MACRO 830/1400/2400 User's Manual PROFESSIONAL HIGH POWER STEREO AMPLIFIER R LTO www.altoproaudio.com Version 2.
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 ▲LTO MACRO 830/1400/2400 Professional High Power Stereo Amplifier 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 obsession! 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 CONTENTS 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 MACRO 830/1400/2400 Professional Stereo Amplifier . With the MACRO 830/1400/2400 you have acquired an extremely musical and flexible High Power Amplifier which is based on many years of experience and findings in amplifier technology and is used through the world in the renowned studios.
4. Level controls for CHANNEL A, B These level Controls are used to adjust the output signal level, you'd better adjust them properly to avoid any distortion. 5. Protection LED This red LED indicator lights up when the thermal-protection system is working, no signal is output during this protection period, and this means any overheating occurs inside the unit (the critical temperature is 80℃), you must take actions to avoid this overheating, e.g.: speed up the air circulation, decrease the signal level.
speaker systems by over loading or overheating. This LF30Hz Filter is used to prevent this happening, and add an appropriate low-pass filter in the input circuit. 13. Fan This fan releases the heating from the unit by accelerating the air circulation (air flow from front to back),and its speed is continuously variable. 4. INSTALLATION & CONNECTION 4.1 Mains Connection Do not insert the power cord into this unit until voltage has been correctly set.
TRS phone jack to easily interface with most professional audio devices. Follow the configuration examples below for your particular connection.
Input wiring tips BALANCED UNBALANCED GND 1 SHIELD 1 3 3 2 2 FROM SOURCE INPUT FROM SOURCE INPUT + + SHIELD SHIELD INPUT CONNECTION CH-B (+) SRT 2 LINE CHANNEL B 1 3 BREAKER R( ) ( ) 1 WARNING T(+) (GND) 2 S(GND) 3 OFF ON LF 30HZ FILTER BRIDGED MONO 1.15V/20KΩ BALANCED INPUT BRIDGED 2 CHANNEL A CHANNEL B STEREO LINE CHANNEL A TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
Input wiring tips BALANCED UNBALANCED GND 1 SHIELD 1 3 3 2 2 FROM SOURCE INPUT + + SHIELD SHIELD INPUT CONNECTION CH-B (+) SRT 2 LINE NO USING FROM SOURCE INPUT 1 3 BREAKER R( ) ( ) 1 WARNING T(+) (GND) 2 S(GND) 3 OFF ON LF 30HZ FILTER BRIDGED MONO 1.15V/20KΩ BALANCED INPUT BRIDGED 2 CHANNEL A CHANNEL B STEREO LINE CHANNEL A TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
6.2 Caution for Speaker Connection The output capacity of out MACRO 830/1400/2400 Professional Stereo Amplifier is very high, be sure to use a speaker system that has sufficient input capacity. If the input capacity of your speaker system is lower than the rated output of the MACRO 830/1400/2400 Professional Stereo Amplifier, you can protect your speakers by connecting a fuse serially between the speaker and the amplifier as shown below.
11 AC POWER 120V/220V/230V /240V 50/60Hz (OPTION) LINK INPUT CH-B 1.15V RMS +4dB 15Kohm BALANCED LINK INPUT CH-A POWER SWITCH :SPEAKON CONNECTOR :1/4" PHONE JACK :XLR CONNECTOR NOTICE E.B SUB WOOFER (OPTION) E.
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 00967-2.
