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Nilfisk-ALTO MACRO 1400 manual

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Table of contents for the manual

  • Page 1

    PROFESSIONAL HIGH POWER STEREO AMPLIFIER User's Manual LTO R www .altoproaudio.com V ersion 1.0 April 2002 English MA CRO 830/1400/2400[...]

  • Page 2

    1 SAFETY RELA TED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Grounding Make sure to connect the protective grounding to prevent any electric shock before turning ON the apparatus. Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal. This symbol, wherever it ap[...]

  • Page 3

    Preface Dear Customer , For our L TO 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. The line presents unparalleled analogue and digital product[...]

  • Page 4

    T ABLE OF CONTENTS 1. INTRODUCTION .............................................................................................................4 2. FEA TURE LIST ...............................................................................................................4 3. CONTROL ELEMENTS ......................................................[...]

  • Page 5

    1. INTRODUCTION 2. FEA TURE LIST : Sophisticated protecting circuits protect the machine from improper tampering Input matching allows collection with any preamplifier Excellent frequency echo and sound quality High fidelity and low noise Balanced XLR and 1/4" TRS Input Connectors Output Connectors are speak-on jacks, and the binding post term[...]

  • Page 6

    6. Breaker This breaker is used to protect the unit in replacement of fuse. Press it to reset . 7. AC Inlet This connector is meant for the connection of the supplied main cord. Do not insert the power cord into this unit until voltage has been correctly set .Do not plug the power cord into the mains until the voltage has been correctly set . 8. Ou[...]

  • Page 7

    a. Wiring Configuration Either the 1/4" TRS (T ip-Ring-Sleeve) phone jack or the XLR servo connector can be wired in balanced and unbalanced modes, which will be determined by the actual application status, Please wire your systems as For 1/4" TRS jack 1/4"TRS jack Unbalanced Input 1/4"TRS jack Balanced Input For XLR connector X[...]

  • Page 8

    Tip Ring Sleeve Tip Ring Sleeve Tip Ring Sleeve Tip Ring Sleeve Tip Sleeve Tip Sleeve Tip Sleeve Tip Ring Sleeve 1 2 3 1 2 3 1 2 3 Tip Ring Sleeve 1 2 3 Centre Centre Centre Screen Screen Screen Tip Sleeve 1 2 3 1 2 3 Tip Ring Sleeve 1 2 3 1 2 3 TIP RING SLEEVE TIP RING SLEEVE TIP RING SLEEVE TIP SLEEVE TIP SLEEVE TIP RING SLEEVE TIP SLEEVE TIP RIN[...]

  • Page 9

    5.2 Operate MACRO 830/1400/2400 in Parallel (Mono) Mode In this mode, the Channel A input signal will be output from the output connectors of both Channels. The Channel B input jack is not used, the Channel A and B volumes can be adjusted independently . 8 P ARALLEL (MONO) STEREO CHANNEL A NO USING Channel B + Channel A + BRIDGED 2 1 3 NEW TIDE 2 1[...]

  • Page 10

    5.3 Operate MACRO 830/1400/2400 in Bridged Mode In this mode, the Channel A input signal will be output from the Bridge output connectors. In this case, use the Channel A volume control to adjust the volume, keep the volume control of Channel B turned completely down (counterclockwise). Bridged Mode is intended for driving loads with a total impeda[...]

  • Page 11

    7. TECHNICAL SPECIFICA TIONS 7.1 Specifications ELECTRICAL SPECIFICATIONS INPUT SENSITIVITY INPUT IMPEDANCE FREQUENCY RESPONSE (at 10dB below rated output power) VOL T AGE GAIN DISTORTION(SMPTE-1M) S/N ratio Full short circuit, open circuit, thermal, ultrasonic, and RF protection stable into reactive or mismatched loads, turn ON/OFF , muting, tried[...]

  • Page 12

    7.2 Block Diagram INPUT LINK E.R 30Hz-9dB LA DIF PWR AMP OUTPUT CH-A CH-A 1.15V RMS +4dB 15Kohm BALANCED SUB WOOFER (OPTION) +/- MODE INPUT LINK E.B LA DIF PWR AMP OUTPUT CH-B CH-B AUTORAMP TURN-ON CIRCUIT SHOCK DC OFFSET DC SERVO OVER TEMP SHORT CIRCUIT CURRENT LIMITER TURN-ON/TURN-OFF TRANSIENTS BRIDGED PA R AL L E L MONO ACTIVE CLIP CH-A CH-B AM[...]

  • Page 13

    8. W ARRANTY 12 1. W ARRANTY REGISTRA TION CARD T o obtain Warranty Service, the buyer should first fill out and return the enclosed W arranty Registration Card within 10 days of the Purchase Date. All the information presented in this W arranty Registration Card gives the manufacturer a better under- standing of the sales status, so as to purport [...]