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Krell Industries KAV-400xi - User Manual

Krell Industries KAV-400xi
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THE LEADER IN AUDIO ENGINEERING
KAV–400xi
Remote Control
Integrated Amplifier
Instructions for Use
Owner’s Reference
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Summary

Unpacking Your Krell Amplifier

Unpacking Procedure Steps

Steps include opening the box, removing foam, lifting the unit, and removing protective wrapping.

Amplifier Placement Guidelines

AC Power Connection Guidelines

Use dedicated circuits or high-quality grounded strips; avoid extension cords. Use supplied power cord.

Front Panel and Remote Control Overview

Power Controls and Indicators

Describes the power button, blue power LED, red stand-by LED, and infrared sensor.

Analog Input Selection Controls

Details buttons for selecting analog sources (balanced/single-ended) and tape functions.

Front Panel and Remote Control Details

Volume and Display Controls

Describes the level knob/keys for output adjustment and the front panel display.

Remote Control Operations

Remote Power and Input Commands

Details the 'Pre Key' for accessing amplifier commands and the 'Pre' button for input selection.

Back Panel Connections Overview

Loudspeaker and Analog Outputs

Describes binding posts for loudspeakers and single-ended tape/preamp outputs via RCA connectors.

Analog Input Connectivity

Details balanced (XLR) and single-ended (RCA) analog inputs, including tape inputs.

Back Panel Power and Fuse Details

Power Connections and Fuses

Describes the IEC connector, line fuse, and AGC 8 loudspeaker output fuses.

Connecting to Your Audio System

System Connection Steps

Step-by-step guide for connecting loudspeaker cables, source components, and power.

Operating the Krell Amplifier

Basic Amplifier Operation

Overview of input selection, volume control, and remote functions for operation.

Amplifier Operation Precautions

Exercise care with power output; mute or attenuate volume when switching sources to avoid transients.

Powering On and Off

Procedure for switching between stand-by and operational modes, and system power-up/down sequence.

Amplifier Operation Details

Amplifier Power Sequence

Detailed steps for turning the amplifier on and off, including LED indicators.

Source Switching Caution

Lower volume or mute when changing sources to prevent damage from high output transients.

Optional Configurations

Theater Throughput Setup Precautions

Set source level to zero, avoid sources without level controls, turn off before configuring.

Troubleshooting System Noise

System Noise Troubleshooting Steps

Checks cable terminations, interconnects, and suggests contacting Krell for ground loop issues.

Frequently Asked Questions

Troubleshooting Hum Issues

Guide to checking connections and identifying potential ground loops causing hum.

Return Authorization Procedure

Product Specifications

Output Power Ratings

Provides output power ratings: 200 W at 8 Ohms, 400 W at 4 Ohms.

Krell Industries KAV-400xi Specifications

KAV-400xi

Audio Performance IconAudio Performance
frequency response20 Hz–20 kHz +0 dB, -0.07 dB
signal-to-noise ratio99 dB "A" weighted
total harmonic distortion1 kHz <0.04%, 20 kHz <0.25%
Input/Output Specifications IconInput/Output Specifications
input sensitivity0.644 Vrms
input impedance47 kOhms
output impedance0.17 Ohms
Power Consumption IconPower Consumption
power consumption idle20 W
power consumption max1, 800 W
transformer750 VA

KAV–400xi

Output Specifications IconOutput Specifications
output voltagePeak to peak 138 V
output power 8 ohms200 W
output power 4 ohms400 W
Dimensions and Weight IconDimensions and Weight
dimensions17.3w x 3.5h x 17d in., 50w x 8.9h x 43.2d cm
weight shipped36.0 lb., 16.4 kg
weight unit only31.0 lb., 14.1 kg

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