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Crown Audio STUDIO AMPLIFIER Unpacking Instructions, The Unit Without The Factory Pack

Models: STUDIO AMPLIFIER

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Studio Reference I & II Professional Studio Amplifiers

Fig. 1.1 Studio Reference I Amplifier

Unpacking Instructions

Please unpack and inspect your new amplifier for any damage that may have occurred during transit. If damage is found, notify the transportation com- pany immediately. Only you, the consignee, may ini- tiate a claim for shipping damage. Crown will be happy to cooperate fully as needed. Save the ship- ping carton as evidence of damage for the shipper’s inspection.

Even if the unit arrived in perfect condition, as most do, save all packing materials so you will have them if you ever need to transport the unit. NEVER SHIP

THE UNIT WITHOUT THE FACTORY PACK.

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Crown Audio STUDIO AMPLIFIER owner manual Unpacking Instructions, The Unit Without The Factory Pack

Contents

Studio Reference PROFESSIONAL STUDIO AMPLIFIERSExported to select countries as Amcron NORTH AMERICA THREE YEAR FULL WARRANTYWORLDWIDE 3 YEARC A U T I O N WATCH FOR THESE SYMBOLSREQUIRE CLASS 1 OUTPUT WIRING A V I SCONTENTS ILLUSTRATIONS Unpacking Instructions THE UNIT WITHOUT THE FACTORY PACK1.1 Features 1 WelcomeD. Signal Presence Indicators B. ODEP IndicatorsC. IOC Indicators E. Enable IndicatorM. Output Connectors I. Reset SwitchJ. Power Cord N. Stereo / Mono Switch3 Installation 3.1 Mounting3.2 Cooling Fig. 3.5 Stereo Wiring 3.3 WiringSTEREO MODE PageBRIDGE-MONOMODE 3.3.1 Stereo Two-ChannelOperation3.3.2 Bridge-MonoOperation mode until the wiring is removed especially the PARALLEL-MONOMODEmeters, switches, etc. to the Bridge-Monooutput results in distortion and inefficient operationshielded 3.3.4 Input Connectioncable Twin-leadInput Wiring Tips Use Good Connectors 3.3.5 Output Connectionamplifiers share a common cable tray or jacket 3.4 AC Mains Power 3.3.6 Additional Load Protection4.1 Precautions 4.2 Indicators4 Operation 4.3 Protection Systems Fig. 4.2 Studio Reference Indicator StatesPage 4.3.1 ODEP 4.3.3 Transformer Thermal Protection4.3.2 Standby Mode 4.4 Controls 4.3.4 Circuit Breaker4.5 Filter Cleaning 5.2 Circuit Theory 5 Technical Information5.1 Overview 5.2.1 Stereo OperationINPUTS Fig. 5.1 Circuit Block DiagramPage OUTPUT5.2.2 Bridge-MonoOperation 5.2.3 Parallel-MonoOperationPerformance 6 SpecificationsPower ControlsInput/Output IndicatorsOutput Signal ProtectionMinimum Guaranteed Power Specifications Fig. 6.1 Studio Reference I Minimum Power MatrixPage Fig. 6.2 Studio Reference II Minimum Power Matrix PageMains Fig. 6.3 Studio Reference I Maximum Power Matrix Maximum Power SpecificationsStudio Reference I - Maximum Power Watts PagePage Studio Reference II - Maximum Power WattsFig. 6.4 Studio Reference II Maximum Power Matrix MainsFig. 6.7 Typical Output Impedance Fig. 6.5 Typical Frequency ResponseFig. 6.6 Typical Damping Factor PageFig. 6.8 Typical Phase Response Fig. 6.9 Typical Common Mode RejectionPage 0 -20 -40 dB -60 -80 -100 -120 Fig. 6.10 Typical CrosstalkPage 10 K7 AC Power Draw and Thermal Dissipation Studio ReferenceStudio Reference Thermal Dissipation at Various Duty CyclesPage 8 Accessories 8.1 P.I.P. ModulesEDCb ATN+ 9.2 North American Service 9 Service9.1 Worldwide Service Crown Audio DivisionCrown Factory Service Information NATURE OF PROBLEM