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SAFETY RELATED SYMBOLS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Protective Ground Terminal

AC mains (Alternating Current)

Hazardous Live Terminal

ON:

Denotes the product is turned on.

OFF:

Denotes the product is turned off.

WARNING

Describes precautions that should be observed to
prevent the possibility of death or injury to the user.

CAUTION

Describes precautions that should be observed to
prevent damage to the product.

Always use proper ready-made insulated mains
cabling (power cord). Failure to do so could result
in shock/death or fire. If in doubt, seek advice from

a registered electrician.

To prevent fire and damage to the product, use only

Always install in accordance with the manufacturer's
instructions.

Keep product away from naked flames.

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions

Follow all instructions

Keep these instructions. Do not discard.

Heed all warnings.

Only use attachments/accessories specified by the
manufacturer.

Do not tamper with the power cord or plug. These are
designed for your safety.

Do not remove Ground connections!

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.

WARNING

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.

Protective Ground

Operating Conditions

Power Cord and Plug

Cleaning

Servicing

Power Supply

External Connection

Do Not Remove Any Covers

Fuse

Refer all servicing to qualified service personnel only. Do
not perform any servicing other than those instructions
contained within the User's Manual.

When required, either blow off dust from the product or
use a dry cloth.

Do not use any solvents such as Benzol or Alcohol.
For safety, keep product clean and free from dust.

If the plug does not fit your AC outlet seek advice from a
qualified electrician.

To avoid the risk of electric shock and damage, do not
subject this product to any liquid/rain or moisture. Do
not use this product when in close proximity to water.

Do not install this product near any direct heat source.

Do not block areas of ventilation. Failure to do so could
result in fire.

Never cut internal or external Ground wires. Likewise,
never remove Ground wiring from the Protective Ground
Terminal.

Before turning the product ON, make sure that it is
connected to Ground. This is to prevent the risk of
electric shock.

Covers should be removed by qualified service
personnel only.

Within the product are areas where high voltages may
present. To reduce the risk of electric shock do not remove
any covers unless the AC mains power cord is removed.

Ensure that the mains source voltage (AC outlet) matches
the voltage rating of the product. Failure to do so could

result in damage to the product and possibly the user.

Unplug the product before electrical storms occur and
when unused for long periods of time to reduce the risk of

electric shock or fire.

No user serviceable parts inside.

This symbol, wherever used, alerts you to impo-
rtant operating and maintenance instructions.
Please read.

This symbol, wherever used, alerts you to the pre-
sence of un-insulated and dangerous voltages with-
in the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.

Summary of Contents for EQU MK II Series

Page 1: ... 25K 2 5K 6 3K 12 5K 25 40 80 160 400 1K 2K 5K 10K 63 125 315 800 250 630 1 6K 4K 3 15K 8K 16K 20K 20 12 31 Band Graphic Equalizer INPUT OUTPUT SIG CLIP SIG CLIP RANGE EQ HI PASS 6 12 ON 16KHz 40Hz LOW PASS 6 6 R LTO OUTPUT POWER OUTPUT LTO R EQU MK Series User s Manual LTO R www altoproaudio com Version 1 3 April 2005 English ...

Page 2: ... to qualified service personnel only Do not perform any servicing other than those instructions contained within the User s Manual When required either blow off dust from the product or use a dry cloth Do not use any solvents such as Benzol or Alcohol For safety keep product clean and free from dust If the plug does not fit your AC outlet seek advice from a qualified electrician To avoid the risk ...

Page 3: ...UDIO TEAM and the one confirming the quality of our job we would like to share with you our work and our dreams pay attention to your suggestions and your comments Following this idea we create our products and we will create the new ones From our side we guarantee you and we will guarantee you also in future the best quality and the best fruits of our continuous researches and the best prices Our...

Page 4: ... INSTALLATION CONNECTION 8 4 1 Mains Connection 4 2 Audio Connection 4 3 Rack Mounting 5 APPLICATION 10 5 1 The Sound Frequency 5 2 Equalizer In Sound Reinforcement Systems Line Instrument Mixing Console 6 TECHNICAL SPECIFICATIONS 12 7 WARRANTY 13 3 Wiring Configuration In Line Connection Insert Points Connection ...

Page 5: ...llation in standard 19 rack space Manufactured Under QS9000 VDA6 1 certified management system 3 CONTROL ELEMENTS 3 1 The Front Panel 1 2 3 4 5 6 9 13 1 1 Thank you very much for expressing your confidence in LTO products by purchasing our EQU MKII Series Graphic Equalizers With the EQU you have acquired an extremely musical and flexible Graphic Equalizer The high end EQU MKII Series Graphic Equal...

Page 6: ...5 50 100 200 2 5K 6 3K 12 5K 25 40 80 160 2K 5K 10K 63 125 315 250 1 6K 4K 3 15K 8K 16K 20K INPUT LEVEL 500 1 25K 400 1K 800 630 Channel One Channel Two 0 12 12 0dB 12 12 6 6 SIG CLIP INPUT OUTPUT SIG CLIP 6 12 ON 16KHz 40Hz SIG CLIP RANGE EQ LOW PASS HI PASS R LTO Dual 31 Band Graphic Equalizer EQ INPUT LEVEL INPUT LEVEL Channel One Channel Two 20 31 5 50 100 200 500 1 25K 2 5K 6 3K 12 5K 25 40 8...

Page 7: ...s at 40Hz 12dB per octave The LED 12 indicator lights when the button is pressed and this filter is serving in the circuit 4 Low pass filter This button electronically inserts a filter into the signal path which cuts the high frequencies at 16KHz 12dB per octave The LED 13 indicator lights when the button is pressed and this filter is serving in the circuit 5 Clip LED This LED will light when any ...

Page 8: ...50VAC REPLACE FUSE WITH CORRECT TYPE ONLY Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk BALANCED UNBALANCED TIP PIN 2 RING PIN 3 SLEEVE PIN 1 INPUT BALANCED UNBALANCED TIP PIN 2 RING PIN 3 SLEEVE PIN 1 OUTPUT PUSH 2 1 3 NEW TIDE 14 14 17 16 15 GND LIFT SERIAL MODEL ON OFF POWER AC INPUT 95 120V 210 240V 60 50Hz Rated Power Consumption 18W FUSE 210 240V T100mAL 250VAC ...

Page 9: ...lease refer to 4 2 audio connection You must be sure of the Voltage available in your country because this is a Dual Voltage unit Voltage opera tion can be changed through the fuse protecting the power supply but this operation must be performed by a qualified engineer Either the 1 4 TRS phone jack or the XLR connector can be wired in balanced and unbalanced modes which will be determined by the a...

Page 10: ... 3 TIP RING SLEEVE TIP RING SLEEVE TIP SLEEVE SLEEVE RING TIP Unbalanced TIP RING SLEEVE Balanced 2 1 3 1 2 3 1 2 3 1 2 3 1 2 3 SLEEVE TIP SLEEVE RING TIP For these applications the EQU MKII Series Graphic Equalizer provides 1 4 TRS connectors XLR connectors and RCA connectors to easily interface with most any professional audio device Follow the configuration exam ples below for your particular c...

Page 11: ...lin Viola Cello Double Bass Guitar KEYBOARDS Pianoforte Organ PERCUSSION Celesta Timpani Xylophone FREQUENCY 25 31 40 50 62 80 100 125 160 200 250 320 400 500 640 800 1K 1 3K1 6K 2K 2 5K 3 1K 4K 5K 6 2K 8K 10K 13K 16K 20K Mid C 10 5 APPLICATION 5 1 The Sound Frequency Typical Frequency of Each Instrument and Voice In recording studios as well as stage or radio plays the EQU MKII Series Graphic Equ...

Page 12: ...Graphic Equalizer can be used on an entire mix In line between a instrument outputs and a power amplifier and this is the basic application in the PA system to offer precise equalization control The EQU MKII Series Graphic Equalizer can also be used on a single instrument by connecting to a mixing console s main inserts esp for those consoles without built in equalization circuitry INPUT LEVEL INP...

Page 13: ...t fixed button type 20Hz to 50KHz at 1 5dBu 0 01 1KHz all VR at middle position 110dB 95V 120VAC 60Hz 220V 240VAC 50Hz 60Hz 2 31 band 1 3 octave ISO spacing 18W 2 31 band 1 3 octave ISO spacing 18W 2 31 band 1 3 octave ISO spacing 18W 1 31 band 1 3 octave ISO spacing 9W 1 31 band 1 3 octave ISO spacing 9W 2 15 band 1 3 octave ISO spacing 9W 2 15 band 1 3 octave ISO spacing 9W 483 W 220 D 44 H 19 8...

Page 14: ...d LTO of 1 year from the purchase date if you have completed the Warranty Registration Card in time 3 3 During the warranty service may repair or replace this product at its own option at no charge to you for LTO parts or for labor in accordance with the right side of this limited warranty 3 4 This warranty does not apply to the damages to this product that occurred as the following conditions Nor...

Page 15: ...2 22621603 email info altoproaudio com cn Fax 852 27550223 All rights reserved to ALTO All features and content might be changed without prior notice Any photocopy translation or reproduction of part of this manual without written permission is forbidden Copyright 2005 ALTO CHINA LIMITED http www altoproaudio com cn ...

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