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Krell Industries 222 manual A Letter from Dan D’Agostino

Models: 222

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A Letter from Dan D’Agostino

A Letter from Dan D’Agostino

Dear Audio Enthusiast,

Thank you for your purchase of the Krell Evolution 222 preamplifier.

The preamplifier plays a vital role in audio playback by mediating the line-level out- put of a wide variety of source components in preparation for the amplifier’s input. At no other point in the reproduction process is music so vulnerable to change, as the signal level is small, and susceptible to noise and distortion.

Having always valued the role of the preamplifier in fine audio systems, I take pre- amplifier design very seriously. I realize that, no matter how impressive an amplifi- er’s performance; it can be no better than that of the preamplifier driving it.

My new Evolution 222 preamplifier employs balanced Krell Current Mode gain stages from input to output, and Current Audio Signal Transmission (CAST) receivers and transmitters. Utilizing these powerful technologies, the Evolution 222 conveys the complete range of timbre and dynamics that comprise the foundation musical performance. Typical of my latest preamplifier designs, the Evolution 222 preamplifier includes a thoughtful suite of menu options, and can be customized for the greatest ease of operation.

I hope that you enjoy your new Evolution 222 preamplifier.

Sincerely,

Daniel D’Agostino

Chief Executive Officer

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Krell Industries 222 manual A Letter from Dan D’Agostino

Contents

E V O L U T I O N EVOLUTIONS T E R E O P R E A M P L I F I E R OWNER’S REFERENCEGo to website IMPORTANT SAFETY INSTRUCTIONSContents Figure 1, page List of IllustrationsFigure 2, page Figure 3, pageA Letter from Dan D’Agostino Features Evolution 222 Features and TechnologyRevolutionary Krell CAST Technology The Voltage Signal Transmissionand the Traditional Audio System CAST BasicsThe Best Musical Performance CAST Cable ConstructionEvolution CAST Inputs and Outputs Definition of TermsOperation BalancedSECTION ONE Definition of Terms continued TechnologyKrell Current Mode continued AC Power Guidelines PlacementQuick Start Connecting the Evolution 222 to Your SystemSECTION THREE Quick Start Operating the EvolutionPower Anatomy of the EvolutionPhase Remote1Power Button or Key Power7Stand-by/PowerLED Front Panel DescriptionDisplay 13Phase Button and LED, or KeyNavigate/Customize Preamplifier Functions14Level Control Knob or Level Keys Level ControlPhase PowerNavigate CustomizeBattery Installation and Removal Remote Control DescriptionAmplifier Functions Balance FunctionsPlay Key Compact Disc and DVD FunctionsStop Key Track Forward and Back KeysPower ConfigurationsInputs OutputsBack Panel Description ConfigurationsInputs Outputs22RS-232 Remote Connections on the Back Panel23RC-5In 2412 VDC In/Out 12 V Trigger25Phono Power Port Phono Stage Connector26IEC Power Cord Receptacle PowerInput and Output Connections Connecting the Evolution 222 to Your SystemXLR Pin Configuration Connection Steps To Turn Off The System Evolution 222 OperationOn/Off and Stand-byOperation Customizing the Evolution 14 Volume Knob or Level KeysNavigation Conventions 5 Menu Button or KeyAC Mains Menu FunctionsBalance input trim Balance channelDisplay Info Input Name Input Level TrimInput Trigger Input PhaseIR Out Control Mute Link Control CAN LinkOutput Trigger Recall RC-5ControlSave RS-232ControlTheater Mode Volume Display SECTION EIGHT Troubleshooting System NoiseWarranty Page To contact the Krell Service Department Return Authorization ProcedureE-MAIL WEBSITESpecifications 45 CONNAIR ROAD ORANGE, CT 06477 - 3650 USA VTEL 203 - 298 - 4000 FAX E - MAIL sales@krellonline . com