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Krell Industries KAV-250a manual

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Table of contents for the manual

  • Page 1

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  • Page 2

    KAV-250a Amplifier CONTENTS KrelP Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 FAX 203-799-9796 E-MAIL krell @ krellonline.com INTRODUCTION UNPACKING PLACEMENT Cabinetry Considerations AC Power Guidelines CONNECTING THE KAV-250a TO YOUR SYSTEM Input and Output Connections Linking Multiple Amplifiers Configuring the KA[...]

  • Page 3

    CE Marking This product complies with the EMC direc- tive (89/336/EEC) and the low-voltage directive (73/23/EEC). Introduction Thank you for your purchase of the Krell KAV-250a. To obtain the best performance from your KAV-250a amplifier, pay careful attention to its placement, installation, and operation. A thorough understanding of these details [...]

  • Page 4

    Placement, continued be placed as close to the speakers as pos- sible. Run long balanced interconnect cables to the amplifier and keep the speak- er cable length to a minimum. Speaker cable adds impedance to the load the amplifier must drive, regardless of the cable’s gauge. All Krell amplifiers will drive the lowest impedances with ease, but whe[...]

  • Page 5

    minimize sonic loss but also have immu- nity to induced noise, especially for instal- lations using long cable lengths..Balan- ced connections have 6dB more gain than single-ended connections. When level matching is critical, keep this speci- fication in mind. WARNING Use only one set of inputs to the amplifier at a time. The KAV-250a amplifier is [...]

  • Page 6

    Configuring the KAV-250a for Bridged Operation The KAV-250a may be configured to operate in a bridged mode. When bridged, the amplifi- er will deliver 1000 watts to an 8 ohm load. To implement this configuration: 1. Turn the KAV-250a off. 2. Locate the red switch on the back of the amplifier and slide it from the NORMAL position to the BRIDGED posi[...]

  • Page 7

    Amplifier Operation It is easy to understand the operation of the KAV-250a amplifier. However, great care needs to be exercised when operating a sys- tem that includes the KAV-250a, because of the amplifier’s enormous power output. Switching between active sources without muting the preamplifier output, or bump- ing/miscuing a cartridge, can gene[...]

  • Page 8

    Warranty Krell ® warrants this product to be free from defects in material or workmanship for a period of five years for circuitry and three years for all mechanical components from the original date of purchase. 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 fort[...]

  • Page 9

    Return Authorization Procedure IMPORTANT: If you befieve thero is a prob- lem with your unit, please contact your deal- er, distributor, or the Krell factory immedi- ately Do not return any unit to KrelP for repair without first discussing the problem and obtaining a Return Authorization Number. To return a product, the owner is required to: ¯ Obt[...]

  • Page 10

    Krell ® Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 FAX 203-799-9796 E-MAIL krell @ krellonline.com Specifications FREQUENCY RESPONSE 20Hz-20KHz .4Hz-170KHz KAV-250a +0.0, -0.1 dB +0.0, -3.0dB OUTPUT POWER, each channel driven 8 ohms 1,000W (bridged) 8 ohms 250 W SIGNAL TO NOISE RATIO -118dB "A" weighted D[...]