Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER Never connect two power supplies together

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The following steps describe how to connect an Evolution Two preamplifier to your system:

1.Connect each power supply chassis and preamplifier chassis with the 12-pin DC cable provided, using the DC power connectors (47) on the back panels (1-2).

IMPORTANT

Never connect two power supplies together.

2.In order to operate the Evolution Two preamplifier in linked mode, connect the preamplifier channels together with the supplied RJ-45 control cable. In linked mode, functions including power, volume, balance, phase, record, mute, and input selections are instantaneously transmitted between linked preamplifier channels.

When a system with linked Evolution Two preamplifiers is powered on, left/right orientation is established immediately, with no user intervention. For more information on linked preamplifiers, see Appendix: CAN Link and Multiple Evolution Two Preamplifiers, on page 51.

3.Neatly arrange and organize wiring to and from the Evolution Two preamplifier and all components. Separate AC wires from audio cables to prevent hum or other unwanted noise from being introduced into the system.

4.Connect the outputs of your source equipment to the appropriate CAST (34), balanced (30), single-ended (31), or tape inputs (32, 33) on the Evolution Two.

5.Connect the appropriate main outputs (35-41) on the Evolution Two to your amplifier.

6.On each preamplifier channel, connect the supplied AC power cord to the IEC power cord receptacle (48).

7.On each preamplifier channel, plug the AC power cord into AC power. The front panel display (15) scrolls through EVOLUTION 2 SOFTWARE VERSION, and the red stand-by LEDs illuminate (4), indicating that the Evolution Two preamplifier is in stand-by mode. The scrolling stops when the Evolution Two is ready to be powered on.

Note

Use only the power cord provided with the preamplifier channel to make the connec- tion to AC power. Operation with a power cord other than the one supplied by Krell could induce noise, limit current, or otherwise impair the ability of the preamplifier chan- nel to perform optimally.

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Contents Evolution Page Contents List of Illustrations Letter from Dan D’Agostino Letter from Dan D’Agostino Krell Legacy About KrellCast Basics Voltage Signal Transmission Traditional Audio SystemHow Cast and Krell Current Mode Interact Revolutionary Krell Cast TechnologyEvolution Cast Cast Cable ConstructionBest Musical Performance Ensuring Maximum Performance Zero Feedback Balanced Current Mode DesignCore Technologies Separate Power Supply Fully Balanced Discrete Volume ControlAdvanced Microprocessor Control Custom Software Definition of Terms ConfigurationsInputs and Outputs Technology Krell Current ModePreamplifier OperationTo Remove the Preamplifier Channel from the Shipping Carton Unpacking and PlacementOpening the Evolution Two Shipping Carton Left/Right Channel OrientationAC Power Guidelines PlacementRepeat Steps 1-5 for the remaining preamplifier channels Quick Start Connecting the Evolution Two to Your SystemOperating the Evolution Two Linked Mode 11 12 13 Anatomy of an Evolution TwoEvolution Two Remote Control Remote Functions on the Front Panel PowerFront Panel Description ChassisDisplay Preamplifier FunctionsEnter Button or Key Level ControlNavigate/Customize Menu Button or KeyBattery Installation and Removal Remote Control DescriptionAmplifier Functions Compact Disc FunctionsIEC Power Cord Receptacle 35, 36 Main Bus Outputs Back Panel DescriptionInputs Outputs 43 RS-232 Remote Connections on the Back Panel 37, 38 Record Bus Outputs 42 RC-5Link Control Phono Stage ConnectorConnection Steps Connecting the Evolution Two to Your SystemXLR Pin Configuration Input and Output ConnectionsNever connect two power supplies together To Connect Multiple Evolution Two Preamplifiers via can Link Connections Using can LinkEvolution Two Operation On/Off and Stand-by Operation Linked ModeTo Turn Off Your System Play and RecordOperation Using can Link Navigation Conventions Customizing the Evolution TwoEnter the menu, then Menu FunctionsAC Mains BacklightChannel Assign BalanceUse to make a left channel respond as a right channel Use to make a right channel respond as a left channel CloneDisplay Front panel display is always on InfoFront panel display times out after 5 seconds Input Name Input Level TrimTo select input names for other inputs, repeat Steps 3 Input Trigger Input PhasePhase of the selected input is unaffected Phase of the selected input is inverted 180 degreesIR Out Control Evolution Two responds to 12 V input trigger commandsLink Control can Link Output Trigger MuteOutput of the Evolution Two is completely silenced RC-5 Control Recall Recalls the factory settingsRS-232 Control Software Clone SaveBegins the software clone process Tape InputInitiates the software clone Theater Mode +12 dB. The options are Enter the menu, then Volume DisplayQuestions and Answers Troubleshooting System Noise Connection of multiple preamplifier channels Appendix can Link and Multiple Evolution Two PreamplifiersAppendix can Link and Multiple Evolution Two Preamplifiers Warranty Warranty AM to 500 PM EST Return Authorization ProcedureTo contact the Krell Service Department Service@krellonline.comControl outputs Specifications