Krell Industries KAV-300IL User's Manual
Contents
1. Remote Control Functions continued ANALOG FUNCTIONS OUTPUT CONTROL FUNCTIONS 26 Analog Input Keys Use these keys to select a balanced source B 1 or single ended sources S 1 S 2 or S 3 The selected input LED on the front panel illuminates 27 Tape Key Use this key to monitor the output signal of a three head analog tape recorder compared to the output signal from an audio source when making a recording See Tape Input and Output on page 17 The red tape monitor LED on the front panel illumi nates when the tape monitor is activated The LED does not illumi nate when an audio source is activated 28 Mute Key Use this key to interrupt the signal of the input you have selected To unmute press the mute key again The red mute LED 9 on the front panel illuminates when you press the mute button 8 or key 29 Vol Volume Keys Press these keys to adjust the amplifier output level which is indi cated numerically on the front panel display 11 range is 0 151 30 Bal Balance Keys Use these keys to shift the balance to the left or the right channel Balance level is indicated in the front panel display 11 To display balance push any key on the remote The front panel display indicates C when the system is balanced If the system is not balanced the front panel display indicates if balance is right or left of center and how much on a scale of 1 least out of balance to 5 most out of balance Exa2. Battery The KAV 300iL remote control uses one CR2025 lithium battery Installation which is included with the shipment and To open the battery compartment on the back of the remote Removal control 1 Place the remote face down on the table 2 Use your thumbnail or a small jeweler s or eyeglass screw driver to move the small switch toward the center of the remote while using your index fingernail or screwdriver to pull down gently on the slot to the right of the switch The battery compartment will slide out Note Do not use a knife or other sharp objects to open the battery compart ment they will scratch the remote control finish 3 Place the battery positive side up in the battery tray 4 Slide battery compartment back into the remote until you hear a Click The remote control is ready for operation Notes Replace battery when remote control function becomes intermittent Remove battery if the remote control is not used for a long period of time Battery leakage can damage the remote control Remote Control The KAV 800iL remote control accesses complete power amplifier Functions and preamplifier functions A description of the remote control keys that activate the KAV 300iL follows POWER 24 Pwr Power Key Use this key to switch the KAV 300iL between the stand by and the operational modes 25 Pre Key Use this key to activate the KAV 300iL remote to access amplifier commands Krell KAV 300iL 13
3. This allows you to turn the KAV 300iL on or off or to and from stand by from other components The 12 VDC output current is limited to 30 ma Consult the owner s reference of the components used in a custom installation to take full advantage of the remote capability of the KAV 300iL 21 IEC Connector The connector is for use with the provided IEC standard 15 amp power cord 22 Line Fuse The 50 60 Hz line fuse protects the KAV 300iL against short cir cuits from the external AC power 23 AGC 8 Fuses The AGC 8 fuses protect the KAV 300iL against short circuits in the loudspeaker output Fuses must be replaced with the fuse value specified on the back panel Krell KAV 300iL Figure 3 The KAV 300iL Remote Control Power 24 Power Key 25 Pre Key Analog Functions 26 Analog Input Keys 27 Tape Key Output Control Functions 29 Mute Key 29 Vol Volume Keys 30 Bal Balance Keys Note 9 00 99 eat JOO APA 29 QO OI 26 WO SO GO Mono St AWEM lt Seek gt w Y S O00 SADA DAOA K lt e3 gS Remote control keys listed above function with the KAV 300iL Other keys on this remote control may activate other Krell components Consult the Krell reference manual for each model to review your components full remote control capabilities Krell KAV 300iL Remote Control Description See Figure 3 on page 12
4. to the driver stage are pure Class A Krell s new surface mount technology SMT means that the KAV 300iL is an integrated amplifier with big power 200 Watts per channel that does not require big space SMT allows individ ual circuit elements to be placed very close together This shortens signal paths and allows circuit elements to operate at the same temperature resulting in more accurate signal transfer and enhanced reliablilty The KAV 300iL is easy to operate and integrate into your system The remote control accesses all amplifier functions and remote control connection options allow the KAV 300iL to be easily con nected with other components The Theater Throughput feature provides easy integration of the amplifier into a home theater system This owner s reference manual contains important information on the placement installation and operation of the KAV 300iL Please read this information carefully A thorough understanding of these details will help ensure satisfactory operation and long life for your KAV 300iL and related system components Krell KAV 300iL Definition of Terms CONFIGURATIONS INPUT AND OUTPUT CONNECTIONS OPERATION Following are the definitions of key terms used in your owner s ref erence manual Theater Throughput Theater Throughput is a Krell configuration option that allows the signal from a surround preamp processor to pass through a Krell preamplifier or integrated
5. www krellonline com To contact the Krell Service Department TEL 203 799 9954 Monday Friday 9 00 am to 5 00 pm EST FAX 203 799 9796 E MAIL service krellonline com WEBSITE http www krellonline com To return a product to Krell please follow this procedure so that we may serve you better 1 Obtain a Return Authorization Number R A number and ship ping address from the Krell Service Department 2 Insure and accept all liability for loss or damage to the product during shipment to the Krell factory and ensure all freight ship ping charges are prepaid The product may also be hand delivered if arrangements with the Service Department have been made in advance Proof of pur chase will be required for warranty validation at the time of hand delivery IMPORTANT HOW TO PURCHASE ADDITIONAL PACKING SERIAL NUMBER Use the original packaging to ensure the safe transit of the product to the factory dealer or distributor Krell may at its discretion return a product in new packaging and bill the owner for such pack aging if the product received by Krell was boxed in nonstandard packaging or if the original packaging was so damaged that it was unusable If Krell determines that new packaging is required the owner will be notified before the product is returned To purchase additional packaging please contact your authorized Krell dealer distributor or the Krell Service Department for assis tance Your KA
6. After the KAV 300iL is connected to AC power and is in the stand by mode use the power button 1 or key 24 to switch the component to the operational mode The blue power LED 2 illuminates The KAV 300iL Remote Control Integrated Amplifier is easy to operate However great care should be exercised when operating a system that includes the KAV 300iL because of the amplifier s power output Switching between active sources without muting the preamplifier output or bumping miscuing a device can gener ate large transients at low frequencies The KAV 300iL may gen erate enough power with these transients to damage most loud speakers To avoid damage be sure to switch all sources with the preamplifier level either muted or fully attenuated Do not change inputs to the amplifier while the amplifier is on Note ON OFF AND STAND BY OPERATION Krell amplifiers have large reserves of clean power and can safely drive loudspeakers to higher sound pressure levels than other amplifiers However use care when setting high playback levels and lower the vol ume level at any sign of loudspeaker distress When powering up any system always turn amplifiers on last When powering down always turn amplifiers off first 1 When the amplifier is in stand by mode with the red stand by LED 3 illuminated turn the amplifier on by pressing the power button 1 or pressing the power key 24 on the remote control There is an audible c
7. Krell Industries Inc its subsidiaries and authorized agents Krell Current Mode and Theater Throughput are trademarks of Krell Industries Inc All other trade marks and tradenames are registered to their respective companies 2001 by Krell Industries Inc All rights reserved P N 305219 Contents Page INTRODUCTION 1 DEFINITION OF TERMS 2 UNPACKING 4 PLACEMENT 5 AC Power Guidelines 5 Power Cord 5 FRONT PANEL DESCRIPTION 7 BACK PANEL DESCRIPTION 10 REMOTE CONTROL DESCRIPTION 13 Battery Installation and Removal 13 Remote Control Functions 13 CONNECTING THE KAV 300iL TO YOUR SYSTEM 15 Connection Steps 15 OPERATING YOUR KAV 300iL 16 Amplifier Operation 16 Tape Input and Output 17 OPTIONAL CONFIGURATIONS 18 Configuring the KAV 300iL for Theater Throughput 18 HOW TO TROUBLESHOOT SYSTEM NOISE 20 QUESTIONS AND ANSWERS 21 WARRANTY 22 RETURN AUTHORIZATION PROCEDURE 23 SPECIFICATIONS Back Cover Krell KAV 300iL Illustrations Page FIGURE 1 The KAV 300iL Front Panel 6 FIGURE 2 The KAV 300iL Back Panel 9 FIGURE 3 The KAV 300iL Remote Control 12 Krell KAV 300iL Introduction Thank you for your purchase of the Krell KAV 300iL Remote Control Integrated Amplifier This fully integrated amplifier and pre amplifier has a fully balanced signal path from input to output and employs a wide bandwidth design with low negative feedback for sonic accuracy throughout the frequency spectrum All circuits up
8. is in the operational mode and is ready to play music Krell KAV 300iL Definition of Terms continued TECHNOLOGY Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than voltage domain This unique technology provides the component with exceptional speed and a wide bandwidth Krell KAV 300iL Unpacking After opening the box and removing the top layer of foam the KAV 300iL and the KAV 300iL accessory kit containing the follow ing items will be visible 1 AC power cord 1 12 VDC 12 V trigger cable 2 spare loudspeaker fuses AGC 8 1 KAV 800iL remote control 1 CR2025 lithium battery Grasp the underside of the amplifier and lift it straight out of the packing box Place the amplifier in a safe location and remove the protective plastic wrapping Notes If any of these items are not included please contact your authorized Krell dealer Save all packing materials If you must ship your KAV 300iL in the future repack the unit in its original packaging to prevent shipping damage 4 Krell KAV 300iL Placement AC Power Guidelines Power Cord Before you install the KAV 300iL into your system review the fol lowing guidelines to choose the location for the KAV 300iL This will facilitate a clean trouble free installation The KAV 300iL does not require any type of special rack or cabinet for installation F
9. ship ping box within 15 days of purchase Thank you This Krell product has a limited warranty of five years for parts and labor on circuitry Should this product fail to perform at any time during the warranty Krell will repair it at no cost to the owner except as set forth in this warranty The warranty does not apply to damage caused by acts of God or nature The warranty on this page shall be in lieu of any other warranty expressed or implied including but not limited to any implied warranty of merchantability or fitness for a particular purpose There are no warranties which exceed beyond those described in this document If this product does not perform as warranted herein the owner s sole remedy shall be repair In no event will Krell be liable for incidental or consequential damages arising from purchase use or inability to use this product even if Krell has been advised of the possibility of such damages Proof of purchase in the form of a bill of sale or receipted invoice substantiating that the unit is within the warranty period must be presented to obtain warranty service The warranty begins on the date of retail purchase as noted on the bill of sale or receipted invoice from an authorized Krell dealer or distributor The warranty for Krell products is valid only in the country to which they were originally shipped through the authorized Krell distributor for that country and at the factory There may be restrictions o
10. standard binding posts for each amplifier channel These connectors accept bare wire pins or spade lugs Use the red terminal for the positive connection and the black terminal for the negative connection Connect the left and right outputs of your source components to the appropriate analog inputs 13 14 on the KAV 800iL The KAV 300iL is equipped with one balanced input B 1 three single ended inputs S 1 S 2 or S 3 and one tape input 15 The B 1 S 1 S 2 and S 3 inputs can be configured for Theater Throughput See Optional Configurations on page 18 for information on configuring an input for Theater Throughput Use the preamp outputs 17 to connect to an additional power amplifier for loudspeakers in another room Plug the AC cord into the IEC connector 21 on the back panel of the KAV 300iL Plug the remaining end into the AC wall receptacle The red stand by LED 3 illuminates There is no audible click or delay Pin 1 Shield ground Pin 2 Non inverting hot 0 Pin3 Inverting cold 180 Krell KAV 300iL Operating Your KAV 300iL Amplifier Operation This section provides information about operating the KAV 300iL The KAV 300iL provides basic input selection and volume control operation from the front panel The remote control includes addi tional preamplifier functions as well as CD transport and amplifier controls See Remote Control on page 13 for more information
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12. C pea ES LS KAV 300iL Remote Control Integrated Amplifier THE LEADER IN AUDIO ENGINEERING Instructions for Use Owner s Reference KAV 300iL Remote Control Integrated Amplifier Instructions for Use v 01 2 CONTACT INFORMATION WARNINGS Krell Industries Inc 45 Connair Road Orange CT 06477 3650 USA TEL 203 799 9954 FAX 203 891 2028 E MAIL krell krellonline com WEBSITE http www krellonline com C This product complies with the EMC directive 89 336 EEC and the low voltage directive 73 23 EEC Do not place the integrated amplifier where it could be exposed to dripping or splashing The ventilation grids on the top and bottom of the KAV 300iL must be unobstruct ed at all times during operation Do not place flammable material on top of or beneath the component When making connections to this or any other component make sure all compo nents are off Turn off all systems power before connecting the KAV 300iL to any other component Make sure all cable terminations are of the highest quality free from frayed ends short circuits or cold solder joints THERE ARE NO USER SERVICEABLE PARTS INSIDE ANY KRELL PRODUCT Please contact your authorized dealer distributor or Krell if you have any ques tions not addressed in this reference manual This product is manufactured in the United States of America Krell is a registered trademark of Krell Industries Inc and is restricted for use by
13. LED 7 not illuminated 3 Use the tape output to create a processor loop when the KAV 300iL is connected to a graphic equalizer or other ancil lary equipment To activate this function connect the equip ment to the KAV 300iL tape outputs 16 as described in the equipment manufacturer s manual Press the tape button 6 or key 27 on the remote control to switch between the proces sor output red tape monitor LED 7 illuminated and the input source red tape monitor LED 7 not illuminated Note When changing sources lower the volume to off or mute the output This ensures that the next source played does not damage your system with a high output transient Krell KAV 300iL Optional Configurations Configuring the KAV 300iL for Theater Throughput HOW TO ACTIVATE AN INPUT FOR THEATER THROUGHPUT To simplify the integration of an audio video surround sound processor into your system set any input on the KAV 300iL S 1 S 2 S 3 or B 1 to operate as a unity gain stage Krell calls this configuration Theater Throughput When you configure a KAV 300iL input for Theater Throughput the KAV 300iL volume and balance controls are transferred to the audio video surround sound processor for integrated volume and balance management as well as ease of operation As long as the KAV 300iL input is configured for Theater Throughput and con nected to the audio video surround sound processor s input confi
14. V 300iL product serial number is Krell KAV 300iL 23 Krell Industries Inc 45 Connair Road Orange CT 06477 3650 USA TEL 203 799 9954 FAX 203 891 2028 E MAIL krell krellonline com WEB SITE www krellonline com Specifications All operational features functions specifications and policies are subject to change without notification FREQUENCY RESPONSE 20 Hz 20 kHz 0 dB 0 07 dB SIGNAL TO NOISE RATIO A WEIGHTED 99 dB TOTAL HARMONIC DISTORTION THD 1 kHz 20 kHz GAIN 35 8 dB INPUT SENSITIVITY 0 644 Vrms INPUT IMPEDANCE 47 kOhms 0 0496 0 2596 OUTPUT IMPEDANCE 0 17 Ohms POWER CONSUMPTION Idle 20 W Max 1 800 W TRANSFORMER 750 VA INPUTS ALL WITH THEATER THROUGHPUT 1 pair balanced via XLR connectors 3 pair single ended via RCA connectors KAV 300iL Remote Control Integrated Amplifier OUTPUTS 2 loudspeaker via 5 standard binding posts 1 pair single ended preamp via RCA connectors TAPE INPUT AND OUTPUT 1 pair single ended via RCA connectors OUTPUT VOLTAGE Peak to peak 138 V OUTPUT POWER 8Ohms 200W 4Ohms 400W REMOTE CONTROL 1 handheld wireless remote 1 12 VDC Out In 12 V trigger 1 RC 5 input via a DC power connector DIMENSIONS 17 3w x 3 5h x 17d in 50w x 8 9h x 43 2d cm WEIGHT Shipping 36 0 Ib 16 4 kg Unit only 31 0 Ib 14 1 kg v 01 2
15. amplifier with no gain for integrated vol ume and balance management of Krell home theater systems Balanced Asymmetrical input or output circuit that has equal impedance from both input terminals to a common ground reference point The industry standard for professional and sound recording instal lations balanced connections have 6 dB more gain than single ended connections and allow the use of long interconnect cables Balanced connections are completely immune to induced noise from the system or the environment Single ended A two wire input or output circuit Use care when using single ended connections as the ground connection is made last and broken first Turn the system off prior to making or breaking single ended connections Single ended connections are not recom mended for connections requiring long cable runs Off The component is off when the AC power cord is unplugged from the wall receptacle Stand by Mode A low power consumption status that keeps the audio circuits at idle When you plug the AC power cord into the wall receptacle the red stand by LED illuminates The component is now ready to be switched to the operational mode Krell recommends leaving the component in the stand by mode when it is not playing music Operational Mode When the component is in the stand by mode and you press the power button on the front panel or the power key on the remote control the blue power LED illuminates The component
16. g ured for Theater Throughput all KAV 300iL volume and balance adjustments are made through the surround sound processor When you disengage the KAV 300iL input from Theater Throughput the volume and balance controls revert to the KAV 300iL 1 Turn on the KAV 300iL power 2 Press and release the button 5 for the device you wish to configure for Theater Throughput The LED illuminates 3 Press the button again and hold it for four seconds The front panel display 11 shows thr IMPORTANT HOW TO DISENGAGE AN INPUT FOR THEATER THROUGHPUT Make sure the level on the source component is set to zero when configuring the KAV 300iL input set for Theater Throughput Source components without level controls should not be connected to an input configured for Theater Throughput Doing so can result in excessive and possibly damaging volume levels when the source is played Always turn off the source component before you configure any input on the KAV 300iL for Theater Throughput 1 Turn on the KAV 300iL power 2 Press and release the button 5 for the device you wish to dis engage from Theater Throughput The LED illuminates 3 Press the button again and hold it for four seconds Thr dis appears from the front panel display 11 indicating that Theater Throughput is disengaged Krell KAV 300iL Optional Configurations continued Preamplifier Output The KAV 800iL is equipped with a pair of si
17. lick The blue power LED 2 illu minates and the red stand by LED 3 turns off The amplifier is now ready for operation 2 With the amplifier in the mute position or the volume control fully attenuated select a source from the front panel 5 or using the remote control 26 Start playing the source Set the volume to a comfortable listening level using the level up and down buttons 10 or volume keys 29 Krell KAV 300iL Operating Your KAV 300iL continued ON OFF AND STAND BY OPERATION continued Tape Input and Output 3 To turn the amplifier off press the power button 1 or power key 24 The red stand by LED 3 illuminates It is now safe to turn off the rest of the system The KAV 300iL has a discrete tape input and output The tape output is used to send an input signal from S 1 S 2 S 3 or B 1 to a recording device or processor You can use the tape feature in three ways 1 Use this button to playback pre recorded tapes 2 Use the tape input to compare the output signal of a three head analog tape recorder to the output signal of an audio source when making a recording To activate this function select an audio source for recording using either the S 1 S 2 S 3 or B 1 analog input buttons 5 or keys 26 Press the tape button 6 or tape key 27 on the remote control to switch between the tape recorder output red tape monitor LED 7 illuminated and the input source red tape monitor
18. mple A display of 3 means that the balance is moderately right of center A display of 5 S means the balance is severely left of center Note The remote control keys listed above function with the KAV 300iL Other keys on this remote control may activate other Krell components for example compact disc players Consult the Krell owner s reference man ual for each component to review your component s full remote control capabilities Krell KAV 300iL Connecting the KAV 300iL to Your System USING BALANCED CONNECTIONS Connection Steps Krell recommends using balanced interconnect cables Balanced interconnect cables not only can minimize sonic loss but are also immune to induced noise especially with installations using long cables Balanced connections have 6 dB more gain than single ended connections When level matching is critical keep this gain value in mind Follow these steps to connect the KAV 300iL to your system 1 Pin assignments for the XLR connectors Make sure all power sources and components are off before connecting inputs and outputs Neatly organize the wiring between the KAV 300iL and all sys tem components Separate AC wires from audio cables to prevent hum or other unwanted noises from being introduced into the system Connect the left and right loudspeaker cables to the integrated amplifier s left and right loudspeaker output terminals 12 The KAV 300iL uses
19. n or changes to Krell s warranty because of regulations within a specific country Please check with your distributor for a complete understanding of the warranty in your country If a unit is serviced by a distributor who did not import the unit there may be a charge for Service even if the product is within the warranty period Freight to the factory is your responsibility Return freight within the United States U S A is included in the warranty If you have purchased your Krell product outside the U S A and wish to have it serviced at the factory all freight and associated charges to the factory are your responsibility Krell 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 forwarder to you are also your responsibility Krell is not responsible for any damage incurred in transit Krell will file claims for damages as necessary for units damaged in transit to the factory You are responsible for filing claims for shipping damages during the return shipment Krell does not supply replacement parts and or products to the owner of the unit Replacement parts and or products will be furnished only to the distributor performing Service on this unit on an exchange basis only any parts and or products returned to Krell for exchange become the property of Krell No expressed or implied warranty is made for any Krell product damaged by accident abuse mis
20. ngle ended preamplifi er outputs 17 These outputs enable the KAV 300iL to be used as a preamplifier when it is connected to a separate amplifier Note The amplifier channel outputs are always active even when the KAV 300iL is being used only as a preamplifier Krell KAV 300iL How to Troubleshoot System Noise AC grounding becomes critical when connecting high performance audio components When you mix and match audio components each with its own ground potential a low frequency hum may occur in one or both loudspeakers This sometimes occurs when introducing a new component into a system If a low frequency hum emanates from the loudspeakers when you place the KAV 300iL amplifier into the system follow these simple troubleshooting steps 1 Check all cable terminations making sure they have solid sol der joints and are of sound construction 2 With the amplifier off remove the interconnect cables then turn the amplifier on If the hum disappears turn the amplifier off and reinsert one of the interconnect cables Turn the amplifier back on If the hum reappears with one or both cables reinserted there may be a defective cable Have the interconnect cables checked before proceeding 3 If the interconnect cables are sound you may be experiencing a ground loop Please contact your authorized Krell dealer distributor or Krell for suggestions on how to solve this problem 20 Krell KAV 300iL Questi
21. og Inputs The KAV 300iL is equipped with three pairs of single ended S 1 S 2 or S 3 inputs via RCA connectors 15 Left and Right Tape Inputs The KAV 300iL is equipped with a pair of single ended tape inputs via RCA connectors 16 Left and Right Tape Outputs The KAV 300iL is equipped with a pair of single ended tape outputs via RCA connectors 17 Left and Right Preamp Outputs The KAV 300iL is equipped with a pair of single ended pre amplifier outputs 18 RC 5 In The KAV 300iL is equipped with an RC 5 input that makes custom installation easy and secure by accepting baseband RC 5 input commands from hardwired remote controllers 19 12 VDC Out The KAV 300iL is equipped with an output that sends 12 VDC 12 V trigger power on off signals to other Krell components and other devices that incorporate a 12 V trigger This allows you to turn other components on or off or to and from stand by from the KAV 300iL When the KAV 300iL is switched between stand by and operate it sends a signal from the 12 VDC Out that will switch other components allowing whole systems or parts of systems to be easily coordinated Krell KAV 300iL Back Panel Description continued REMOTE CONNECTIONS continued Notes POWER Note 20 12 VDC In The KAV 300iL is equipped with an input that receives 12 VDC 12 V trigger power on off signals from other Krell components and other devices that incorporate a 12 V trigger
22. ons and Answers Q Should leave my KAV 300iL on at all times A Krell recommends leaving the amplifier in the stand by mode ready to play music If you are not going to play music for a long time you may disconnect the amplifier from AC power supply When turn on the amplifier there is a loud hum through the loudspeakers What should do When a new component is introduced into a system a low frequency hum may occur in one or both loudspeakers Check all input and output connections making sure they are of sound construction See How to Troubleshoot System Noise on page 19 If the interconnects and cables are sound you may be experiencing a ground loop This can often be easily eliminated Please contact your authorized Krell dealer distributor or Krell for suggestions on how to solve this problem When I use the KAV 300iL s Theater Throughput capability with my surround sound processor where should set the volume on the KAV 300iL You do not need to set the volume on the KAV 300iL because the amplifier s volume and balance controls are not active in the Theater Throughput mode When using the KAV 300iL s Theater Throughput capability the surround sound processor controls the system volume See Optional Configurations on page 18 Krell KAV 300iL 21 Warranty To register your product for warranty benefits please complete and return the Warranty Registration Card enclosed in the
23. or the dimensions of the KAV 300iL see Specifications on the back cover Place the KAV 300iL on a firm level surface away from excessive heat humidity or moisture The KAV 300iL requires at least two inches 5 cm of clearance on each side and at least two inches b cm of clearance above and below the component to provide adequate ventilation Installations inside cabinetry may need extra ventilation The KAV 800iL is not hum sensitive Other components may be placed on or around the KAV 300iL make sure ventilation grids remain unobstructed Place the amplifier as close to the loudspeakers as possible and keep loudspeaker cable lengths to a minimum Loudspeaker cable adds impedance to the load the amplifier must drive regardless of the cable s gauge All Krell amplifiers drive the lowest impedances with ease but long loudspeaker cables reduce the maximum power that can be delivered to the loudspeakers The KAV 300iL has superb regulation and does not require a ded icated AC circuit Avoid connections through extension cords or multiple AC adapters High quality 15 amp grounded AC strips are acceptable High quality AC line conditioners or filters may be used if they are grounded and meet or exceed the units maximum power consumption of 1800 Watts The KAV 300iL should be operated only with the power cord supplied Please contact your authorized Krell dealer distributor or Krell before using any devices designed
24. r remote control operation make sure the infrared sensor is clear of any obstructions 5 S 1 S2 S 3 and B 1 Buttons and LEDs Use these buttons to select a balanced analog source component B 1 via an XLR connector or a single ended analog source com ponent S 1 S 2 or S 3 via single ended RCA connectors The selected button s LED illuminates 6 Tape Button Use this button to playback pre recorded tapes You may also use this button to compare the output signal of an analog tape recorder to an audio source See Tape Input and Output on page 17 7 Tape LED The red tape monitor LED illuminates when the tape monitor is activated The LED does not illuminate when an audio source is activated Krell KAV 300iL Front Panel Description continued MODE INDICATORS 8 Mute Button Use this button to interrupt the signal of the input you have select ed To unmute press the mute button again 9 Mute LED The red mute LED illuminates when you press the mute button or mute key 28 on the remote control VOLUME ADJUSTMENT 10 Level Up and Down Buttons FUNCTIONS The volume level buttons adjust the amplifier output level which is indicated numerically on the front panel display range is 0 151 11 Front Panel Display The front panel display shows volume and balance levels and Theater Throughput status 8 Krell KAV 300iL s snj Jexyeedspno1 1uBit pue ye 8 05V c snd eur ZZ 10 2e0uu02 OJI IZ sindu ede 1uBit pue
25. to alter or stabilize the AC power for the KAV 300iL Krell KAV 300iL q31 ede 7 uonng ede 9 Ae dsiq jeued uo Ga pue suoyng g suong umoq pue pue S S Z S L S S dN 19437 OL s jn q Bojeuy suonounJ jueunsn py euinjoA Josues poeJeJu 7 Gat Aq pueis q31 ein 6 31 498M0d Z uong ein N 8 uong J9MOg S1O E OIpDu POWN J9oMOd JMIOOE amp AV I lt US A31 o U tS zx S Lnw aav ES sS L S L H3ANOd o v ASCONVIS CY Jaued 1UO44 7I00 AV3 PUL L e1nDI4 Front Panel Description See Figure 1 on page 6 POWER ANALOG SOURCE COMPONENTS The front panel of the KAV 300iL accesses power on and off analog input selections volume control and mute The front panel display shows the volume and balance levels and Theater Throughput status 1 Power Button Use this button to switch the KAV 300iL between the stand by and the operational modes 2 Power LED The blue power LED illuminates when the KAV 800iL is in the operational mode The power LED also flashes when any remote control key is pressed 3 Stand by LED The red stand by LED illuminates when the KAV 300iL is plugged into a standard AC wall receptacle indicating that the amplifier is in the stand by mode and ready to be switched to the operational mode 4 Infrared Sensor The infrared sensor receives commands from the KAV S300iL remote control For prope
26. use natural or personal disaster or unauthorized modification Any unauthorized voltage conversion disassembly component replacement perfo ration of chassis updates or modifications performed to the unit will void the war ranty The operating voltage of this unit is determined by the factory and can only be changed by an authorized Krell distributor or at the factory The voltage for this product in the U S A cannot be changed until six months from the original purchase date In the event that Krell receives a product for warranty service that has been modified in any way without Krell authorization all warranties on that product will be void The product will be returned to original factory layout specifications at the owner s expense before it is repaired All repairs required after the product has been returned to original factory specifi cations will be charged to the customer at current parts and labor rates All operational features functions and specifications and policies are subject to change 22 Krell KAV 300iL Return Authorization Procedure HOW TO EXPEDITE SERVICE HOW TO RETURN A PRODUCT If you believe there is a problem with your component please con tact your dealer distributor or the Krell factory to discuss the problem before you return the component for repair To expedite service you may wish to complete and e mail the Service Request Form in the Service section of our website at http
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