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Krell Industries KRC-3 manual

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Table of contents for the manual

  • Page 1

    KRC-3 REMOTE CONTROL LINE-LEVEL PREAMPLIFIER OWNER’S REFERENCE[...]

  • Page 2

    TABLE OF CONTENTS 2 3 3 4 5 6 8 10 11 12 13 INTRODUCTION UNPACKING AND ASSEMBLY BASIC INSTALLATION INPUT/OUTPUT CONNECTIONS BASIC PREAMPLIFIER OPERATION OPTIONAL CONFIGURATIONS REMOTE CONTROL REAR PANEL DESCRIPTION QUESTIONS AND ANSWERS SPECIFICATIONS WARRANTY AND SERVICE[...]

  • Page 3

    INTRODUCTION Thank you for your purchase of the KRELL KRC-3 remote control preamplifier. KRELL has built a reputation for blazing the evolutionary path in audio technology. Our new KRC-3 continues this tradition by mating the essential KRELL technologies of Class A operation and discrete circuitry with current mode amplification and our High Resolu[...]

  • Page 4

    UNPACKING AND ASSEMBLY 1. After opening the box and removing the top layer of foam, the KRC-3 and the following items will now be visible: 1 KRC-3 remote control 1 T- 10 Torx wrench 1 AC power cord 1 Owner’s Reference 1 Warranty card NOTE: If any of these items are not included please contact your authorized dealer immediately for assistance. NOT[...]

  • Page 5

    INPUT AND OUTPUT CONNECTIONS CAUTIONS: When making connections to this or any other component, make sure all components are OFF. Make sure all cable terminations are of the highest quality, free from frayed ends, shorts, or cold solder joints. 1. Connect the left and right outputs of your source components to the input on the KRC-3. The KRC-3 is eq[...]

  • Page 6

    BASIC PREAMPLIFIER OPERATION The KRC-3 provides basic input selection and volume control operation from the front panel. The remote control includes additional preamplifier functions as well as KRELL CD transport and amplifier controls (see Remote Control page 8 for more information). NOTES ON THE VOLUME CONTROL The level control on the KRC-3 is qu[...]

  • Page 7

    BASIC PREAMPLIFIER OPERATION MUTE Front panel: To mute, press the active source’s input button. Remote control: Press the mute button. Front panel: To unmute the KRC-3, press the active source’s input button again. If the source is changed while the KRC-3 is muted, press the new source’s input button a second time to unmute the KRC-3. Remote [...]

  • Page 8

    OPTIONAL CONFIGURATIONS To enable these options, it is necessary to remove the top cover of the KRC-3. 1. Unplug the KRC-3 from the AC outlet. 2. Remove the KRC-3 top cover screws with the supplied T-10 Torx wrench. Lift the cover from the KRC-3. 3. Find the two switches located toward the front of the board that are labeled S3/proc and S4/tape. Se[...]

  • Page 9

    REMOTE CONTROL NOTE: When a function button on the remote control is pressed, the blue pilot LED will flash on the KRC-3. When the button is released the flashing stops. PREAMPLIFIER FUNCTIONS LEVEL/~ Raises volume LEVEL ~ Lowers volume B-1 S-I S-2 S-3 S-4 TAPE Selects B- 1 input Selects S- 1 input Selects S-2 input Selects S-3/Proc input Selects S[...]

  • Page 10

    AMPLIFIER FUNCTIONS Turns KRELL Audio Standard or S-Series amplifiers On or Off. MTR Turns KRELL S-Series amplifiers bias level meters On or Off and cycles through KRELL Audio Standard meter functions. NOTE: The B2 and GAIN buttons are not functional with the KRC-3. BATTERY INSTALLATION NOTE: Batteries (AAA) should be replaced when the KRC-3 does n[...]

  • Page 11

    REAR PANEL DESCRH~ION INPUTS Four single-ended inputs via RCA connectors S-1 S-2 S-3/proc S-4/tape One balanced input via XLR connectors One tape output via RCA connectors MAIN OUTPUTS Single ended RCA output connectors Balanced XLR output connectors XLR input and output pin configuration: Pin 1 Shield (ground) Pin 2 Non-inverting (hot) Pin 3 Inver[...]

  • Page 12

    QUESTIONS AND ANSWERS Q. When I turn up the volume on the KRC-3 a loud hum is present from the loudspeakers; what could it be? A. Hum can be caused by several different disturbances. Check to make sure all of the cables into and out of the KRC-3 are sound and making proper contact. Make sure there are no power supplies or hum inducing components on[...]

  • Page 13

    SPECIFICATIONS GAIN: 6.5dB SIGNAL TO NOISE: >98dB; "A" weighted FREQUENCY RESPONSE: 20 Hz to 20 KHz, +/-0.05dB .3 Hz to 300 KHz, +/-3dB THD: <0.009%, 20Hz to 20 KHz INPUT VOLTAGE TO OVERLOAD: 8.5V RMS INPUT IMPEDANCE: 47,500 Ohms (47.5 K Ohm) OUTPUT IMPEDANCE: 15 ohms OUTPUT VOLTAGE: 9 V/18 V RMS (single-ended/balanced) DIMENSIONS: [...]

  • Page 14

    WARRANTY AND SERVICE NOTE: Warranty does not apply to damage caused by acts of God or nature. The KRC-3 has a limited warranty and transferable warranty of five years for parts and labor. The warranty begins on the date of retail purchase, as noted on the retail sales slip provided by an authorized KRELL Dealer or Distributor, or on the warranty re[...]

  • Page 15

    KRELL 45 Connair Road ¯ Orange, CT 06477 203-799-9954 ¯ Fax: 203-799-9796 Copyright 1995 KRELL P/N 1990061[...]