Evolution Technologies 222 manual Revolutionary Krell Cast Technology, Cast Basics

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Revolutionary Krell CAST Technology

Current Audio Signal Transmission, termed CAST, is a revolutionary method of connecting analog audio components for unparalleled sonic performance. Innovative engineering combines the new Krell CAST circuitry with existing Krell Current Mode technology to create entire CAST systems that reproduce music with incredible range, tonality, and precision.

The Voltage Signal Transmission

and the Traditional Audio System

Traditionally, signal is transmitted in the voltage domain between two components. In an audio system, each component is a discrete entity with unique characteris- tics that act upon the musical signal independently. Each component is unaware of the other components in the system. The cables that connect the components also have their own electrical characteristics, which affect the sonic presentation of the entire system. CAST transmission unifies individual components and inter- connects into an electrically-linked whole. The original signal remains unaltered from source to speaker.

CAST Basics

Here is how a CAST audio system works. Internally, each CAST source transfers, or amplifies, current using Krell Current Mode circuitry. This current signal is then output using CAST circuitry. When the signal is received by a CAST input, Krell Current Mode circuitry again takes over until the signal reaches the loudspeaker. By maintaining the musical signal in the current domain from beginning to end, an entire CAST system behaves as if it is one component. With CAST, circuit board properties and signal transmission aberrations between components are eliminat- ed. Cable impedances and their effects on the transmitted signal are non-existent.

How CAST and Krell Current Mode Interact

While CAST is a new method of transferring the musical signal between compo- nents, its origin stems from Krell Current Mode, the technology developed to transfer the musical signal within a component. CAST combined with Krell Current Mode takes circuitry signal transmission to the next evolutionary level. In essence,

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Contents Evolution Important Safety Instructions Contents List of Illustrations Letter from Dan D’Agostino Features Evolution 222 Features and TechnologyCast Basics Voltage Signal Transmission Traditional Audio SystemHow Cast and Krell Current Mode Interact Revolutionary Krell Cast TechnologyEvolution Cast Cast Cable ConstructionBest Musical Performance Inputs and Outputs Definition of TermsOperation Technology Krell Current ModePage AC Power Guidelines PlacementQuick Start Connecting the Evolution 222 to Your SystemOperating the Evolution Selectors Anatomy of the EvolutionRemote Functions on the Front Panel PowerFront Panel Description ChassisNavigate/Customize DisplayPreamplifier Functions Level Control Knob or Level Keys Level ControlEvolution 222 Remote Control Balance Functions Remote Control DescriptionBattery Installation and Removal Amplifier FunctionsCompact Disc and DVD Functions Evolution 222 Back Panel Outputs ConfigurationsBack Panel Description Inputs24 12 VDC In/Out 12 V Trigger Remote Connections on the Back Panel22 RS-232 23 RC-5Phono Power Port Phono Stage ConnectorIEC Power Cord Receptacle XLR Pin Configuration Connecting the Evolution 222 to Your SystemInput and Output Connections Connection Steps On/Off and Stand-by Operation Evolution 222 OperationTo Turn Off The System Customizing the Evolution Volume Knob or Level KeysNavigation Conventions AC Mains Menu FunctionsBalance input trim Balance channelMenu Button or Key Enter or exit the menu DisplayInfo Input Name Input Level TrimInput Trigger Input PhaseIR Out Control Evolution 222 responds to 12 V input trigger commandsMute Link Control can LinkOutput Trigger Recall RC-5 ControlSave RS-232 ControlTheater Mode Volume Display Troubleshooting System Noise Warranty Page To contact the Krell Service Department Return Authorization ProcedureInputs SpecificationsConnair Road
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