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Crown Audio MA-24X6, MA-36X12 operation manual This page intentionally left blank

Models: MA-36X12 MA-24X6

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Macro-Tech MA-24X6 & 36X12 Power Amplifiers

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Operation Manual

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Crown Audio MA-36X12 operation manual This page intentionally left blank, Macro-Tech MA-24X6 & 36X12 Power Amplifiers

Contents

Macro-Tech Series MA-24X6Some models may be exported under the name Amcron MA-36X12WATCH FOR THESE SYMBOLS Important Safety InstructionsMacro-Tech MA-24X6 & 36X12 Power Amplifiers pageCrown International, Inc Safety Standardpage TCF Technical Certificate No P4300CRI1.IWS5 Troubleshooting Table of Contents2 Setup 7 Specifications1 Welcome 1.1 Features1.2 How to Use This Manual Macro-Tech MA-24X6 & 36X12 Power Amplifiers2.1 Unpack Your Amplifier 2 Setup2.2 Install Your Amplifier Macro-Tech MA-24X6 & 36X12 Power AmplifiersBalanced Line 2.4 Choose Input Wireand Connectors 2 Setup2 Setup 2.5 Choose Output Wire and Con- nectorsCAUTION Never use shielded cable for output wiring Macro-Tech MA-24X6 & 36X12 Power AmplifiersMacro-Tech MA-24X6 & 36X12 Power Amplifiers 2.6 Wire Your System2 Setup Figure 2.6 System Wiring a Macro-Tech 36x12 is shown2 Setup 2.8 Startup Procedure2.7 Connect to AC Mains Macro-Tech MA-24X6 & 36X12 Power AmplifiersMacro-Tech MA-24X6 & 36X12 Power Amplifiers 3.1 Precautions3 Operation pageD. ODEP Indicator 3.2 Front Panel Controls and Indicators A. Dust FilterC. Signal/IOC Indicator E. Enable IndicatorInput Sensitivity Switch G. Power CordH. Reset Switches K. Ground Lift Switch4.1.1 Output Device Emulation Protection ODEP 4 Advanced Features and Options4.1 Protection Systems 4.1.2 IOC Input Output Compara tor4.2 Circuit Designs 4.2.1 Grounded Bridge 4.1.4 Transformer Thermal Protection4.1.5 Circuit Breakers 4 Advanced Features and Options4.3 Options 4.3.1 PIP Modules 4.3.3 Input Sensitivity Switch4.3.4 Input Ground Lift Switch 4.3.2 IQ-PIP-USP2 AdapterMacro-Tech MA-24X6 & 36X12 Power Amplifiers 5 Troubleshooting5.1 Indicators Figure 5.1IndicatorsODEP and Signal/IOC Indicator States 5 TroubleshootingMacro-Tech MA-24X6 & 36X12 Power Amplifiers pagepage 6 Theory of OperationMacro-Tech MA-24X6 & 36X12 Power Amplifiers 24 volts. Monolithic regulators U1-2 provide a regulated ±15 voltsFigure 6.1 Circuit Block Diagram Channel ONLY ONE CHANNEL SHOWNMacro-Tech MA-24X6 & 36X12 Power Amplifiers 6 Theory of OperationPower in watts per channel,1 kHz, 0.1% THD 7 SpecificationsMinimum Guaranteed Power Phase ResponseWeight Power Draw at IdleDimensions Performance continuedTypical Phase Response 7 SpecificationsMacro-Tech MA-24X6 & 36X12 Power Amplifiers page8 AC Power Draw and Thermal Dissipation Macro-Tech MA-24X6 & 36X12 Power Amplifierspage page 8 AC Power Draw and Thermal DissipationMacro-Tech MA-24X6 & 36X12 Power Amplifiers Figure 8.1 Macro-Tech9.2 US and Canada Service 9 Service9.1 Worldwide Service 9.2.1 Service at a US or Canada Ser- vice CenterITEMS EXCLUDED FROM THIS CROWN WARRANTY 10 WarrantySUMMARY OF WARRANTY HOW TO OBTAIN WARRANTY SERVICE10 Warranty ITEMS EXCLUDED FROM THIS CROWN- WARRANTYWORLDWIDE EXCEPT USA & CANADA Macro-Tech MA-24X6 & 36X12 Power AmplifiersPhone 1-800-342-6939 or 1-574-294-8200 Fax Crown Factory Service InformationNATURE OF PROBLEM Macro-Tech MA-24X6 & 36X12 Power AmplifiersThis page intentionally left blank Macro-Tech MA-24X6 & 36X12 Power Amplifierspage Macro-Tech MA-24X6 & 36X12 Power Amplifiers This page intentionally left blankpage Macro-Tech MA-24X6 & 36X12 Power Amplifiers page