Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER manual Specifications, Control outputs

Page 60

Specifications

Inputs

3CAST via 4-pin bayonet connectors

3balanced via XLR connectors

4single-ended via RCA connectors

Tape input

1balanced via XLR connector or

1single-ended via RCA connector, user configurable

Main outputs

2CAST via 4-pin bayonet connectors

1balanced via XLR connector

1single-ended via RCA connector

Tape outputs

1balanced via XLR connector and

1single-ended via RCA connector, buffered, connected to main input- selection bus

1balanced via XLR connector and

1single-ended via RCA connector, buffered, connected to a dedicated record-output bus

Control inputs

1RS-232 input via a 9-pin D-subminiature connector

1remote IR detector input via

a 3-conductor 3.5 mm connector

112 VDC trigger input via 3.5 mm connector

1 preamplifier link via an RJ-45 connector

Control outputs

2 individually programmable 12 VDC trigger outputs via 3.5 mm connectors

1 preamplifier link via an RJ-45 connector

Power output

1phono power output (±20 VDC) for KPE via a 9-pin D-subminiature connector

Input impedance

CAST: 35 Ohms

Balanced: 40 k Ohms

Single-ended: 20 k Ohms

Output impedance

CAST: >1 M Ohms

Balanced: 250 Ohms

Single-ended: 125 Ohms

Gain

12dB (CAST or balanced output)

6dB (single-ended output)

Volume control Balanced, current-mode,

16-bit, discrete R-2R ladder

Input overload

CAST: 11 mA RMS

Balanced: 9 V RMS

Single-ended: 18 V RMS

Output overload

CAST: 22 mA RMS

Balanced: 20 V RMS

Single-ended: 10 V RMS

Frequency response

20 Hz to 20 kHz ±0.01 dB

Balanced or single-ended inputs:

0.2Hz to 1.3 MHz +0, -3 dB CAST inputs:

0.2Hz to 2 MHz +0, -3 dB

Total harmonic distortion plus noise Balanced Output:

<0.003%, 20 Hz to 20 kHz, 4 V RMS CAST output: 4 mA RMS

Signal-to-noise ratio

4 V RMS balanced or 4 mA RMS CAST output

Wideband, unweighted: >97 dB

“A” weighted: >104 dB

Power consumption

Standby: 50 W

Power on: 80 W

Power on, with KPE: 90 W

Dimensions

Preamplifier only:

17.3in.W x 3.7 in. H x 18.5 in. D

43.8cm W x 9.5 cm H x 47 cm D

Power supply only:

17.3in. W x 3.7 in. H x 17.3 in. D

43.8cm W x 9.5 cm H x 43.8 cm D

Preamplifier channel:

17.3in. W x 7.3 in. H x 18.5 in. D

43.8cm W x 18.5 cm H x 47 cm D

Stereo pair:

17.3in. W x 14.6 in. H x 18.5 in. D

43.8cm W x 37.1 cm H x 47 cm D

Weight

Shipped: 69 lbs., 31.2 kg

Preamplifier only: 21 lbs., 9.5 kg

Power supply only: 31 lbs., 14 kg

56

Image 60

Contents Evolution Page Contents List of Illustrations Letter from Dan D’Agostino Letter from Dan D’Agostino About Krell Krell LegacyVoltage Signal Transmission Traditional Audio System How Cast and Krell Current Mode InteractRevolutionary Krell Cast Technology Cast BasicsCast Cable Construction Evolution CastBest Musical Performance Zero Feedback Balanced Current Mode Design Ensuring Maximum PerformanceCore Technologies Fully Balanced Discrete Volume Control Separate Power SupplyAdvanced Microprocessor Control Custom Software Configurations Definition of TermsInputs and Outputs Krell Current Mode PreamplifierOperation TechnologyUnpacking and Placement Opening the Evolution Two Shipping CartonLeft/Right Channel Orientation To Remove the Preamplifier Channel from the Shipping CartonPlacement AC Power GuidelinesRepeat Steps 1-5 for the remaining preamplifier channels 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 Power Front Panel DescriptionChassis Remote Functions on the Front PanelPreamplifier Functions DisplayLevel Control Navigate/CustomizeMenu Button or Key Enter Button or KeyRemote Control Description Battery Installation and RemovalCompact Disc Functions Amplifier FunctionsIEC Power Cord Receptacle Back Panel Description InputsOutputs 35, 36 Main Bus OutputsRemote Connections on the Back Panel 37, 38 Record Bus Outputs42 RC-5 43 RS-232Phono Stage Connector Link ControlConnecting the Evolution Two to Your System XLR Pin ConfigurationInput and Output Connections 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 ConventionsMenu Functions AC MainsBacklight Enter the menu, thenBalance Channel AssignUse to make a left channel respond as a right channel Clone Use to make a right channel respond as a left channelDisplay 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 Phase Phase of the selected input is unaffectedPhase of the selected input is inverted 180 degrees Input TriggerEvolution Two responds to 12 V input trigger commands IR Out ControlLink Control can Link Mute Output TriggerOutput of the Evolution Two is completely silenced RC-5 Control Recalls the factory settings RecallRS-232 Control Save Software CloneTape Input Begins the software clone processInitiates the software clone 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 Return Authorization Procedure To contact the Krell Service DepartmentService@krellonline.com AM to 500 PM ESTSpecifications Control outputs