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.
EQU131-MKII Front Panel EQU215-MKII Front Panel EQU215TWIN-MKII Front Panel 6 Dual 15 Band Graphic Equalizer Channel One Channel Two INPUT +12 +6 +12 0 +12 +6 SIG CLIP SIG CLIP 40Hz R LTO INPUT OUTPUT +12 40Hz 16KHz 0dB 0 -12 - 6 40 63 100 160 250 400 630 1 1K 1.6K 2.5K 4K 6.3K 10K 16K -12 INPUT LEVEL 6 12 RANGE 2 HI-PASS LOW-PASS -12 - 6 ON EQ 25 40 63 100 160 250 400 630 1 4 16KHz 0dB HI-PASS LOW-PASS 25 OUTPUT SIG CLIP SIG CLIP 1K 1.6K 2.
31 Band Graphic Equalizer OUTPUT +12 +6 +12 EQU131VU R 0 LTO 0dB INPUT SIG 6 -12 - 6 20 20 25 25 31.5 31.5 40 40 50 50 63 63 80 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 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.
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 - Insert Points Connection Insert Leads 1/4" TRS insert Send SLEEVE TIP Return 1 3 2 2 3 Ring 1 TIP RING SLEEVE Tip Sleeve TIP RING SLEEVE 4.
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.
6.
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.
SEKAKU ELECTRON INDUSTRY (H.K.) CO. LTD. No.1, Lane 17, Sec. 2, Han Shi West Road, Taichung, 401 TAIWAN http://www.altoproaudio.com Tel:886-4-22313737 email: alto@altoproaudio.com Fax:886-4-22346757 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 c 2004 Sekaku Electron NF 01783 -1.