Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER manual Theater Mode

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Theater Mode

This function enables you to select theater mode volume for a particular input. Use this function when connecting the output of a preamp/processor to the Evolution Two for home theater applications. Configuring an input for theater mode sets that input for unity gain and suspends the level control of the Evolution Two. Volume adjustments are then made through the preamp/processor connect- ed to the input configured for theater mode on the Evolution Two. The options are:

ON, OFF.

Enter the menu, then:

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

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 input:

B-1.

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

B-1, B-2, B-3, S-1, S-2, S-3, S-4, C-1, C-2, C-3, or TAPE.

4.Press the enter button or key. The front panel display shows the default mode:

OFF.

5.Use the level control knob or the up or down keys to select ON or OFF.

6.Press ENTER to confirm the selection and return to the selected input.

ON

The selected input is set to THEATER and the volume control for the theater input is disengaged on the Evolution Two.

OFF

The selected input is configured normally and the volume control for the normal input is engaged on the Evolution Two.

Note

Only one input on the Evolution Two can be in theater mode at a time. When theater mode is set for an input, theater mode is cleared automatically from other inputs.

The Evolution Two selects the theater input automatically upon power on, if the input trig- ger is configured for THEATER. See Input Trigger, on pages 39-40.

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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 TechnologyCast Cable Construction Evolution CastBest Musical Performance Zero Feedback Balanced Current Mode Design Ensuring Maximum PerformanceCore Technologies Separate Power Supply Fully Balanced Discrete Volume ControlAdvanced Microprocessor Control Custom Software Configurations Definition of TermsInputs 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 OrientationPlacement AC Power GuidelinesRepeat 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 Outputs43 RS-232 Remote Connections on the Back Panel37, 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 BacklightBalance Channel AssignUse to make a left channel respond as a right channel Use to make a right channel respond as a left channel CloneDisplay Info Front panel display is always onFront panel display times out after 5 seconds Input Level Trim Input NameTo 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 Mute Output TriggerOutput of the Evolution Two is completely silenced RC-5 Control Recalls the factory settings RecallRS-232 Control Software Clone SaveTape Input Begins the software clone processInitiates 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

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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