EarthQuake EQ-4000BT User manual

The Sound That Will Move You
Earthquake Sound Corporation
2727 McCone Avenue Hayward CA, 94545. USA
US Toll Free: 1-800-576-7944 | Tel: [phone] | Fax: [phone]
www.earthquakesound.com
EQ-4000BT Equalizer
Owner’s Manual

TABLE OF CONTENTS
CARE AND MAINTENANCE
Your Earthquake Stereo 4-Band Graphic Equalizer is an example of superior
design and craftsmanship. The following advisories will help you care for your
equalizer so you can enjoy it for years to come.
Keep the parametric equalizer dry. If it gets wet, wipe it dry
immediately. Liquids contain minerals that can corrode electronic
circuits. Additionally, liquids can cause severe electrical shock.
Handle the parametric equalizer gently and carefully. Dropping it
can damage the circuits or cause components to break or
become loose. These kind of actions can cause the units to work
poorly or improperly.
Use and store the parametric equalizer only in normal
temperature environments. Temperature extremes can shorten
the life of electronic devices and warp or melt plastic parts.
Keep the parametric equalizer away from dust and dirt, which can
cause premature wear of parts.
3
2
1 - 1 1/2
1
1/2
1/4 or less
8
6
4
97
100
102
105
110
115
90
92
95
This chart shows Permissible
Noise Exposure according to the
US Governments Occupational
Safety and Health Administration
(OSHA) regulations that were in
effect at the time of this
publication (as per 29 CFR
1910.95, Table G-16).
SOUND LEVEL DURATION IN HOURS
Earthquake products are capable of generating high sound pressure
levels. You should exercise caution when operating these products.
Long term exposures to high levels of sound pressure will cause
perm anent damage to your hearing. Sound pressure levels exceeding 85dB can
b e dangerous with constant exposure. Set your audio system to a comfortable
loudness level. Earthquake Sound Corporation does not assume liability for
damages resulting from the direct use of Earthquake amplifiers or other Earthquake
products , and urges users to play their music at moderate listening levels.
CAUTION:
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All specifications are subject to change without notice. www.earthquakesound.com
Care and Maintenance
Front Panel Overview
Wiring Configurations
Mounting Instructions
Input Gain Settings
Warranty Guidelines
Features & Specifications
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Back Cover
Thank you for choosing Earthquake Sound’s EQ-4000BT equalizer for
superior enhancement of your mobile audio system. With proper installation
and responsible listening, your equalizer(s) will give you years of near perfect
sound reproduction. We strongly recommend you to have your new
equalizer(s) installed by an authorized Earthquake Sound dealer. Installation
professionals employed by your dealer have the correct tools and knowledge
to install your product neatly and successfully. Also, when your new products
are installed by an authorized dealer, your product will include a FIVE (5) YEAR
LIMITED WARRANTY.
If you choose to perform your own installation, your warranty will be subject to
limitations. Dealer policies on handling warranty requests may vary from one
dealer to the next. Please read the warranty information (page ) in its 11
entirety and use good judgment when making these vital decisions.

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All specifications are subject to change without notice. www.earthquakesound.com
6
EQ-4000BT FRONT PANEL OVERVIEW
4
4
3
3
2
25
1
7
7
1
FADER
Use this rotary knob to blend more action into either the
Front or Rear channels of the system.
VOLUME Control
Push in once to eject button then rotate to adjust volume.
AUX/MAIN Selector
Push button to switch between the MAIN input and AUX
input. Note that the EQ-4000BT has both front mounted
and back mounted auxiliary inputs. If the front mounted
auxiliary input is in use (when an audio source is plugged
in through the front 3.5mm jack), the EQ-4000BT will
automatically treat that audio source as the MAIN input.
BT ON/OFF Switch
®
Push button to switch turn on or off the Bluetooth feature
of the EQ-4000BT. To connect your device to the EQ-
®
4000BT, pop the BT button, enable the Bluetooth of your
device and pair to the EQ-4000BT. You can then
wirelessly play music from your device. If you want to
switch back to the MAIN/AUX input, push the BT button in
®
and the Bluetooth feature will be disabled.
SUB GAIN & SUB FREQ Controls
Gives you complete control of low musical frequency
ranges. The Sub knob is equal to level control. It allows
you to adjust subwoofer sound levels for a particular
source type: Tape, broadcast, CD, etc.
The subwoofer frequency crossover control allows you to
adjust the cross over point for your subwoofer system.
The EQ-4000BT features separate dual RCA outputs for
the subwoofer channel, so that the subwoofer(s) can run
on a separate amplifier or separate channels of a multi-
channel amplifier. The crossover is adjustable from 35Hz
to 100Hz. Depending on the subwoofer frequency
response, adjust this knob to the most desired setting.
4-BAND Controls
Gives you control of the higher musical frequency ranges
that most head units cannot accomplish.
AUX IN
This unique feature is for easy iPod and MP3 hook up.
Simply plug-n-play. Once this connection has been made,
it will override the MAIN input plugged into the back of the
unit.
BT OFF
BT ON
5
6

WIRING CONFIGURATIONS
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All specifications are subject to change without notice. www.earthquakesound.com
AUX
MAIN
FRONT REAR SUB OUT Ground12VDC
Antenna
FRONT
REAR
SUB - USUALLY PLACED IN THE TRUNK
TO HEAD UNIT POWER/12VDC
STOCK OR AFTER
MARKET HEAD UNIT
(RADIO, STEREO)
AUXILLARY
SOURCE
TO AMP REMOTE
TO HEAD UNIT GROUND
OR VEHICLE CHASSIS
BT OFF
BT ON
MiNi D
1000.4
BOOST X-OVER
REAR
REAR
FRONT
FRONT
POWER
FREQ GAIN R
L
R
L
40Hz 400Hz MIN
0dB 12dB
X-OVER BOOST
0dB 12dB
LPF
LPF HPF HPF
FLATFLAT
MAX
FREQ
40Hz 400Hz
GAIN
MIN MAX
IN IN
FUSE
+
+
+
GND
REM
+12V
BRIDGED
RR RL
FLFR
(4-Ohms)
+
MiNi D
1
000
-
INPUT
+ -0 dB+-3dB
+
TWEETER
-0 dB+-3dB +
WOOFER
-
INPUT
+ -0 dB+-3dB
+
TWEETER
-0 dB+-3dB +
WOOFER

MOUNTING INSTRUCTIONS
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All specifications are subject to change without notice. www.earthquakesound.com All specifications are subject to change without notice. www.earthquakesound.com
4X
Mounting Ears
to
Equalizer
5/16” (7.9375mm)
Machine Screws
Mounting Ears
to
Dash Board
4X
3/4” (19.05mm)
Tapping Screws
+
+
DASH BOARD
BT OFF
BT ON

US Toll Free
E-mail
1-800-576-7944
[email protected]
TECH SUPPORT
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All specifications are subject to change without notice. www.earthquakesound.com
Input Gain's Position Source Voltage
>13V
2V
1V
200mV
Volume Control
Position
MAX
MAX
MAX
MAX
9 O'clock
12 O'clock
3 O'clock
MAX
4.2V
4V
3V
600mV
Front & Rear Output
V @ 0.1% THD
5V
5V
5V
1.6V
Subwoofer Output
Voltage (Sub Gain @ MAX)
EQ-4000BT
INPUT GAIN SETTINGS
Designed to set the maximum upper volume level, the Input Gain is a tool for installer to protect the system from excessive high volume. Note that the Input Gain
level depends on the sources’ maximum signal strength (expressed in Voltage). Your installer will need to know the output voltage of the source unit(s) in order to set
the Input Gain accordingly.
Below, please find sample settings of the Input Gain according to the source units’ output voltages:

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All specifications are subject to change without notice. www.earthquakesound.com
WARRANTY GUIDELINES
Product/part damaged due to poor packaging or abusive shipping conditions.
Subsequent damage to other products.
A warranty claim will not be valid if the warranty registration card is not properly filled &
returned to Earthquake with a copy of the sales receipt.
(E) Service Request:
To receive product(s) service, contact Earthquake Sound’s service department at
[phone] and request an RMA number (Return Material Authorization), item(s)
shipped without a valid RMA number will be refused. Make sure you provide us with
your complete and correct shipping address, a valid phone number, and a brief
description of the problem you are experiencing with the product. In most cases, our
technicians might be able to resolve the problem over the phone, thus eliminating the
need to ship the product.
(F) Shipping Instructions:
Product(s) must be packaged in its original protective box(es) to minimize transport
damage. Shipper claims regarding item(s) damaged in transit must be presented to
the carrier. Earthquake Sound Corporation reserves the right to refuse improperly
packed product(s). A copy of original sales receipt must accompany product(s)
returned for service. We encourage you to include a written description of the problem
inside the package. Ship product to:
Earthquake Sound Corp.
2727 Mc Cone Avenue.
Hayward, CA 94545
You are responsible for the cost of shipping the product to Earthquake Sound
Corporation.
(G) Disputes Resolution:
All disputes - between clients and Earthquake Sound Corporation - resulting from the
five (5) years limited warranty policy must be resolved according to the laws &
regulations of the county of Alameda, California.
Earthquake warrants the original purchaser that all Factory Sealed New Audio Products
be free from defects in material and workmanship, under normal and proper use, for a
period of five (5) years from the date of purchase (as shown on the original sales receipt
with serial number affixed/written on it).
The five (5) years warranty period is valid only if the product is properly installed by an
Earthquake authorized party, and the warranty registration card is properly filled out and
sent to Earthquake Sound Corporation.
If the product is installed by a non-authorized party, a ninety (90) days warranty
period applies.
(A) Five (5) years limited warranty plan coverage guidelines:
First year: Earthquake pays for labor, parts, and ground freight (only in US
mainland, not including Alaska and Hawaii) back to customer.
Second third, fourth & fifth year: Earthquake pays labor only. Customer must pay for
parts and freight both ways.
(B) Warning:
Products (sent for repair) that are tested by Earthquake technicians and deemed to
have no problem, will not be covered by the five (5) years limited warranty. Customer
will be charged a minimum of one (1) hour of labor (ongoing rates) plus shipping
charges back to customer.
(C) Earthquake agrees to repair or replace - at our option - all such defective
products/parts subject to the following provisions:
Defective products/parts have not been altered or repaired by other than an
Earthquake factory approved technician.
Products/parts are not subjected to negligence, misuse, improper use, or accident,
damaged by improper line voltage, used with incompatible products, or have its
serial number or any part of it altered, defaced, removed, or have been used in any
way that is contrary to Earthquake's written instructions.
(D) Warranty Limitations:
Earthquake warranty does not cover products that have been modified and/or
abused, including but not limited to the following:
Damages to enclosure or part due to misuse, abuse, or improper use of cleaning
materials/methods.
Bent frame, broken speaker connectors and burnt tracers on PCB.
Fading, deterioration of components and finish due to improper exposure to
elements.

Operating Voltage: 10.5---16VDC
Idle: 280 mA
Recommended fuse size: 1 Ampere
Input sources: 2 stereo RCA sources, 1 Phono source
Input sensitivity: Adjustable from 100mVrms up to 14 Vrms
Input impedance: Variable from 8 kOhm up to 10.2 kOhm
Output Impedance:
Sub channel: 510 Ohm
Front & Rear channels: 6.3 kOhm
Output Level:
Subwoofer channel: 5 Vrms @ 0.1% THD
Front & Rear channels: 4 Vrms @ 0.1% THD
T H D @ 3 Volts output: 0.05%
Frequency response: 15 - 34000Hz @ -3dB
Subwoofer frequency control range: 35 to 120Hz (@ -3db, 18dB/oct.)
Subwoofer upper cut off frequency: 100Hz
Channel separations: 68dB
Signal to noise ratio: 92dB
Center frequencies (in Hz): 50, 200, 2000, 15000
Control Range: 30~40dB (12 O'clock is the Bypass position)
Dimensions(H x W x D): 1" x 7" x 4-1/4" (Without Face Plate)
EQ-4000BT SPECIFICATIONSEQ-4000BT FEATURES
4-band Parametric Equalizer with Bluetooth streaming capability
Fully retractable controls
iPod/MP3 Ready
Fader Action
6-channel RCA Outputs (front/rear/subwoofer)
Adjustable Master Volume Level Control
Adjustable Subwoofer Level Control
3 Input Sources
Input Gain (it Sets The Maximum Volume Level Achievable By The Front
Controls)
Gold Plated RCAs
Easy Snap On Connector
Blue Background LED
Copyright © Earthquake Sound Corporation
Earthquake Sound reserves the right to amend details of the specifications without notice.