Krell Industries Explore the Features and Setup of Krell Stereo Power Amplifiers

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Introduction

Thank you for your purchase of the Krell KAV–2250 Stereo Power Amplifier or the KAV– 3250 Three-channel Power Amplifier.

The KAV–2250 and KAV–3250 amplifiers provide substantial two- and three-channel output power that delivers realistic music reproduction at an exceptional value. These amplifiers can be customized with two optional system configurations: Multi Amp Throughput (MAT) and bridged operation. These configurations provide a wider range of power outputs and connection options. Both the KAV–2250 and KAV–3250 amplifiers have balanced and single-ended inputs, for complete compatibility with other components. The KAV–2250 and KAV–3250 amplifiers can be operated using the 12 VDC trigger on other components. Either amplifier integrates seamlessly into home theater or whole-house systems.

This reference manual contains important information on placement, installation, and operation of the KAV–2250 and KAV–3250 amplifiers. Please read this information carefully. A thorough understanding of these details helps ensure satisfactory operation and long life for your amplifier and related system components.

Krell KAV–2250 and KAV–3250

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Contents Instructions for Use Owner’s Reference Stereo Power AmplifierThree-channel Power Amplifier KAV-2250 Stereo Power Amplifier Contents KAV-2250 Front Panel IllustrationsIntroduction Input and Output Connections ConfigurationsDefinition of Terms Definition of Terms OperationTechnology Unpacking AC Power Guidelines PlacementSpecifications Power CordKAV-2250 Front Panel Power Indicator Power ButtonFront Panel Description Stand-by LEDKAV-2250 Back Panel Back Panel Description Reconfiguration Options for the KAV-2250 and the KAV-3250Inputs OutputsBack Panel Description Connecting the Amplifier to Your System Connecting the Amplifier Amplifier Operation Using a Dedicated Wall SwitchON/OFF and Operation Off firstTroubleshooting System Noise To Safely Access the Input Switch Banks Reconfiguration Options for the KAV-2250 and KAV-3250Amplifier Factory Default Settings Reconfiguring the KAV-2250 for MAT Operation Reconfiguration Options Amplifier Factory Default SettingsReconfiguring the Amplifier for MAT Operation Not illustrated Reconfiguring the KAV-2250 for Bridged Operation Connecting the Amplifier Reconfigured for MAT Reconfiguring the Amplifier for Bridged OperationLoudsp Connecting the Amplifier to Your System Questions and AnswersIf you have purchased your Krell product outside the U.S.A WarrantyTo contact the Krell Service Department Return Authorization ProcedureKAV-2250 SpecificationsKAV-3250 KAV-2250