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User's Manual
EQU MKII SERIES
www.altoproaudio.com
Version 1.2 NOV. 2007
LTO
R
R
R
RR
English
15/31 BANDS GRAPHIC EQUALIZER

CAUTION
RISK O F ELECTRIC SHOCK
DO NO T OPEN
IMPORTANT SAFETY INSTRUCTION
TO REDUCE THE RISK OF ELECTRIC SHOCK
PLEASE DO NOT REMOVE THE COVER OR
THE BACK PANEL OF THIS EQUIPMENT.
THERE ARE NO PARTS NEEDED BY USER
INSIDE THE EQUIPMENT. FOR SERVICE,
PLEASE CONTACT QUALIFIED SERVICE
CENTERS.
WARNING
To reduce the risk of electric shock
and fire, do not expose this equipment
to moisture or rain.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Dispose of this product should
not be placed in municipal waste
and should be separate collection.
11.
12.
Move this Equipment only with a cart,
stand, tripod, or bracket,
specified by the
manufacturer, or
sold with the
Equipment. When
a cart is used, use
caution when
moving the cart /
equipment
combination to
avoid possible
injury from tip-over.
Permanent hearing loss may be caused by
exposure to \ extremely high noise levels.
The US. Government's Occupational Safety
and Health Administration (OSHA) has
specified the permissible exposure to noise
level.
These are shown in the following chart:
According to OSHA, an exposure to high SPL in
excess of these limits may result in the loss of
heat. To avoid the potential damage of heat, it is
recommended that Personnel exposed to
equipment capable of generating high SPL use
hearing protection while such equipment is
under operation.
This symbol, wherever used, alerts you to the
presence of un-insulated and dangerous voltages
within the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.
This symbol, wherever used, alerts you to
important operating and maintenance instructions.
Please read.
Protective Ground Terminal
AC mains (Alternating Current)
Hazardous Live Terminal
ON: Denotes the product is turned on.
OFF: Denotes the product is turned off.
The apparatus shall be connected to a mains
socket outlet with a protective earthing
connection.
The mains plug or an appliance coupler is used
as the disconnect device, the disconnect device
shall remain readily operable.
CAUTION
Describes precautions that should be observed to
prevent damage to the product.
Read this Manual carefully before operation.
Keep this Manual in a safe place.
Be aware of all warnings reported
with this symbol.
Keep this Equipment away from water and
moisture.
Clean it only with dry cloth. Do not use
solvent or other chemicals.
Do not damp or cover any cooling opening.
Install the equipment only in accordance with
the Manufacturer's instructions.
Power Cords are designed for your safety. Do
not remove Ground connections! If the plug
does not fit your AC outlet, seek advice from
a qualified electrician. Protect the power
cord and plug from any physical stress to
avoid risk of electric shock. Do not place
heavy objects on the power cord. This could
cause electric shock or fire.
Unplug this equipment when unused for long
periods of time or during a storm.
Refer all service to qualified service personnel
only. Do not perform any servicing other than
those instructions contained within the
User's Manual.
To prevent fire and damage to the product,
use only the recommended fuse type as
indicated in this manual. Do not short-circuit
the fuse holder. Before replacing the fuse,
make sure that the product is OFF and
disconnected from the AC outlet.
HOURS X DAY
EXAMPLE
8
6
4
3
2
1,5
1
0,5
0,25 or less
SPL
90
92
95
97
100
102
105
110
115
Small gig
train
Subway train
High level desktop monitors
Classic music concert
Rock concert

IN THIS MANUAL:
1. INTRODUCTION.........................................................................1
2. FEATURES................................................................................1
3. CONTROL ELEMENTS................................................................2
4. APPLICATION............................................................................7
5. INSTALLATION & CONNECTION...................................................9
6. TECHNICAL SPECIFICATIONS
7. WARRANTY.............................................................................13
.....................................................12
1. INTRODUCTION
Thank you for your purchasing the EQU MKII series Graphic Equalizers.
With the EQU MKII series Graphic Equalizers you have acquired extremely
musical and flexible Graphic Equalizer. The high-end EQU MKII series are
based on many years of experience and are designed to provide a permanent
precise equalization to musician, performer, and studio engineer. They can be
used wherever is requested to modify the frequency "contour" of a sound and
can offer a solution to many common sound problems and allows the user to
use the creativity to obtain nice results in terms of sound characterization.
EQU Series Graphic Equalizers include the following seven models:
EQU131-MKII V2-Graphic Mono 31-Band Equalizer
EQU215-MKII V2-Graphic Stereo 15-Band Equalizer
EQU215TWIN-MKII-Graphic Stereo 15-Band Equalizer
EQU131VU-MKII-Graphic Mono 31-Band Equalizer/VU Meter 1
EQU231VU-MKII V2-Graphic Stereo 31-Band Equalizer/VU Meter 2
EQU231-MKII V2-Graphic Stereo 31-Band Equalizer
EQU231TWIN-MKII V2-Graphic Stereo 31-Band Equalizer
1
2. FEATURES
Constant Q circuitry with a 3% center frequency accuracy
Control range 6 dB/ 12 dB selectable
Active balanced and unbalanced input and output connectors
Variable input level control
Signal clip pilot
Ground "LIFT" switch to disconnect signal ground from chassis ground
Power off automatic bypass function
Line voltage selectable
Robust and compact design
Mountable in a 19" rack unit(1U)
Manufactured Under QS9000, VDA6.1 certified management system
Enjoy your EQU MKII and make sure to read this Manual carefully before
operation.
Produktspecifikationer
Varumärke: | Alto |
Kategori: | Processor |
Modell: | EQU231 MKII V2 |
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