User's Manual AMX-120 12-CHANNEL MIXING CONSOLE R LTO www.altoproaudio.com Version 1.
Fuse SAFETY RELATED SYMBOLS To prevent fire and damage to the product, use only 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. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure.
PREFACE Dear Customer: Thank you for choosing the TEAM's endeavours. For the LTO AMX-120 12-Channel Mixing Console, which is the result of our LTO AUDIO LTO AUDIO TEAM, music and audio are more than a profession, it is a passion and an obsession! We have, in fact, been designing professional audio products for a number of years in cooperation with many of the world's major brands. The LTO line represents unparalleled analogue and digital products made by musicians, for musicians.
TABLE OF CONTENTS 1.INTRODUCTION...................................................................................................................................................4 2.FEATURES...........................................................................................................................................................5 3.READY TO START?...............................................................................................................................................6 4.
1. INTRODUCTION Thank you very much for expressing your confidence in LTO products by purchasing LTO AMX-120 mixing console. The AMX-120 is a professional compact mixer. You will get the smooth, accurate more natural and open sound from this apparatus, and it is really ideal for small gigs, recording and fixed PA installations.
2. FEATURES The AMX-120 12-Channel Mixing Console is designed for professional application.
3. READY TO START? 3.1 Please check the AC voltage available in your country before connecting your AMX-120 to the AC socket. 3.2 Be sure that the main power switch is turned off before connecting the mixer to the AC socket. Also, you should make sure that all Input and output controls are turned down. This will avoid damages to your speakers and avoid excessive noise. 3.3 Before turning on the AMX-120 you shall connect it to a power amplifier and turn-on the mixer BEFORE the power amplifier.
4. CONTROL ELEMENTS MIC 1 MIC 2 J.T. 2 AM J.T.
1 4.1 MONO MIC/LINE Channels MIC 1 These are channel 1 through channel 2. You can connect balanced, low impedance microphones to the XLR socket. On the 1/4" jack you can connect either a microphone or a line level instrument. You shall never connect an unbalanced microphone to the XLR socket if you do not want to damage both the microphone and the mixer. 48 Volt phantom power J.T. 2 1 3 1 BAL OR UNBAL 2 It is available only to the XLR Mic sockets.
LOW 7 This is the Bass control. Boost male voice or kickdrum and bass guitar. Your system will sound much bigger than what it is. The gain range goes from -15dB to +15dB and the center frequency is 80 Hz. 8 -. AUX SEND Control This control is used to adjust the level of the signal sent to AUX buses, and their adjustable range goes from +15dB.
14 -. +4dBu/-10dBV Switch Your AMX-120 provides the gain select switch, which is used to adjust the sensitivity of line input on stereo channels. Line level are considered to be between 1V and 2V RMS (+2dBu ~ +8dBu) in professional equipment, peak levels may extend to over 10V RMS (+22dBu). The accepted standard for sound reinforcement equipment is +4dBu.
-. PHONES/CTRL ROOM Control 23 This control sets the amount of signal sent to the control room and headphone. 4.4 CTRL ROOM OUTPUT Connectors 24 These 1/4" sockets are used to send the control room signal to the studio monitor speakers or a second set of PA. CTRL ROOM OUTPUT L R 24 2-TRACK IN/OUT 4.5 2TK IN/OUT Connectors L 25 -. TAPE IN 25 R Use the tape input if you wish to listen to your mix from a taper recorder or DAT.
4.9 REAR PANEL Description ON CAUTION MODEL RISK OF ELECTRIC SHOCK DO NOT OPEN 18VAC~ OFF POWER WARNING: SHOCK HAZARD - DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR SERIAL PHANTOM RATED POWER CONSUMPTION: 11W 29 2 30 29 - POWER ON/OFF Switch This switch is used to turn the main power ON and OFF. - PHANTOM ON/OFF Switch 2 This switch will apply +48 Volt Phantom Power only to the 2 XLR microphone inputs. Never connect microphones when the phantom power is on already.
5. INSTALLATION AND CONNECTION Ok, you have got to this point you are now in the position to successfully operate your AMX-120. However, we advise you to read carefully the following section to be the real master of your own mix. Not paying attention enough to the Input signal level, to the routing of the signal and the assignment of the signal will result in unwanted distortion, a corrupted signal or no sound at all.
5.1 Audio Connection Both XLR and 1/4 " TRS connectors are available on the unit. In this way you can interface the unit in several different ways without experiencing any noise or signal loss. You can use the unit with single instruments using The mixer's main insert or on "in-line" between a mixing console's output and a power amplifier.
6. FOR THE EXPERTS WHO WANT TO KNOW MORE As we have told you previously in this manual, the AUX SEND control both on mono and on stereo channels is factory wired as POST-FADER. If you have some skill in electronic components soldering you can modify this setting and have all your AUX SENDS configured as PRE-FADER.
16 A B C D 1 2 3 1 T R RN TN 5e S LEFT(MONO) 3c 4d 2b 1a RIGHT T R RN TN 5e S 3c 4d 2b 1a 2 + - + - STEREO INPUT CHANNELS (3-10) MIC GAIN:0~60dB LINE IN TRIM:+15dB~-45dB LINE IN MIC IN PHANTOM POWER +48V MONO INPUT CHANNELS ( 1-2 ) GAIN MID HI 3 SG/OL 80 2.
8. TECHNICAL SPECIFICATION Mono input channels Microphone input Frequency response Distortion (THD & N) Gain range SNR (Signal to Noise Ratio) Line input Frequency response Distortion (THD & N) Sensitivity range electronically balanced, discrete input configuration 10Hz to 55kHz, + 3dB 0.005% at + 4dBu, 1kHz 0dB to 44dB (MIC) Line input Frequency response Distortion (THD & N) Balanced 10Hz to 55kHz, + 3dB 0.005% at +4dBu, 1kHz Microphone input All other inputs Tape out All other output 1.
9. 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.
SEIKAKU TECHNICAL GROUP LIMITED No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, 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 2005 SEIKAKU GROUP NF 01656 -1.
