 250, 500, 2000, and 10000 Hz
  • Equalization boost/cut: +/- 12 dB
  • Signal to noise ratio: 110 dB
  • Frequency response: 10-50,000 Hz
  • Maximum output voltage: 7 Volts RMS
  • THD: 0.03%
  • Operating voltage: 9-15V
  • Fits a half DIN slot
  • Dimensions: 4-5/8"D x 6-3/4"W x 1"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's 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.
5 band
Equalizer Frequencies
The frequency range that allows control of the center frequency of each equalization band.
40 - 10,000 Hz
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)
Built-in Bass Reconstruction
Bass reconstructors, or bass enhancers, improve low frequency reproduction in a car audio system with at least one subwoofer. These bass expander products will help your subs produce accurate bass thumps.
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.
Button Color
Refers to the color of the physical buttons on the unit.
Signal Boost/Cut
The available signal boost or cut for each of the frequency bands.
12 dB
Max Output Level
The maximum level (in volts) of signal output. A higher level will increase the clarity and boost your signal.
6.7 volts
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
10 - 50,000 Hz
THD (Total Harmonic Distortion)
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
110 dB
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Not a great buy

May 24, 2011

I would not recommend this product. The remote connection was not functional. I purchased it solely on it's size (depth) and Amber illumination. I recommend the Clarion, PPI or Audio Control.

4 of 4 found this helpful

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Morro Bay, CA

Absolute EQ500

March 9, 2011

I bought this and did not hook it up for about 6 months or so because my car was being restored. When I finally got around to hooking it up, the unit does not turn off, ever, even though it has a remote power correctly feeding 12 volts when the ignition is on.(Tested with voltmeter, several times). On a positive note, the unit is simple and elegant, comes in a great package, and includes the screws and such necessary for hook up. It is highly adjustable for my needs and the only problem function wise is that there is no left to right balance adjustment. Very Hard to read at night only the knobs light up, not the functions or positions. So, I think I blew it by not trying the product earlier and sending it back for a good one. I like it a lot, and will eventualy wire up a switch or relay for the main power line, so it turns off with the ignition, for now, it does not drain enough power overnight to affect starting in the morning....

1 of 2 found this helpful

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Mesa , AZ

Great Value

January 19, 2010

This was the missing link to my car audio. Now i can control my sub and highs and mids just how i like. Over all this is a good product for the money.
I give it a 7 out of 10

0 of 0 found this helpful

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Accessory Tools and Products

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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)

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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: Absolute EQ500

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Absolute EQ500

5-Band Crossover and Equalizer with Parametric Sub Band and Preamp Line Driver


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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)



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