User's Manual MISTRAL400 STEREO POWER AMPLIFIER R LTO www.altoproaudio.com Version 1.
SAFETY RELATED SYMBOLS Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Operating Conditions This apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on this apparatus. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water.
Preface Dear Customer: Thanks for choosing LTO MISTRAL400 Stereo Power Amplifier and thanks for choosing one of the results of AUDIO TEAM job and researches. LTO 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. FEATURES .... .........................................................................................................................................4 3. CONTROL ELEMENTS............................................................................................................................5 3.1 The Front Panel 3.2 The Rear Panel 4.
1. INTRODUCTION The LTO MISTRAL400 is a line of high power, low profile, professional Power Amplifiers with advanced features and great reliability. They deliver tremendous power in only one rack space, providing high level performance under the most demanding conditions. The amplifier frame contains all solid-state circuitry, using complementary silicon output devices. The amplifier contains two independent channels, with separate AC transformer secondaries.
3. CONTROL ELEMENTS 3.1 Front Panel 2 3 R LTO 1 5 4 5 1 Power Switch Turn the unit power on or off. 2 Clip LED When the signal distortion reaches or surpasses 0.5%, the LED lights up. This means the output level of signal source is too high and it is time to reduce input level until clip LED turning off. 3 Output Limiter LED While the unit is limiting the output signal, the LED lighting up. 4 Power LED This LED lights up when the unit is powered.
6 Fuse Holder / Voltage Selector This is a dual voltage unit. Before you attempt to connect and operate the unit, please make sure that your Local voltage matches the voltage on the fuse holder cover. Caution: The fuse protecting the AC supplies circuits of this unit. The fuse can only be changed by a qualified technician, in the event of a fault or changing the supply voltage. If the fuse continues to blow after replacing, discontinue use of this unit before repaired.
4. APPLICATION Total two optional modes: Please see following diagram for connecting the power amplifier into your audio system. 4.1 Stereo Mode In this mode, Channel 1 and Channel 2 operate independently ( just as traditional stereo amplifier). The signal input into channel 1 can be output from channel 1 only, similarly, the signal input into channel 2 can be output from channel 2 only.
4.2 Bridge Mode In this mode, the signal input into channel 1 will be output from the bridged end, on other hand, the output level control of channel 2 should be turn down to smallest (turn the volume control at counterclockwise). Only the volume control of channel 1 is used to control the volume of whole system.
5. TECHNICAL SPECIFICATIONS MODEL MISTRAL400 Output Power 20Hz 20KHz@0.1%THD, Stereo Mode 8 ohms per channel(EIAJ) 60W 4 ohms per channel(EIAJ) 100W Bridge Mono Mode 8 ohms, 1KHz, 0.1%THD 180W Distortion (SMPTE-IM) <0.05% Frequency Response 20Hz-20KHz+0.
6. 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 SEKAKU ELECTRON INDUSTRY (H.K.) CO., LTD. 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 NF02036-1.
