EarthQuake MB1 Installation 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

MB1 Digital Bass Synthesizer

Installation Manual

TABLE OF CONTENTS

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1 - 1 1/2

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1/2

1/4 or less

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115

90
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95

This chart shows Permissible
Noise Exposure according to the
US Governments’ Occupational
Safety and Health Administration
(OSH A) regulations that were in
e f f e ct a t th e t im e o f t hi s
publ ic at ion (a s pe r 29 C F R

1910.95, Table G-16).

SOUND LEVEL DURATION IN HOURS

Earthquake products are capable of generating high sound
pre ssure levels. You shou ld exer cise caution when

operating these products. Long term exposures to high
levels of sound pressure will cause permanent damage to your hearing.
Sound pressure levels exceeding 85dB can be 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.

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All specifications are subject to change without notice.

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OUR THANKS

Thank you for choosing Earthquake Sound’s MEGA BASS digital bass

synthesizer for superior enhancement of your vehicle’s audio system. With
proper installation and responsible listening, your bass synthesizer will give
you years of phenomenal listening enjoyment.

We strongly recommend having your new bass synthesizer 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 10-11) in its
entirety and use good judgment when making these vital decisions.

Our thanks

Care and Maintenance
Why the MB1 MEGA BASS?

MB1 Overviews
Pre-Installation Procedure

Installation & Wiring Configuration

Adjusting the Bass Output Setting
Specifications, Factory Settings & Options
Troubleshooting
Warranty Guidelines

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All specifications are subject to change without notice.

www.earthquakesound.com

WHY THE MB1 MEGA BASS?

The bass response in a system is affected by four (4) factors:

1. The acoustics of the vehicle

2. The location of the speakers

3. The music being played

4. The speakers and/or speaker enclosures
Due to the variations in the recording process, the MB1 is engineered with
amazing features to help restore any low frequencies lost during the process or
cause by the source unit, regardless of the different environment acoustics.

ADVANCED DIGITAL BASS RESTORATION SYSTEM
The MB1 MEGA BASS Digital Synthesizer contains a bass maximization
circuit that perfectly reproduces and pumps low frequency back into the
voltage line. Therefore, this synthesizer will enhance bass impact when using
CDs, tapes and portable media players.

SUBWOOFER MAXIMIZATION CONTROL CIRCUITRY

The MB1’s advanced bass equalization circuit contours the restored bass to
your speaker system.

EASY ACCESS DASH MOUNT CONTROL CENTER

The MB1 is designed to be mounted anywhere in the vehicle, with the
exception of the obvious places like the bumpers and gas tank. Each MB1
comes with a dash mount control center which allows you to control the
intensity of the system’s bass output right from the driver’s seat. In addition, the
dash mount unit comes with a built-in dual LED that dims and brightens as the
bass increases and decreases.

DPF (DC PROTECTION FILTER)

The MB1’s DPF overdrive circuitry allows the user to have massive, hard
hitting, concrete shattering bass while protecting the speakers from DC
failures, commonly found in other bass enhancement devices.

BASS EXPANDER LIMITER

The MB1’s Bass Expander Limited circuitry allows it to enhance the bass
output of any audio system while controlling damaging burps.

CARE AND MAINTENANCE

Your Earthquake MB1 bass synthesizer is an example of superior design and
craftsmanship. The following advisories will help you care for your bass
synthesizer so you can enjoy it for years to come:

Keep the bass synthesizer 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 bass synthesizer 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 bass synthesizer only in normal temperature
environments. Temperature extremes can shorten the life of
electronic devices and warp or melt plastic parts.

Keep the bass synthesizer away from dust and dirt, which can
cause premature wear of parts.

BASS CONTR OLS

The WIDE knob adjusts how wide of a frequency range the MB1 will
affect. The SWEEP knob allows you to pick the center frequency
(between 27Hz and 63Hz) that you want the MB1’s restoration circuit
to maximize.

POWER INDI CATOR

Indicates that all the wires are properly connected. If it does not light
up, please check all wiring.

BALANCED INPUTS

Designed to handle very high signal voltage up to 15 Volts, these
balance inputs also help minimize feedback.

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All specifications are subject to change without notice.

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OUTPUT CONNECTIONS

These RCA connectors should be connected to the next component
after the MEGA BASS, such as a crossover, equalizer or amplifier.
NOTE: The MB1 should be in line before a crossover.

DASH INPUT CONTROL

This allows you to connect the MB1’s remote control knob. You can
mount the knob anywhere you want. However, it is commonly
mounted in the front of the vehicle.
NOTE: The remote control knob must be connected for the MB1

to operate properly.

POWER CONN ECTIONS

This connector allows you to connect the Ground and Remote
TURN-ON signals to the MB1. Carefully remove the connector. In a
well lit area, properly connect all the wires. Once you decide the
mounting location of the MB1, plug the connector back to the MB1.

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MB1 OVERVIEW - EXTERNAL

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Digital Bass Synthesizer