Related Manuals for Alto MC250.4
Summary of Contents for Alto MC250.4
- Page 1 User's Manual MC250.4 FOUR CHANNELS POWER AMPLIFIER www.altoproaudio.com Version 1.0 AUGUST 2005 English...
- Page 2 SAFETY RELATED SYMBOLS Fuse To prevent fire and damage to the product, use only the recommended fuse type as indicated in this CAUTION manual. Do not short-circuit the fuse holder. Before RISK OF ELECTRIC SHOCK DO NOT OPEN replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet.
- Page 3 Nothing else to add, but that we would like to thank all the people that made the MC250.4 four channels Power...
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Page 4: Table Of Contents
TABLE OF CONTENTS 1. INTRODUC ION ..............................4 2. FEATURES................................4 3. CONTROL ELEMENTS..........................4. 4. INSTALLATION..............................INSTALLATION...............................7 5. APPLICATION.................................8 CAUTION FOR APPLICATION..........................10 BLOCK DIAGRAM..............................1 1 TECHNICAL SPECIFICATIONS..........................1 2 WARRANTY................................13... -
Page 5: Features
This amplifier guarantees total reliability and a trouble-free use even in the most demanding conditions. We believe the MC250.4 not only look great, but provide a perfect performance, what you get is unprecedented performance at an incredibly attractive price. -
Page 6: Control Elements
(dB) (dB) (dB) Power Switch It switches on / off MC250.4 main power. Power LED This LED lights up when the amplifier is powered on Input Level Indicator Display There are three high accurate LED indicators, which shows the level of the input signal. When the respective channel's output signal distortion exceeds 0.5%, the red LED (clip) indicator lights up. -
Page 7: Stereo Mode
3.2 The Rear Panel INPUTS Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk CH1 MODE SWITCHES CH2 BREAKER BREAKER 1 2 3 4 5 6 7 8 9 10 CH3 MODE SWITCHES CH4 1 2 3 4 5 6 7 8 9 10 BRIDGE BRIDGE MONO... -
Page 8: Installation
The power supply will be restored with pushing this switch again. AC-Inlet This standard IEC receptacle is supplied to allow to connect your MC250.4 to mains via the supplied power cord. 4. Installation 4.1 Mains connection Do not insert the power cord into this unit until voltage has been correctly set. -
Page 9: Application
The MC250.4 professional power amplifier fits into one standard 19" rack unit of space. Be sure that there is enough air space around the unit for sufficient ventilation. If heat release is inadequate, this unit will retain heat inside, which may cause the protection, or even a fire. - Page 10 5.2 Operate MC250.4 Power Amplifier In Parallel Mode In this mode, the channel 1 input signal will be output from the output connectors of both channel 1 and channel 2. The channel 2 input jack is not used. The channel 1 and channel 2 volumes can be adjusted independently.
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Page 11: Caution For Application
The output capacity of MC 250.4 power 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 MC250.4 power amplifier, you can protect your speakers by connecting a fuse serially between the speaker and the amplifier as shown below. -
Page 12: Block Diagram
7. BLOCK DIAGRAM... -
Page 13: Technical Specifications
8. TECHNICAL SPECIFICATION Model MC250.4 Output Power 20Hz 20kHz @0.1%THD , stereo Mode 4x180W 8 ohms per channel (EIAJ) 4x250W 4 ohms per channel (EIAJ) Bridge Mono Mode 2 500W 8 ohms, 1kHz, 0.1% THD (EIAJ) <0.05% Distortion (SMPTE-IM) 20Hz- 20kHz 1dB, -3dB point: 10Hz- 60kHz Frequency Response >300@8 ohms... -
Page 14: Warranty
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. - Page 15 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 2005 SEIKAKU GROUP NF02244-1.0...
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