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Krell Industries KAV-1500 manual

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  • Page 1

    Leader in Audio Engineering KAV-1500 Five-Channel Power Amplifier Instructions for Use Owner’s Reference[...]

  • Page 2

    KAV-1500 Five-Channel Power Amplifier Instructions for Use v 00.0 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 This product complies with the EMC directive (89/336/EEC) and the low-voltage directive (73/23/EEC). WARNINGS The amplif[...]

  • Page 3

    Contents INTRODUCTION DEFINITION OF TERMS UNPACKING PLACEMENT AC Power Guidelines FRONT PANEL DESCRIPTION: KAV-1500 BACK PANEL DESCRIPTION: KAV-1500 CONNECTING THE KAV-1500 AMPLIFIER TO YOUR SYSTEM Input and Output Connections OPTIONAL SYSTEM CONFIGURATIONS Multi Amp Throughput Bridged Operation Example of Connection Scenario: Multi Power Mode AMPL[...]

  • Page 4

    Illustrations FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 The KAV-1500 Front Panel The KAV-1500 Back Panel Reconfiguring the KAV-1500 for MAT Operation Reconfiguring the KAV-1500 for Bridged Operation Page 5 7 13 15 iv Krell KAV-1500 Amplifier[...]

  • Page 5

    Introduction Thank you for your purchase of.the Krell KAV-1500 Five-Channel Power Amplifier. The KAV-1500 amplifier provides substantial five-channel output power that delivers realistic music reproduction at an exceptional value. The amplifier can be customized with a variety of optional system configurations, including a multi power mode using th[...]

  • Page 6

    Definition of Terms, continued Single-ended A two-wire input or output circuit, Use care when using single-ended connections, in which 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 recommended for configurations requiring long cable ru[...]

  • Page 7

    Unpacking Open the shipping box, which contains: 1 amplifier unit (packed in foam end-caps) 4 ribbon connection cables Fuses 2 AGC- ~ (~-amp) speaker fuse 1 slow-blow (20 amp for 100/120V or 12 amp for 220/240V) line fuse 1 12 VDC output (12 V trigger) cable 1 T-15 Torx wrench 1 packet containing the owner’s reference manual and the warranty regi[...]

  • Page 8

    Placement Before you integrate the KAV-1500 into your system, review the following guidelines to choose the location for the component. This will facilitate a clean, trouble-free installation. The KAV-1500 requires at least two inches (5 cm) of clearance on each side and least two inches (5 cm) of clearance above the component to provide adequate v[...]

  • Page 9

    FIGURE 1 THE KAV-1500 FRONT PANEL KAV- 1500 1 Power Button 2 Power LED[...]

  • Page 10

    Front Panel Description: KAV-1500 See Figure 1 on page 5 1 Power Button Use this button to switch the KAV-1500 power from off to the operational mode and also to switch the 12 VDC output (12 V trigger) on and off. 2 Power LED The blue power LED illuminates when the amplifier is in the operational mode, 6 Krell KAV-1500 Amplifier[...]

  • Page 11

    FIGURE 2 THE KAV-1500 BACK PANEL 3 8 AGC-12 20 23 19 14 9 INPUT---~ / AGC-12 5 10 / r-~ ~ INPUT ~ / 6 11 7 12 KAV-1500 Power Amplifier 21 22 OUTPUT (LIEF’I" SURROUNO) 19 15 1916 1917 AGC42 OUTPUT (LEF’r) 1918 Balanced Inputs 3 Right Surround Input 4 Left Surround Input 5 Center Input 6 Right Input 7 Left Input Single-ended Inputs 8 Right S[...]

  • Page 12

    Back Panel Description: KAV-1500 See Figure 2 on page 7 The KAV-1500 back panel provides connections for all inputs and outputs, remote connection input and output links, and AC power supply. Balanced Inputs 3, 4, 5, 6, 7 Inputs These are the right surround (3), left surround (4), center (5), right (6), and KAV-1500 channel inputs for output device[...]

  • Page 13

    Back Panel Description, continued Fuses 19 AGC-12 Fuses The AGC 12 Volt loudspeaker fuses protect the KAV-1500 against short circuits in loudspeaker output. 20 Line Fuse The line fuse protects the KAV-1500 against short circuits in internal power supplies, Note Fuses must be replaced with the fuse value specified on the KA V-1500 back panel Use a 2[...]

  • Page 14

    Connecting the KAV-1500 Amplifier to Your System INPUT AND OUTPUT CONNECTIONS Follow these steps to connect the KAV-1500 amplifier to your system. 1. Make sure all power sources and components are off before connecting inputs and outputs= 2. Neatly organize the wiring between the amplifier and all system components. Separate AC wires from audio cab[...]

  • Page 15

    The KAV-1500 amplifier is shipped with shorting pins in the XLR inputs. These pins should remain in the XLR inputs if the amplifier is operating in the single-ended mode. When the shorting pin is insert,ed, pins 1 (lower left) and 3 (top) are shorted together. Remove the shorting pins to connect the amplifier for balanced operation. The XLR pin con[...]

  • Page 16

    Optional System Configurations The KAV-1500 can be reconfigured for either Multi Amp Throughput (MAT) or bridged operation. IMPORTANT Removing the cover to reconfigure for MAT or for bridged operation is the ONLY instance you are authorized to remove the cover of ANY Krell component without voiding your Warranty. For more information on product lim[...]

  • Page 17

    FIGURE 3 RECONFIGURING THE KAV-1500 FOR MAT OPERATI()N PC Input Board showing MAT jumper configuration Left To Slow Channel Start J1M 8oard For J For ~,~eff. SurroundJ For~ Right Bridging Surround J6fl J4 N ,,,J5 J7111 J12,, J11,llJ1,II J13,1, J1811 Jr6111 CRj17 I~L~piiTB~5/~ES J~i ’ng J19~ ~J23 ~:0~i~2~ I]J29 IIIJ25 PRC - Permanent ribbon connec[...]

  • Page 18

    Reconfiguring the KAV-1500 for MAT See Figure 3 on page 13 Tools needed: T-15 Torx wrench and four ribbon connection cables 1. Turn the KAV-1500 off by pressing the power button (1) on the front panel. The blue power LED (2) extinguishes. Unplug the AC power cord (23) from AC power. 2. Using the T-15 Torx wrench, remove the 14 screws that secure th[...]

  • Page 19

    FIGURE 4 RECONFIGURING THE KAV-1500 FOR BRIDGED OPERATI( )N Do not attempt to bridge channels in any way other than specified below. Opt I Opt~ Opti°n 2 Right For Center For For Channel Bridging Channel Bridging KRELLINDUSTRIES Bridging J,~ J12fl J11~11(~] ,13~ J18 H J16fl H J17 1"%7BOA05B RD J24N ! Left To Slow For Channel Stad Bridging m Bo[...]

  • Page 20

    BRIDGED OPERATION The KAV-1500 can be reconfigured to bridge four of its amplifier channels to operate as two combined amplifier channels. The bridged amplifier channels each deliver 1,100 Watts into an 8 Ohm load. The unbridged amplifier channel can be connected to a separate loudspeaker. IMPORTANT One channel must remain unbridged. Reconfiguring [...]

  • Page 21

    Connecting the Bridged KAV-1500 See Figure 2 on page 7 Connect the bridged channels as follows: Option 1 1. When the left and right channels are bridged, connect the output cable from the output device to the appropriate balanced (7) or single-ended (12) left channel input. 2. Connect the positive loudspeaker lead (red) to the positive binding post[...]

  • Page 22

    Multi Power Mode Connection Multi power mode is one possible connection scenario using the KAV-1500’s Multi Amp Throughput (MAT) feature. With Multi Power Mode, you can use the KAV-1500 reconfig- ured for MAT to independently power multiple pairs of stereo loudspeakers, to extend the listening environment throughout your home. When the KAV-1500 i[...]

  • Page 23

    Amplifier Operation ON/OFF AND OPERATION When powering up your system, turn amplifiers on last. When powering down your system, turn amplifiers off first. The procedures for amplifier operation follow. 1. Press the power button (1) on the KAV-1500 front panel. The blue power LED (2) illuminates and you hear a click. The amplifier is now ready for o[...]

  • Page 24

    Questions and Answers Q. Should I leave the KAV-1500 amplifier on at all times? A. No. The amplifier does not have a stand-by mode. Leaving it on at all times would result in considerable heat output and power consumption. For best results, turn the amplifier off when not in use, and allow a five minute warm-up after it is switched to the operation[...]

  • Page 25

    Warranty This Krell product has a limited warranty =of five years for parts and labor on circuitry. Should this product fail to per- form at any time dudng 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[...]

  • Page 26

    Return Authorization Procedure If you believe there is a problem with your component, please contact your dealer, dis- tributor, 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://ww[...]

  • Page 27

    Specifications KAV-1500 Five-Channel Amplifier FREQUENCY RESPONSE SIGNAL TO NOISE RATIO "A" WEIGHTED TOTAL HARMONIC DISTORTION (THD) GAIN INPUT IMPEDANCE INPUT SENSITIVITY OUTPUT VOLTAGE OUTPUT POWER, EACH CHANNEL DRIVEN BRIDGED POWER CONSUMPTION INPUTS OUTPUTS DIMENSIONS WEIGHT 20 Hz to 20 kHz +0 dB, -0.2 dB 0.4 Hz to 112 kHz +0 dB, -3 d[...]

  • Page 28

    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 KAV-1500 Five-Channel Power Amplifier v 00.0[...]