Table of Contents
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EQU MK
R
LTO
20
25
31.5
40
50
Series
31 Band Graphic Equalizer
63
80
100
125
160
200
250
315
400
500
630
User's Manual
800
1K
1.25K
1.6K
2K
2.5K
3.15K
4K
5K
6.3K
8K
15/31 Band
Graphic Equalizer
OUTPUT
+12
+6
+12
R
LTO
POWER OUTPUT
0
0dB
INPUT
OUTPUT
SIG
CLIP
SIG
CLIP
6
12
40Hz
16KHz
ON
-12
- 6
-12
RANGE
HI
LOW
EQ
INPUT
PASS
PASS
10K
12.5K
16K
20K
LEVEL
LTO
www.altoproaudio.com
Version 1.3 April 2005
English
EQU131VU
GRAPHIC MONO
31 BAND EQUALIZER
/VU METER
R
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Table of Contents
Related Manuals for Alto EQU MK II Series
Summary of Contents for Alto EQU MK II Series
- Page 1 User's Manual 15/31 Band EQU MK Series Graphic Equalizer 31 Band Graphic Equalizer OUTPUT EQU131VU POWER OUTPUT GRAPHIC MONO INPUT OUTPUT 31 BAND EQUALIZER /VU METER CLIP CLIP 40Hz 16KHz RANGE INPUT PASS PASS 31.5 1.25K 1.6K 2.5K 3.15K 6.3K 12.5K LEVEL www.altoproaudio.com...
- Page 2 the recommended fuse type as indicated in this manual. SAFETY RELATED SYMBOLS Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is OFF and disconnected CAUTION from the AC outlet. RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Ground This symbol, wherever used, alerts you to the pre-...
- Page 3 Preface Dear Customer: Thanks for choosing LTO Graphic Equalizer and thanks for choosing one of the results of LTO AUDIO TEAM job and researches. For our LTO AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say...our obse -ssion! We have been designing professional audio products for a long time in cooperation with some of the major brands in the world in the audio field.
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Page 4: Table Of Contents
TABLE OF CONTENT 1. INTRODUCTION ...........................4 2. FEATURE LIST .............................4 3. CONTROL ELEMENTS .........................4 3.1 The Front Panel 3.2 The Rear Panel 4. INSTALLATION & CONNECTION .......................8 4.1 Mains Connection 4.2 Audio Connection - Wiring Configuration - In Line Connection - Insert Points Connection 4.3 Rack Mounting 5. -
Page 5: Introduction
1. INTRODUCTION 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 Equalizers are based on many years of experience and are designed to pro- vide a permanent precise equalization to the musician, performer, studio engineer and sound contractor. - Page 6 EQU131VU- Front Panel 31 Band Graphic Equalizer OUTPUT EQU131VU POWER OUTPUT GRAPHIC MONO INPUT OUTPUT 31 BAND EQUALIZER /VU METER CLIP CLIP 40Hz 16KHz RANGE INPUT 31.5 1.25K 1.6K 2.5K 3.15K 6.3K 12.5K PASS PASS LEVEL EQU231 Front Panel INPUT INPUT OUTPUT OUTPUT...
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Page 7: The Rear Panel
2.Level control This control sets the input signal level to the equalizer. Its "0dB" position is unity gain (no boost or attenuation). If the clip LED (5) is light continuously, turndown this control until it only flickers occasionally. 3.High pass filter This button electronically inserts a filter into the signal path, which cuts the low frequencies at 40Hz (12dB per octave). - Page 8 EQU215TWIN Rear Panel AC INPUT 95-120V /210-240V 60-50Hz Rated Power Consumption 9W FUSE: 210-240V: T100mAL 250VAC 95-120V: T160mAL 250VAC REPLACE FUSE WITH CORRECT CHANNEL 2 CHANNEL 1 TYPE ONLY PUSH PUSH Apparaten skall anslutas till TIP/PIN 2 TIP/PIN 2 TIP/PIN 2 TIP/PIN 2 jordat uttag nar den ansluts RING/PIN 3...
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Page 9: Installation & Connection
16. 1/4" TRS phone plug input and output connector The 1/4" TRS connector are actively balanced and are used to input/output the signal. 17. RCA input and output connector The RCA connector are unbalanced. NOTE: While you can use any input connector with any output connector, only one set of these connectors is to be used at one time, detail wiring and connection, please refer to 4.2 audio connection. -
Page 10: In Line Connection
- In Line Connection 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 connection. Balanced Ring Ring... -
Page 11: Application
Clarinet in B flat or A Clarinet in E flat Bass Clarinet Basset Hom Cor Anglais Bassoon Double Bassoon BRASS Soprano Saxophone Alto Saxophone Tenor Saxophone Baritone Saxophone Bass Saxophone Trumpet in C Trumpet in F Alto Trombone Tenor Trombone Bass Trombone... -
Page 12: Equalizer In Sound Reinforcement Systems
5.2 Equalizer In Sound Reinforcement Systems The EQU MKII Series Graphic Equalizers can be used in the sound reinforcement systems to: Eliminate unwanted sounds, such as the 60Hz Hum noise. Shape the sound by changing the frequency response of the track. Special effects like telephone sounds are done by cutting off the low end to 200Hz and the high end to 6KHz. -
Page 13: Technical Specifications
6. TECHNICAL SPECIFICATIONS Type 2 31 Band: 1/3 octave, ISO spacing (2H series) EQU231VU-MKII 2 31 Band: 1/3 octave, ISO spacing (2H series) EQU231-MKII 2 15 Band: 2/3 octave, ISO spacing (3H series) EQU231TWIN-MKII 1 31 Band: 1/3 octave, ISO spacing (2H series) EQU131VU-MKII 1 31 Band: 1/3 octave, ISO spacing (1H series) EQU131-MKII... -
Page 14: Warranty
7. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a more effective and efficient after-sales warranty service. - Page 15 Tel:852-22621603 http://www.altoproaudio.com.cn 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 01783 -1.3...