Cerwin-Vega HED Series User manual

Congratulations for purchasing the Cerwin-Vega Mobile EQ770 for your car audio
system. you have chosen the Cerwin Vega Mobile because you deserve the best!
The Cerwin Vega Mobile EQ770 7 Band Graphic Equalizer is designed and engineered
to reproduce extreme bass in your vehicle! Our authorized Cerwin Vega Mobile dealers
can help guide you with various installation applications and technical information in
order to customize your sound your sound system according to your own listening
preference. It is highly recommended that you have your new EQ770 installed by an
authorized Cerwin Vega Mobile dealer to ensure that you receive the ultimate listening
experience!
If you decide to install the amplifier processor by yourself, please thoroughly read this
manual before getting started. This manual will help familiarize yourself with this product
and guide you through the installation process and procedures for this particular
product. Please contact your local authorized Cerwin Vega Mobile dealer if you have
any questions regarding the instructions in this manual or the EQ770 processor’s
application capabilities. If you require the additional assistance, please contact the
Cerwin Vega Mobile Technical Support Department during buseiness hours at
213-261-4161
We reserve the right to change the products and specifications at any time without notice.
Images may or may not include optional equipment.
2
Introduction

Features
•Master volume control with up to 7 volts RMS of output.
•Seven band parametic equalizer with 12 Boost/Cut.
•Specific bandwidth for each band plus high frequency shelving.
• On-board 30V bipolar switching power supply.
• Subwoofer level control.
• Subwoofer frequency selection.
• NI-Plated RCA input/output switch.
• Input AUX/MAIN select switch
• Night illumination design.
• AUX/MP3 Input.

1. SUBWOOFER LEVEL
- This control adjust output subwoofer level.
2. VOLUME CONTROL
- This control adjust the output level.
3. INPUT SELECTOR SWITCH
- This switch selector is for the AUX or MAIN input.
4. AUX 2 INPUT
- This switch is for MP3 input or second choice.
5. FADER CONTROL
- This control adjust the volume between the front and rear in 4 speakers.
6. PARAMETIC EQUALIZER CONTROL
- Control the frequency response of the Booster or cut with the fortune controls
each 50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, 16KHz.
7. LOW PASS FREQUNCY
- This switch select Low Pass Frequency, 60Hz/90Hz
8. AUX VOLUME CONTROL
Function
1 2 3 4 5 6
7
8

5
Installation
+
+
WASHER
SPRING WASHER
M4.015 TAPPING
SCREW
M3.0X10 MACHINE
SCREW
SPRING WASHER
WASHER
+
Front
speaker
Main Amplifier for
front output
Main Amplifier for
Rear output
Main Amplifier for
subwoofer ouput
Subwoofer
speaker
Rear
speaker
MAIN
AUX PLAYER
In Car Chassis
to CD Rom
to CD +12V
+ +
1. Select the desired location to mount unit under the dash board.
2. Drill (4) 4.2 m/m diameter holes. Fix the mounting bracket under dash or hump (4) 4x15
m/m tapping screw. Be careful when drilling so as not to damage existing wiring under the dash
board.
3. Mount unit to the mounting brackets with (4) 3x10 m/m machine screw.

6
Operation & Specifications
Power Supply
Maximum Output voltage
Pre Graphic Frequency
Equalization Range
Subwoofer Frequency
Input Impedance
S/N Ratio
Channel Separation
Frequency Response
SPECIFICATIONS
11 - 15V DC Neg. Ground
7V RMS
50Hz, 125Hz, 315Hz, 750Hz
2.2KHz, 6KHz, 16KHz
+ 12 dB
60/90 Hz
10K Ohms
90 dB
70 dB
10Hz-50KHz (-3dB)
OPERATION
1. When radio cassette or CD player connected to this unit is turned ON, the unit
turns ON and the indicator lights up.
2. With the 4 speakers system, use fader control to adjust the second balance between
the front and rear speakers.
3. Rotate the graphic equalizer controls to obtain the preferred sound quality.
4. Use the subwoofer output level. Control on the front to adjust the second leve
heard from the subwoofer.

Thank you for purchasing a Cerwin Vega Mobile product and we hope to
provide you with countless hours of listening enjoyment.
Cerwin Vega Mobile warrants all of our amplifiers and speakers to be free of
defects in materials and workmanship for a period of one (1) year.
This warranty is non-transferable and applies only to the original purchaser
from an authorized Cerwin Vega Mobile dealer. If service is required and
necessary under this warranty due to manufacturing defect or malfunction,
then Cerwin Vega Mobile will repair and/or replace defective product with
either new or remanufactured like product at no charge at our discretion.
Damage to product caused by the following will not be covered under this
warranty: abuse, accident, misuse, neglect, modifications, repairing attempts,
seller/installer misrepresentation.
This warranty does not cover any incidental, consequential, or cosmetic
damage due to accidents or normal wear and tear, nor does it cover the cost
of removing or reinstallation of the product.
Warranty is void if the products serial number has been removed, defaced,
and/or tampered with.
Warranty Procedure:
We recommend that you contact your Cerwin Vega Mobile authorized dealer
where your original purchase was made to initiate all warranty claims. Our
authorized dealers can guide you through the warranty procedure to ensure
that your claim will be processed in a timely manner. All warranty returns must
be accompanied with a proof of purchase (a copy of the original sales receipt)
and be shipped freight prepaid to our facility with an RA (Return Authorization)
number clearly marked on the outside of the package. Direct returns from
consumers or non-authorized dealers will be refused if shipped without a valid
RA number authorized by Cerwin Vega Mobile beforehand.
INTERNATIONAL
Products purchased outside of the U.S.A. are covered only by that country's
distributor and not by Cerwin Vega Mobile U.S.A.
Please Ship All Warranty Claims With Pre-Authorized RA Number
To:
CV&DA Holdings, Inc.
ATTN: Customer Service Department
3761 S. Hill St.
Los Angeles, CA 90007 USA
Please Contact Customer Service for Further Warranty Information: U.S.A.
Tel: [phone] / Fax: [phone] / Tech Support 213-212-3187
7
We reserve the right to change the products and specifications at any time without notice.
Images may or may not include optional equipment.