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Earthquake Sound EQ4000PXi

4-Band EQ-PXi Series Pre-Amplifier Equalizer

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This item has been discontinued

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Earthquake Sound EQ4000PXi

4-Band EQ-PXi Series Pre-Amplifier Equalizer

$79.95

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Product Features:
  • 4-Band Digital Equalizer
  • Gold-plated contacts for optimum signal transfer
  • Full fader action stereo outputs for the front and rear
  • Dual input capability for the CD player and main source
  • Non-faded stereo low pass output and input for auxiliary accessories
  • Master and subwoofer volume control
  • Low-level outputs: Front, Rear and Subwoofer
  • Subwoofer frequency and level control
  • Gold-plated RCA level inputs
  • Differential inputs and outputs
  • 1-year Sonic Electronix warranty
Product Specifications:
  • Number of Bands: 4
  • Input sensitivity: 250mV-12V
  • Signal-to-noise ratio: 100dB
  • Cut/Boost: +/-20dB
  • Equalization:
    • +/-20 dB @ 55 Hz
    • +/-16 dB @ 200 Hz
    • +/-14 dB @ 1,700 Hz
    • +/-20 dB @ 20,000 Hz
  • Equalization:
    • Variable 18 dB low pass crossover
    • 35-100 Hz Range
    • Variable 20dB Boost
  • THD: <0.005%
  • Input Impedance: 47 Kohm
  • Dimensions: 5"D x 6-1/2"W x 1"H

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.
4 band
Equalizer Frequencies
The frequency range that allows control of the center frequency of each equalization band.
55 - 20,000 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.
No
Line Driver
A line driver is a small amplifier used to support the strength of the audio signal coming from the source unit.
No
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.
Signal Boost/Cut
The available signal boost or cut for each of the frequency bands.
20 dB
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.
0.005%
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.
100 dB
Width
The width of the item from left to right (side-to-side) measured in inches.
6-1/2"
Height
The height of the item, measured from top to bottom, in inches.
1"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
5"

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
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
5.0
Albert

San Jose, CA

Overall
Durability
Value
Features
Design
Usability
Excellent EQ

December 14, 2011

I have had this EQ for a little over a year now, and I love it. It does the job and I got lots of flexability of costume with different FQ.

2 of 3 found this helpful

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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)

Your Price $15.99

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Product Summary

Manufacturer

Model Number

EQ4000PXi

UPC

1131368975903

Weight

1.91lbs

Internal SKU

eq4000pxi

Internal Product ID

27370

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: Earthquake Sound EQ4000PXi