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Precision Power PPI E.DZ

7-Band Dual Zone Graphic Equalizer with Auxiliary Input and Independent Subwoofer Control

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List price $89.95

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Arrives by Wednesday, Sept. 2 to zip 20147

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In Stock. Only 2 Left!

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Precision Power PPI E.DZ

7-Band Dual Zone Graphic Equalizer with Auxiliary Input and Independent Subwoofer Control


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E.DZ Features:
  • 7-Band Dual Zone Equalizer
  • Customizes and tunes the audio signals
  • 20dB Headroom switching power supply
  • Built-in low noise Bi-FET Op-amps
  • Dual selectable balanced RCA inputs
  • Adjustable gain input are the RCA inputs
  • Full range of equalization supported with the front, rear, and subwoofer RCA outputs
  • Four 18 dB front channel bands: 125, 500, 3500, 12000 Hz
  • Three 18 dB rear channel bands: 50, 600, 6300 Hz
  • Independent subwoofer level control for low frequencies
  • On-board low-pass filter is selectable: 32, 64, 128 Hz
  • Fader control
  • Red backlit control knobs are easy to see and match select interior lights
  • Includes a separate auxiliary input for playback of portable media devices
  • Auxiliary switch on the front of the equalizer
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
E.DZ Specifications:
  • Front channel bands (@ 18 dB): 125, 500, 3500, 12000 Hz
  • Rear channel bands(@ 18 dB): 50, 600, 6300 Hz
  • Boost/Cut: 18 dB
  • Signal-to-Noise Ratio: 115dB
  • Frequency Response: 10-15,000 Hz
  • Maximum output voltage:8V RMS
  • THD: 0.05%
  • Input Sensitivity: 150 mV
  • Headroom: 20 dB
  • Input Impedance: 10,000 ohms
  • Stereo Separation: 82 dB
  • Operating Voltage: 11-15V Negative ground
  • Output Impedance: 50,000 ohms
  • Selectable low-filter: 32, 64, 128 Hz
  • Dimensions: 4-1/2"D x 7"W x 1"H
  • 3 RCA Composite outputs (Front, Rear, and Subwoofer)
  • 2 RCA Composite inputs (CD and AUX)

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.
7 band
Equalizer Frequencies
The frequency range that allows control of the center frequency of each equalization band.
50 - 12,000 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)
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.
18 dB
Max Output Level
The maximum level (in volts) of signal output. A higher level will increase the clarity and boost your signal.
8 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 - 15,000 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.
115 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


Bronx, NY

Great equalizer

September 17, 2013

Simply does what its suppose to do. Great sound difference. Great control.

53 of 94 found this helpful

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Nor Cal


January 30, 2014

This EQ is kind of what I figured it would be for the price. I'm dissapionted that PPI has gone so far down hill.

52 of 95 found this helpful

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Bowling green ky, KY


November 7, 2013

This eq is easy to use the red led lights match my interior and makes my music sound nice and clear what I Dnt like the noise like a buzzin and doesn't really make my subs louder jus clear

41 of 81 found this helpful

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john p

morgantown, WV

what a deal

March 20, 2015

what a great deal sounds great easy to use not something is going to take four years to master it did everything I wanted it to do make my system sound great na I can tweak it around a little and it took all of three minutes to figure out if and easy to install I love it you will too!!!

24 of 49 found this helpful

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deez nutzz .inc


very nice unit (giggidy)

April 6, 2012

its a front on 4 knobs and a 3 on the rear knob type of deal. sounds weird? well its not its what ya want don't need to raise the treble and spoil the front and rear imaging . with this eq u can adjust 4 on the front and three on the rear. perfect for me.

needs to be illuminated tho. so i put night glow paint on my knobs so i can see them at night. not really much adjustment needed but i like to see where things are.
sub knob is good and so is the input volume. has a line driver in it also

if u need to constantly turn and adjust your eq, you need to better match your stuff. .

42 of 97 found this helpful

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Browse 1 question and 4 answers
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Why did you choose this?
Sonic Electronix Store
best price for the best sound
david c on Jun 6, 2015
8 volt output
Darren B on Sep 13, 2014
Good brand, and color correct with the red kenwood deck!
DeShawn H on Apr 3, 2015
i had one it was stolen but they sound great and looks cool you can really fine tune your car audio.
Carlos T on Sep 12, 2014

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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: Precision Power PPI E.DZ