User's Manual EQU MK 15/31 Band Graphic Equalizer Series 31 Band Graphic Equalizer OUTPUT +12 +6 +12 LTO R EQU131VU POWER OUTPUT R 0 LTO 0dB INPUT SIG 6 -12 - 6 20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K 12 OUTPUT CLIP SIG 40Hz 16KHz ON HI PASS LOW PASS EQ GRAPHIC MONO 31 BAND EQUALIZER /VU METER CLIP -12 INPUT LEVEL RANGE R LTO www.altoproaudio.com Version 1.
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. SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Ground 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.
Preface Dear Customer: Thanks for choosing and researches. LTO Graphic Equalizer and thanks for choosing one of the results of LTO AUDIO TEAM job 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.
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.
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 provide a permanent precise equalization to the musician, performer, studio engineer and sound contractor.
EQU131VU-MKII Front Panel 5 13 11 12 6 31 Band Graphic Equalizer OUTPUT +12 +6 +12 LTO R EQU131VU POWER OUTPUT R 0 LTO 0dB INPUT SIG 6 -12 - 6 20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K CLIP SIG 40Hz 16KHz ON HI PASS LOW PASS EQ CLIP -12 RANGE INPUT LEVEL 20K 12 GRAPHIC MONO 31 BAND EQUALIZER /VU METER OUTPUT 2 10 9 3 4 7 8 1 5 6 EQU231VU-MKII Front Panel 20 25 31.
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). The LED (12) indicator lights when the button is pressed and this filter is serving in the circuit. 4.
EQU215TWIN-MKII Rear Panel 19 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 TYPE ONLY CHANNEL 2 Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk ON TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 CHANNEL 1 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 NEW TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 TIDE NEW 3 2 MODEL TIDE 3 1 2 1 OFF POWER OUTPUT SERIAL
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. 18.
- 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 examples below for your particular connection.
5. APPLICATION 5.1 The Sound Frequency In recording studios as well as stage or radio plays, the EQU MKII 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 you can obtain nice results in terms of sound characterization. The tables on the following pages will give you an idea of specific frequencies and their acoustic significance.
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. Allow you to modify the sound of the instrument if put EQU MKII Series Equalizer in line with a musical instrument.
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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.
ALTO CHINA LIMITED 8/F,20 Kai Cheung Rd, Kowloon Bay, Kowloon, Hong Kong http://www.altoproaudio.com 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 NF 01783 -1.
