Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER manual Menu Functions, AC Mains, Backlight

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OFF, LOW (25%), MED (50%), HIGH (100%).
OFF, ON.

Menu Functions

AC Mains

This function enables you to operate the Evolution Two from a switched AC outlet. If AC Mains is set to ON, the preamplifier turns on immediately, by-passing stand- by. Thereafter, you may switch the preamplifier to and from stand-by, using the power button or pwr key (3). The options are:

Enter the menu, then:

1.Use the level control knob on the preamplifier chassis front panel or up and down keys (16) on the remote control to select: AC MAINS.

2.Press the enter button on the preamplifier chassis front panel or the enter key (18) on the remote control. The front panel display (15) shows the default mode: OFF.

3.Use the level control knob or the up and down keys to select the desired option: OFF or ON.

4.Press the enter button or key to confirm the selection. The front panel display

reads: AC MAINS.

OFF

The Evolution Two switches to stand-by mode, when it detects AC power.

ON

The Evolution Two turns on immediately, bypassing the stand-by mode, when it detects AC power.

Backlight

This function enables you to control the blue power indicator brightness. ￿The options are:

Enter the menu, then:

1.Use the level control knob on the preamplifier chassis front panel or up and down keys (16) on the remote control to select: BACKLIGHT.

2.Press the enter button on the preamplifier chassis front panel or the enter key (18) on the remote control. The front panel display (15) reads: BRIGHTNESS.

3.Press the enter button or the enter key again. The front panel display shows the default mode: HIGH.

4.Use the level control knob or the up and down keys to select the desired

brightness: OFF, LOW, MED, HIGH.

5.Press the enter button or key to confirm the selection. The front panel display

reads: BRIGHTNESS.

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Contents Evolution Page Contents List of Illustrations Letter from Dan D’Agostino Letter from Dan D’Agostino Krell Legacy About KrellHow Cast and Krell Current Mode Interact Voltage Signal Transmission Traditional Audio SystemRevolutionary Krell Cast Technology Cast BasicsEvolution 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 Preamplifier Krell Current ModeOperation TechnologyOpening the Evolution Two Shipping Carton Unpacking and PlacementLeft/Right Channel Orientation To Remove the Preamplifier Channel from the Shipping CartonAC 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 Front Panel Description PowerChassis Remote Functions on the Front PanelDisplay Preamplifier FunctionsNavigate/Customize Level ControlMenu Button or Key Enter Button or KeyBattery Installation and Removal Remote Control DescriptionAmplifier Functions Compact Disc FunctionsIEC Power Cord Receptacle Inputs Back Panel DescriptionOutputs 35, 36 Main Bus Outputs37, 38 Record Bus Outputs Remote Connections on the Back Panel42 RC-5 43 RS-232Link Control Phono Stage ConnectorXLR Pin Configuration Connecting the Evolution Two to Your SystemInput and Output Connections Connection StepsNever 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 TwoAC Mains Menu FunctionsBacklight Enter the menu, thenChannel 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 Phase of the selected input is unaffected Input PhasePhase of the selected input is inverted 180 degrees Input TriggerIR 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 To contact the Krell Service Department Return Authorization ProcedureService@krellonline.com AM to 500 PM ESTControl outputs Specifications

EVOLUTION TWO MONAURAL PREAMPLIFIER specifications

Krell Industries has long been a name synonymous with high-fidelity audio equipment, and their EVOLUTION TWO MONAURAL PREAMPLIFIER is a testament to this legacy. This premium preamp is designed to cater to audiophiles, delivering unparalleled sound quality and meticulous attention to detail.

At the heart of the EVOLUTION TWO lies Krell's commitment to superior audio performance. The preamplifier employs a fully balanced, differential signal path that minimizes noise and distortion, ensuring that the audio output is pure and true to the source. This architecture not only enhances sound quality but also integrates seamlessly with other high-end audio components in any setup.

One of the standout features of the EVOLUTION TWO is its advanced power supply design. Krell employs a toroidal transformer coupled with high-energy storage capacitors to provide stable, clean power. This allows for improved dynamics and transient response, helping to reproduce the complex nuances of music in a way that engages the listener. The preamplifier's power supply is designed to operate with extreme efficiency, ensuring consistent performance even during the most demanding listening sessions.

Additionally, the EVOLUTION TWO comes equipped with Krell's proprietary CAST (Current Audio Signal Transmission) technology. This innovative feature allows for a direct, impedance-matched connection between components, significantly reducing signal degradation over long cable runs. Audiophiles will appreciate the clarity and fidelity produced by CAST, revealing subtle textures and details in their favorite recordings.

The preamplifier also includes a range of inputs and outputs, catering to various audio sources and systems. Users can connect multiple devices, including digital sources, with ease, thanks to the EVOLUTION TWO's advanced input switching capabilities. The unit supports balanced XLR connections as well as unbalanced RCA outputs, providing flexibility for users with different equipment configurations.

Moreover, the EVOLUTION TWO MONAURAL PREAMPLIFIER boasts a stunning aesthetic, showcasing Krell's hallmark design philosophy. With its sleek chassis and elegant finish, the preamp not only sounds good but looks great in any audio setup.

In summary, the Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER is a high-performance audio component that encapsulates cutting-edge technology and exceptional craftsmanship. With its balanced signal path, innovative power supply design, CAST technology, and versatile connectivity options, it is a remarkable addition to any serious audiophile's system, promising a listening experience that truly transcends the ordinary.
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