Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER manual IEC Power Cord Receptacle

Page 26

(SECTION FOUR: Anatomy of an Evolution Two continued)

Figure 3 Evolution Two Preamplifier Chassis and Power Supply Chassis Back Panels

1

30

34

 

42

 

43

45

 

 

 

 

 

 

 

 

EVOLUTION TWO

IN

IN

LINK

 

LINK

 

MAIN BUS

RECORD BUS

 

 

 

 

 

 

 

 

 

 

OUT OUT

IN

 

 

 

 

 

1

2

 

INPUTS

TAPE OUTPUTS

MAIN OUTPUTS

 

 

 

POWER

32

31

33 35

36

37

38

39

40

41

 

 

 

47

 

 

 

 

 

 

 

 

 

 

44

 

2

ANALOG SUPPLY FUSE

EVOLUTION TWO

50/60 Hz

 

 

 

 

 

 

 

 

KRELL INDUSTRIES, INC.

 

 

 

 

 

 

 

 

 

 

 

 

 

DIGITAL

45 CONNAIR ROAD

 

POWER

 

 

SUPPLY

ORANGE, CT 06477-3650

 

 

 

 

 

 

FUSE

USA

PHONO POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO USER SERVICEABLE PARTS INSIDE

MADE IN USA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

46

47

Inputs

30

Balanced Inputs: B-1, B-2, B-3

 

 

 

 

 

 

 

31

Single-ended Inputs: S-1, S-2, S-3, S-4

 

 

 

 

 

 

 

32

Balanced Tape Input: B-3

 

 

 

 

 

 

 

33

Single-ended Tape Input: S-4

 

 

 

 

 

 

 

34

CAST Inputs: C-1, C-2, C-3

 

 

 

 

 

Outputs

35

Main Bus Balanced Tape Output

 

 

 

 

 

 

 

36

Main Bus Single-ended

 

 

 

 

 

 

 

 

Tape Output

 

 

 

 

 

 

 

37

Record Bus Balanced

 

 

 

 

 

 

 

 

Tape Output

 

 

 

 

 

 

 

38

Record Bus Single-ended

 

 

 

 

 

 

 

 

Tape Output

 

 

 

 

 

 

 

39

Balanced Main Output

 

 

 

 

 

 

 

40

Single-ended Main Output

 

 

 

 

 

 

 

41

CAST Outputs

 

 

 

 

 

Remote

42

RC-5 Input

 

 

 

 

 

43RC-232 Input

4412 VDC In/Out

Link Control 45 CAN Link In/Out

Phono

46

Phono Power Port

Power

47

DC Power Connector

 

48

IEC Power Cord Receptacle

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Contents Evolution Page Contents List of Illustrations Letter from Dan D’Agostino Letter from Dan D’Agostino About Krell Krell LegacyRevolutionary Krell Cast Technology Voltage Signal Transmission Traditional Audio SystemHow Cast and Krell Current Mode Interact Cast BasicsBest Musical Performance Cast Cable ConstructionEvolution Cast Core Technologies Zero Feedback Balanced Current Mode DesignEnsuring Maximum Performance Fully Balanced Discrete Volume Control Separate Power SupplyAdvanced Microprocessor Control Custom Software Inputs and Outputs ConfigurationsDefinition of Terms Operation Krell Current ModePreamplifier TechnologyLeft/Right Channel Orientation Unpacking and PlacementOpening the Evolution Two Shipping Carton To Remove the Preamplifier Channel from the Shipping CartonRepeat Steps 1-5 for the remaining preamplifier channels PlacementAC Power Guidelines Connecting the Evolution Two to Your System Quick StartOperating the Evolution Two Linked Mode Anatomy of an Evolution Two 11 12 13Evolution Two Remote Control Chassis PowerFront Panel Description Remote Functions on the Front PanelPreamplifier Functions DisplayMenu Button or Key Level ControlNavigate/Customize Enter Button or KeyRemote Control Description Battery Installation and RemovalCompact Disc Functions Amplifier FunctionsIEC Power Cord Receptacle Outputs Back Panel DescriptionInputs 35, 36 Main Bus Outputs42 RC-5 Remote Connections on the Back Panel37, 38 Record Bus Outputs 43 RS-232Phono Stage Connector Link ControlInput and Output Connections Connecting the Evolution Two to Your SystemXLR Pin Configuration Connection StepsNever connect two power supplies together Connections Using can Link To Connect Multiple Evolution Two Preamplifiers via can LinkOn/Off and Stand-by Operation Linked Mode Evolution Two OperationPlay and Record To Turn Off Your SystemOperation Using can Link Customizing the Evolution Two Navigation ConventionsBacklight Menu FunctionsAC Mains Enter the menu, thenUse to make a left channel respond as a right channel BalanceChannel Assign Clone Use to make a right channel respond as a left channelDisplay Front panel display times out after 5 seconds InfoFront panel display is always on To select input names for other inputs, repeat Steps 3 Input Level TrimInput Name Phase of the selected input is inverted 180 degrees Input PhasePhase of the selected input is unaffected Input TriggerEvolution Two responds to 12 V input trigger commands IR Out ControlLink Control can Link Output of the Evolution Two is completely silenced MuteOutput Trigger RC-5 Control RS-232 Control Recalls the factory settingsRecall Save Software CloneInitiates the software clone Tape InputBegins the software clone process Theater Mode Volume Display +12 dB. The options are Enter the menu, thenQuestions and Answers Troubleshooting System Noise Appendix can Link and Multiple Evolution Two Preamplifiers Connection of multiple preamplifier channelsAppendix can Link and Multiple Evolution Two Preamplifiers Warranty Warranty Service@krellonline.com Return Authorization ProcedureTo contact the Krell Service Department AM to 500 PM ESTSpecifications Control outputs

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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