Krell Industries EVOLUTION TWO MONAURAL PREAMPLIFIER Instrukcja Użytkownika

OWNER’S REFERENCEEVOLUTIONEVOLUTION TWOMONAURAL PREAMPLIFIER

6Ensuring Maximum Performance“My pursuit of excellence in sound reproduction and my love of great musical performance fuels the ongoingEvolution desig

7Fully Balanced Discrete Volume ControlThe volume control is realized with a 16-bit balanced resistor ladder, which useslow-resistance, high-linearity

8(Separate Power Supply continued)trol circuitry team ultra-stable voltage reference chips with the same discrete high-current driver and output trans

Definition of TermsFollowing are the definitions of key terms used in this owner’s reference.ConfigurationsCAN LinkThe communication system that links

PreamplifierChannelAlso termed preamplifier or preamplifier channel. A channel is one Evolution Two,comprised of one preamplifier chassis and one powe

11Unpacking and PlacementThis section describes the procedures for safely unpacking and placing yourEvolution Two Monaural Preamplifier. Each Evolutio

12(To Remove the Preamplifier from the Shipping Box continued)2. Carefully remove the preamplifier chassis, power supply chassis, and acces-sories fro

continued13SECTION THREEQuick StartTo access the full array of available functions for the Evolution Two MonauralPreamplifier, please read the entire

14(Connecting the Evolution Two To Your System continued)6. On each preamplifier channel, connect the supplied AC power cord to the IECpower cord rece

15SECTION FOURAnatomy of an Evolution TwoThis section describes Evolution Two Monaural Preamplifier functions.Figure 1 Evolution Two Preamplifier Cha

Evolution Two Monaural Preamplifier Owner’s Reference, v05.0Krell Industries, Inc.45 Connair RoadOrange, CT 06477-3650 USATEL 203-799-9954FAX 203-89

Figure 2 Evolution Two Remote Control163 Power Key8 Single-ended InputSelection Keys9 Balanced Input Selection Keys10CAST Input Selection Keys11Tape

17Front Panel DescriptionSee Figure 1 on page 15Each Evolution Two Monaural Preamplifier channel is comprised of two chas-sis, the preamplifier chassi

Preamplifier Functions8, 9, 10 Input Select Buttons or KeysUse these buttons to select the corresponding rear panel input that is connect-ed to a CA

Level Control16 Level Control Knob or Level KeysUse this knob or keys to increase or decrease system volume level or, with thebalance key (22), to adj

20Remote Control DescriptionSee Figure 2 on page 16The Evolution Two Monaural Preamplifier remote provides all of the power, pream-plifier, level cont

21Compact Disc FunctionsThe compact disc keys of the Evolution Two remote control are functional with allKrell compact disc players.23 Pause KeyUse th

POWERINOUTININPUTSTAPE OUTPUTSMAIN BUS RECORD BUSMAIN OUTPUTS1 OUT2 LINK LINK EVOLUTION TWOEVOLUTION TWOINFigure 3 Evolution Two Preamplifier Chassis

Back Panel DescriptionSee Figure 3 on page 22The Evolution Two Monaural Preamplifier back panel provides all input and outputconnections, remote contr

(Outputs continued)37, 38 Record Bus OutputsThe Evolution Two is equipped with one balanced record bus output with XLRconnectors and one single-ended

systems to be easily coordinated. For more information on customizing the 12 Vtrigger, see Input Trigger, on page 39. Mono 1/8” mini connectors are us

iiiContentsList of Illustrations, page ivA Letter from Dan D’Agostino, page 1SECTION ONE: About Krell, page 3The Krell Legacy, Revolutionary Krell CAS

26SECTION FIVEConnecting the Evolution Two to Your SystemThis section describes Evolution Two Monaural Preamplifier connections and intro-duces the CA

27The following steps describe how to connect an Evolution Two preamplifier toyour system:1. Connect each power supply chassis and preamplifier chassi

Connections Using CAN LinkThe Evolution Two brings a new convenience to the operation of monaural pream-plifiers, using a sophisticated, reliable cont

Evolution Two OperationThe Evolution Two Monaural Preamplifer is easy to operate. Instructions follow foron/off and stand-by operation.IMPORTANTAlways

30To Turn Off Your System 1. Place the amplifiers in the stand-by mode.2. Press the power button on the preamplifier chassis front panel or the pwr ke

31Operation Using CAN LinkWhen a system with linked Evolution Two preamplifier channels is powered on,left/right orientation is established immediatel

Customizing the Evolution TwoThe Evolution Two Monaural Preamplifier easy-to-use menu allows you to config-ure the following functions. You can also u

continuedMenu FunctionsAC MainsThis function enables you to operate the Evolution Two from a switched AC outlet.If AC Mains is set to ON, the preampli

BalanceThis function enables you to select the balance between the left and right chan-nels. The options are: CENTER, L .5-5 dB <, R .5-5 dB >.E

FORCE RIGHTUse to make a right channel respond as a left channel.FORCE NONEThe preamplifier channel ignores balance selections. Use this option to set

ivList of IllustrationsFigure 1, page 15Evolution Two Preamplifier Chassis andPower Supply Chassis Front PanelsInset Evolution Two Preamplifier Channe

CLONE BEGINSends the message that a clone is about to begin, from the clone transmitter tothe clone receiver(s).CLONE TRANSMITOnce the clone begin mes

37continuedONThe front panel display is always on.TIMEDThe front panel display times out after 5 seconds.BRIGHTNESSControls the brightness of the disp

Input Level TrimThis function enables you to select an input offset for a particular input. Theoptions are: +/-6 dB, in 1 dB increments.Enter the menu

Input PhaseThis function enables you to invert the absolute polarity of the selected input 180degrees. The selections are: NORMAL, INVERT.Enter the me

40(Input Trigger continued)OFFThe Evolution Two does not respond to 12 V input trigger commands. NORMALThe Evolution Two responds to 12 V input trigge

continued41Link Control (CAN Link)This function enables you to link and unlink preamplifiers. The options are: LINKED,UNLINKED.Enter the menu, then:1.

42MuteThis function enables you to control the mute mode. The options are: FULL, -20 dB,BACK.Enter the menu, then:1. Use the level control knob on the

438. Use the level control knob or up and down keys to scroll to: BACK.9. Press the enter button or key to return to: TRIGGER 1.10. Use the level cont

44RecallThis function enables you to access factory default settings or your own savedsettings, or to undo a clone. The options are: FACTORY, SAVED, C

continued454. Press the enter button or key to confirm the selection. The front panel displayreads: RS-232 CONTROL. The right-terminated preamplifier

A Letter from Dan D’AgostinoDear Audio Enthusiast,Thank you for your purchase of the Evolution Two preamplifier. My new Evolution products represent a

(Software Clone continued)4. Press the enter button or the enter key (18) again. The front panel display onthe clone transmitter shows the default: AR

47Theater ModeThis function enables you to select theater mode volume for a particular input.Use this function when connecting the output of a preamp/

48Volume DisplayThis function enables you to select the numeric mode for the volume display, dis-playing values from softest to loudest: 0 to 151. Alt

Questions and AnswersQ. Why does the second preamplifier channel not respond when I select an inputor adjust the volume on the other preamplifier chan

50Troubleshooting System NoiseWhen you mix and match high-performance audio components, each with its ownground potential, a low frequency hum may occ

51Appendix: CAN Link and Multiple Evolution Two PreamplifiersThe Evolution Two Monaural Preamplifier brings a new convenience to the opera-tion of mon

Left/Right Channel OrientationEvolution Two preamplifiers are assembled as left or right channels. PreamplifierRCA connectors (31, 36, 38, 40) are col

53WarrantyEach Evolution Series preamplifier has a limited warranty of five years for parts andlabor on circuitry. Should this product fail to perform

54Krell will pay return freight to the U.S.A.-based freight forwarder of your choice.Freight and other charges to ship the unit from the freight forwa

Return Authorization ProcedureIf you believe there is a problem with your component, please contact your dealer,distributor, or the Krell factory to d

I have some exciting news for you. Work on a new source component for theEvolution Series is ongoing as of this writing. Possessed of the unique Evolu

SpecificationsInputs3 CAST via 4-pin bayonet connectors3 balanced via XLR connectors4 single-ended via RCA connectorsTape input1 balanced via XLR conn

About KrellThis section describes the Krell Legacy, the innovative features and technology ofthe Evolution Two, and defines CAST and other key terms u

4Revolutionary Krell CAST TechnologyCurrent Audio Signal Transmission, termed CAST, is a revolutionary method ofconnecting analog audio components for

5CAST preserves the transmitted signal between components. Together, CAST andKrell Current Mode technologies unify separate Krell components into a si