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Krell Industries Preamplifier KRC 2 manual

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Table of contents for the manual

  • Page 1

    [...]

  • Page 2

    A. INTRODUCTION Thank you for your purchase of the KRELL KRC-2. remote control preamplifier. The KRC-2 combines the latest eV.olutions in preamL~lifier technology with a radical approacla to remote control circuitry. The-KRC-2 is part oI" a new gener.ation, of KRELL products where conve- nience is united witla exceptional sonic quality. To obt[...]

  • Page 3

    B. TABLE OF CONTENTS 4 5 6 8 10 11 14 15 UNPACKING AND ASSEMBLY BASIC INSTALLATION AND OPERATION INPUT AND OUTPUT CONNECTIONS BASIC PREAMPLIFIER OPERATION REMOTE CONTROL QUESTIONS AND ANSWERS SPECIFICATIONS WARRANTY AND SERVICE INFORMATION 3[...]

  • Page 4

    C. UNPACKING AND ASSEMBLY 1. Open the box and remove the top layer of foam. The KRC-2 and following items will now be visible: KRC-2 remote control Warranty card AC power cord Owner’s Reference NOTE: If any of these items are not included please contact your authorized dealer immediately f6r assis- tance. 3. Remove the plastic bag from the preamp[...]

  • Page 5

    D. BASIC INSTALLATION AND OPERATION 1. Place the unit on a firm level surface free from exces- sive dirt or moisture..The KRC-2 is not particularly hum sensitive, therefore other components can be placed on or around the KRC-2. 2. If you are using the separate. KPE ph.ono stage with the KRC-2, the following connections apply: NOTE: If you are not u[...]

  • Page 6

    E. INPUT AND OUTPUT CONNECTIONS CAUTION: When making connections to this component or any other, make sure tlie power amplifier is OFF. CAUTION: Make sure all cable terminations are of the highest quality, free from frayed ends, shorts or cold solder joints. 1. Connect t.he left and right outputs of your source com- ponents t.o the inputs on the KR[...]

  • Page 7

    REAR PANEL DESCRIPTION INPUTS Four single-ended inputs via standard RCA connectors S1 $2 $3 $4 Two balanced inputs via standard XLR connectors B1 B2 TAPE Tape input via standard RCA connectors TAPE OUTPUT Record via RCA connectors MAIN OUTPUTS Single-ended RCA output connectors Balanced XLR output connectors XLR input and output pin configuration p[...]

  • Page 8

    F. BASIC PREAMPLIFIER OPERATION The KRC-2 has the flexibility of a remote controlled device but does not require special attention in order to . perform simple functions. Tile KRC-2 will function much fike other K/ell preamplifiers.The unit can be operated from the front panel controls or via the remote control. All functions available on the front[...]

  • Page 9

    Basic Operation: 1. Press the Mute button briefly on the KRC-2. 2. Turn the volume control fully counterclockwise to the Off position, no LED’s illuminated. 3. Turn the power amplifier On. 4. Choose a listening source and .select that input by pushing the corresponding input button on the KRC-2. 5. Start play of the source. turn 6. Slowly _ the v[...]

  • Page 10

    FRONT PANEL DESCRIPTION INPUT SELECTION S 1 selects S 1 input $2 selects $2 input $3 selects $3 input B 1 selects B 1 input B2 selects B2 input FUNCTIONS TAPE selects Tape i~nput and allows monitoring ot Tape return. PHASE Inverts absolute polarity of the main output LED illuminates when phase is reversed 180 degrees when GAIN MUTE BALANCE < BAL[...]

  • Page 11

    G. REMOTE CONTROL 1. When a function button on the remote control is ~ssed, the blue pilot LED will flash on the KRC-2. en the button is released the flashing stops. 2. The functions of the remote control are described below: UP arrow DOWN arrow volume higher volume lower S 1 selects S 1 input $2 selects $2 input $3 selects $3 input $4 selects $4 i[...]

  • Page 12

    H. OUESTIONS AND ANSWERS .Q. When I turn up the volume on the KRC-2 a loud hum is present from ttie loudspeakers. What could it be? A. Hum can be caused by_ several different disturbances. Check to make sure all of the cables in and out of the KRC-2 are sound and making proper contact. Make sure there are~no power supplies orhum inducing components[...]

  • Page 13

    Q. Why do I have. to turn up the volume so high to get music at a normal listening level? A. If your system does not seem .to have enough gain over all, you are probab~ly not utilizing the balanced input or output capabihties ot the KRC-2. For every balanced termination on the KRC-2 yo.u increase the gain by 6dB. If you still have to increase tlae [...]

  • Page 14

    I. SPECIFICATIONS GAIN 6dB orl 2dB SIGNAL-TO-NOISE < ,95 dB unweighted THD 1K < 0.02% 20K < 0.02% INPUT IMPEDANCE 47,000 ohms(47K) OUTPUT IMPEDANCE 10 ohms OUTPUT VOLTAGE 16 volts R.M.S. DIMENSIONS 19.0" WIDE 14.5" DEEP 2.75" HIGH with feet WEIGHT Unit only 20 pound_s packed 26 pounds 14[...]

  • Page 15

    J. WARRANTY AND SERVICE INFORMATION There are no user-serviceable parts inside the KRC-2. The KRC-2 has a limitecl warranty of fiv.e years parts and labor. Return freight is included in tlae warranty. The warranty, per!od, begins on ~the date of purchase and is activated witla tlae return ot the enclosed Warra.nty Card and a copy of the Sales recei[...]

  • Page 16

    l l 1 KRELL INDUSTRIES I 45 Connair Road Orange, Ct USA 06477-3650[...]