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User's Manual
15/31 Band Graphic Equalizer
EQU Series
R
LTO
www.altoproaudio.com
Version 2.0 Dec. 2002
English
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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- Before turning the product ON, make sure that it is sence of un-insulated and dangerous voltages with- connected to Ground. This is to prevent the risk of in the product encl
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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. The LTO line presents unparalleled analogue and digital products made by Musicians for M
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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.
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21 3 1 2 3 1 2 1 2 1 2 1 2 1 2 3 3 3 3 3 - In Line Connection For these applications the EQU 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 examples below for your particular connection. Balanced Tip Tip Ring Ring SLEEVE RING TIP TIP RING SLEEVE Sleeve Sleeve 1 1 2 2 3 3 Tip 1 Ring 2 TIP RING SLEEVE Sleeve 3 Unbalanced Tip 1 Ring 2 TIP RING SLEEVE Sleeve 3 Tip 1 2 Sleev
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5. APPLICATION 5.1 The Sound Frequency In recording studios as well as stage or radio plays, the EQU Series Graphic Equalizer will be your valuable sound tool to modify the frequency "contour" of a sound. But first of all, you should clarify the typical frequency of each instrument and voice, so that can you obtain nice results in terms of sound characterization. The tables on the following pages give you an idea of specific frequencies and their acoustic significance. Typical Frequency of Each
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5.2 Equalizer In Sound Reinforcement Systems The EQU 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. Allow you to modify the sound of the instrument if put EQU Series Equalizer in line with a musical instrument. you can brighten the sound, an
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6. TECHNICAL SPECIFICATIONS Type EQU131 1 31 Band: 1/3 octave , ISO spacing (1H series) 2 15 Band: 2/3 octave , ISO spacing (1H series) EQU215 2 15 Band: 2/3 octave , ISO spacing (2H series) EQU2215 1 31 Band: 1/3 octave , ISO spacing (2H series) EQU131VU 2 31 Band: 1/3 octave , ISO spacing (2H series) EQU231VU / 231LED EQU231TWIN 2 31 Band: 1/3 octave , ISO spacing (4H series) Slider travel 20mm with positive centre detente (EQU131/EQU215/EQU231VU/EQU231LED) 60mm with positive centre detente (E
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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. Please fill out all the information carefully and genuinely, miswriting or absence of this card will
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SEIKAKU TECHNICAL GROUP LIMITED No. 1, Lane 17, Sec. 2, Han Shi W. Road, Taichung, 401 Taiwan http://www.altomobile.com Tel: 886-4-22313737 email: info@altomobile.com Fax: 886-4-22346757 All rights reserved to ALTO Mobile. Due to continued development in response to customer feedback, product features, specifications and/or internal/external design may be changed without prior notice. No photocopying, translation or reproduction of any part of this user c manual is allowed without prior written
