KRC-3 REMOTE CONTROL LINE-LEVEL PREAMPLIFIER OWNER’S REFERENCE
TABLE 2 INTRODUCTION 3 UNPACKING AND ASSEMBLY 3 BASIC INSTALLATION 4 INPUT/OUTPUT 5 BASIC PREAMPLIFIER OPERATION 6 OPTIONAL CONFIGURATIONS 8 REMOTE CONTROL CONNECTIONS 10 REAR PANEL DESCRIPTION 11 QUESTIONS AND ANSWERS 12 SPECIFICATIONS 13 WARRANTY AND SERVICE OF CONTENTS
INTRODUCTION Thank you for your purchase of the KRELL KRC-3 remote control preamplifier. KRELLhas built a reputation for blazing the evolutionary path in audio technology. Our new KRC-3 continues this tradition by mating the essential KRELLtechnologies of Class A operation and discrete circuitry with current mode amplification and our High Resolution volume control.
UNPACKING 1. After opening the box and removing the top layer following items will now be visible: 1 1 1 1 1 AND ASSEMBLY of foam, the KRC-3 and the KRC-3 remote control T- 10 Torx wrench AC power cord Owner’s Reference Warranty card NOTE: If any of these items are not included dealer immediately for assistance. please contact your authorized 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.
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 on the KRC-3. and right outputs of your source components to the input The KRC-3 is equipped with four single-ended inputs (S1, $2, S3/proc, and S4/tape) and one balanced input (B1).
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 KRELLCD transport and amplifier controls (see Remote Control page 8 for more information).
BASIC PREAMPLIFIER OPERATION MUTE Front panel: To mute, press the active Remote control: source’s input button. 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: OPTIONAL Press the mute button.
OPTIONAL To enable these options, it is necessary CONFIGURATIONS 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 Lift the cover from the KRC-3. with the supplied T-10 Torx wrench. 3. Find the two switches located toward the front of the board that are labeled 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-3and insert 5.
REMOTE CONTROL NOTE:When a function button on the remote control is pressed, the blue pilot will flash on the KRC-3. When the button is released the flashing stops. LED PREAMPLIFIER FUNCTIONS LEVEL/~ LEVEL ~ Raises volume 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-4/Tape when input is configured as a standard input Selects S-4/Tape when input is configured as a tape monitor PHASE 0 or 180 °, °.
AMPLIFIER FUNCTIONS Turns KRELLAudio Standard or S-Series MTR amplifiers On or Off. Turns KRELLS-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 respond to remote commands. be replaced when the KRC-3 does not readily 1. Remove the four torx screws from the remote control’s back plate. 2. Remove the back plate compartment. 3.
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 One tape output via XLR connectors via RCA connectors MAIN OUTPUTS Single ended RCA output connectors Balanced XLR output connectors XLR input and output pin configuration: Pin 1 Pin 2 Pin 3 Shield (ground) Non-inverting (hot) Inverting 10
QUESTIONS AND ANSWERS Q. When I turn up the volume on the KRC-3 a loud hum is present loudspeakers; what could it be? from the 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.
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 15.5" Deep 3.5" High 47.5 cm Wide 38.75 cm Deep 8.75 cm High WEIGHT: Shipping 28 Ibs. 12.7 kg. Unit only 19 lbs. 8.6 kg.
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 KRELLDealer or Distributor, or on the warranty registration card sent to KRELL.
KRELL 45 Connair Road ¯ Orange, CT 06477 203-799-9954 ¯ Fax: 203-799-9796 Copyright 1995 KRELL P/N 1990061
