Krell Industries KAV-400xi, Instructions For Use Manual

Page 1: ...THE LEADER IN AUDIO ENGINEERING KAV 400xi Remote Control Integrated Amplifier Instructions for Use Owner s Reference ...

Page 2: ...irective 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 400xi must be unob structed 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 po...

Page 3: ... 9 Remote Control Only Functions 9 BACK PANEL DESCRIPTION 12 CONNECTING THE KAV 400xi TO YOUR SYSTEM 14 Connection Steps 14 OPERATING YOUR KAV 400xi 15 Amplifier Operation 15 Tape Input and Output 16 OPTIONAL CONFIGURATIONS 17 Configuring the KAV 400xi for Theater Throughput 17 Preamplifier Output 18 HOW TO TROUBLESHOOT SYSTEM NOISE 19 QUESTIONS AND ANSWERS 20 WARRANTY 21 RETURN AUTHORIZATION PROC...

Page 4: ...iv Krell KAV 400xi Illustrations FIGURE 1 The KAV 400xi Front Panel 6 FIGURE 2 The KAV 400xi Remote Control 6 FIGURE 3 The KAV 400xi Back Panel 11 Page ...

Page 5: ...d 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 400xi is easy to operate and integrate into your system The remote control accesses all amplifier functions and remote control connection options allow the KAV 400xi to be easily con nected with other components ...

Page 6: ... 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 l...

Page 7: ...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 TECHNOLOGY Krell KAV 400xi 3 ...

Page 8: ...remote control 1 CR2025 lithium battery 1 packet containing the Quick Setup Guide and the warranty registration card 2 Grasp the underside of the amplifier and lift it straight out of the packing box 3 Place the amplifier in a safe location and remove the protective plastic wrapping If any of these items are not included please contact your authorized Krell dealer Save all packing materials If you...

Page 9: ...ntilation 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...

Page 10: ...y activate other Krell components Consult the Krell reference manual for each model to review your component s full remote control capabilities 6 Krell KAV 400xi Power 1 Power Button 2 Power LED 3 Stand by LED 4 Infrared Sensor 12 Pre Key Remote Analog Devices 5 S 1 S 2 S 3 and B 1 Buttons Keys and LEDs 6 Tape Button or Key 7 Tape LED Mode Indicators 8 Mute Button or Key 9 Mute LED Volume Adjustme...

Page 11: ... KAV 400xi 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 400xi remote control For proper remote control operation make sure that nothing is obstructing the infrared sensor 5 S 1 S 2 S 3 and B 1 Buttons Keys and LEDs Use these bu...

Page 12: ...e button on the front panel or the mute key on the remote control 8 10 Level Knob Level Keys The level knob on the front panel or the level keys on the remote control adjust the amplifier output level The output level is indicat ed numerically on the front panel display with a range from 0 151 11 Front Panel Display The front panel display shows volume and balance levels and Theater Throughput sta...

Page 13: ...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 Replace battery when remote control function becomes intermittent Remove battery if the remote control is not used for a long period of ti...

Page 14: ...t the balance is right or left of cen ter and by how much on a scale of 1 least out of balance to 5 most out of balance Example A display of 3 means that the balance is moderately right of center A display of 5 means the balance is severely left of center The remote control keys listed above function with the KAV 400xi Other keys on this remote control may activate other Krell components for examp...

Page 15: ...USE AGC 8 NO USER SERVICEABLE PARTS INSIDE Krell KAV 400xi 11 Amplifier Channel Outputs 14 Left and Right Loudspeaker Outputs Analog Inputs 15 Left and Right Balanced Analog Inputs 16 Left and Right Single ended Analog Inputs 17 Left and Right Tape Inputs Analog Outputs 18 Left and Right Tape Outputs 19 Left and Right Preamp Outputs Remote Connections 20 RC 5 In 21 12 VDC In Out Power 22 IEC Conne...

Page 16: ...S 3 inputs via RCA connectors 17 Left and Right Tape Inputs The KAV 400xi is equipped with a pair of single ended tape inputs via RCA connectors 18 Left and Right Tape Outputs The KAV 400xi is equipped with a pair of single ended tape outputs via RCA connectors 19 Left and Right Preamp Outputs The KAV 400xi is equipped with a pair of single ended pre amplifier outputs 20 RC 5 In The KAV 400xi is e...

Page 17: ...tom installation to take full advantage of the remote capability of the KAV 400xi 22 IEC Connector The connector is for use with the provided IEC standard 15 amp power cord 23 Line Fuse The 50 60 Hz line fuse protects the KAV 400xi against short cir cuits from the external AC power 24 AGC 8 Fuses The AGC 8 fuses protect the KAV 400xi against short circuits in the loudspeaker output Fuses must be r...

Page 18: ...ier 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 4 Connect the left and right outputs of your source components to the appropriate analog inputs 15 16 17 on the KAV 400xi The KAV 400xi is equipped with one balanced input B 1 three single ended inputs S 1 S 2 or S 3 and one tape input...

Page 19: ...th 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 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 playb...

Page 20: ...nction select an audio source for recording using either the S 1 S 2 S 3 or B 1 analog input buttons or keys 5 Press the tape button on the front panel or tape key on the remote on the to switch between the tape recorder output red tape monitor LED 7 illuminated and the input source red tape monitor LED not illuminated 3 Use the tape output to create a processor loop when the KAV 400xi is connecte...

Page 21: ...ote 5 for the device you wish to configure for Theater Throughput The LED illuminates 3 Press the button or key again and hold it for four seconds The front panel display 11 shows thr Make sure the level on the source component is set to zero when configuring the KAV 400xi input set for Theater Throughput Source components without level controls should not be connected to an input configured for T...

Page 22: ... outputs 19 These outputs enable the KAV 400xi to be used as a preamplifier when it is connected to a separate amplifier The amplifier channel outputs are always active even when the KAV 400xi is being used only as a preamplifier Optional Configurations continued Note Preamplifier Output ...

Page 23: ...ck 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 interc...

Page 24: ...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 Q When I use the KAV 400xi s Theater Throughput capability with my surround sound processor where should I set the volume on t...

Page 25: ...ave 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...

Page 26: ... the Service Department have been made in advance Proof of pur chase will be required for warranty validation at the time of hand delivery 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 nonstand...

Page 27: ...CA connectors TAPE INPUT AND OUTPUT 1 pair single ended via RCA connectors OUTPUT VOLTAGE Peak to peak 138 V OUTPUT POWER 8 Ohms 200 W 4 Ohms 400 W 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 Shipped 36 0 lb 16 4 kg Unit only 31 0 lb 14 1 kg Krell Industries Inc 45 Connair...