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KRC-3
REMOTE CONTROL LINE-LEVEL
PREAMPLIFIER
OWNER’S REFERENCE
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TABLE OF CONTENTS 2 INTRODUCTION 3 UNPACKING AND ASSEMBLY 3 BASIC INSTALLATION 4 INPUT/OUTPUT CONNECTIONS 5 BASIC PREAMPLIFIER OPERATION 6 OPTIONAL CONFIGURATIONS 8 REMOTE CONTROL 10 REAR PANEL DESCRIPTION 11 QUESTIONS AND ANSWERS 12 SPECIFICATIONS 13 WARRANTY AND SERVICE
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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 Resolution volume control. First developed for our Reference 64 D/A processor, current mode amplification utilizes gain stages that operate exclusively in t
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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. NOTE: Save all packing materials. If you must ship your KRC-3 in the future, repack the unit in its original packing to prevent damage in transit. BASIC IN
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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 equipped with four single-ended inputs (S1, $2, S3/proc, and S4/tape) and one balanced input (B1). The S1 and $2 inputs are standard single-ended inputs
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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 quite unique in that the volume level is indicated by illuminated LEDs around the outside of the level control, not by the physical position of the leve
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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 control: Press the mute button. OPTIONAL CONFIGURATIONS S3/proc: For simplified integration of an A/V surround sound processor, the S3/proc input can be set
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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. Remove the KRC-3 top cover screws with the supplied T-10 Torx wrench. 2. Lift the cover from the KRC-3. Find the two switches located toward the front of the board that are labeled 3. S3/proc and S4/tape. Set the dip switches to the position appropriate for your application. 4, Place the top cover back on the KRC-3 and insert the cover screws. 5. Plug the
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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 Selects B- 1 input Selects S- 1 input S-I S-2 Selects S-2 input S-3 Selects S-3/Proc input S-4 Selects S-4/Tape when input is configured as a standard input TAPE Selects S-4/Tape when input is configured as a tape monitor PHASE 0 or 180 °, LED °. illuminates
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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 not readily respond to remote commands. Remove the four torx screws from the remote control’s back plate. 1. 2. Remove the back plate to expose the bat
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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) Inverting Pin 3 10
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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 top or directly below the KRC-3. You could also be experiencing a ground loop in the system. Put a 3 prong to 2 prong AC adapter (cheater plug) on th
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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: Unit: 19.0" Wide 47.5 cm Wide 15.5" Deep 38.75 cm Deep 3.5" High 8.75 cm High WEIGHT: Shipping 28 Ibs. 12.7 kg. Unit only 19 lbs. 8.6 kg. All operational features, fu
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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 registration card sent to KRELL. In the event adequate proof of purchase date is unavailable, the warranty period will begin on the date the unit was or
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KRELL 45 Connair Road ¯ Orange, CT 06477 203-799-9954 ¯ Fax: 203-799-9796 Copyright 1995 KRELL P/N 1990061
