A. INTRODUCTION Thank you for your purchase of the KRELL KRC-2. remote control preamplifier. The KRC-2combinesthe latest eV.olutionsin preamL~lifiertechnologywith a radical approacla to remotecontrol circuitry. The-KRC-2 is part oI" a newgener.ation, of KRELL products where convenience is united witla exceptionalsonic quality. To obtain the best performance.fromyour KRC-2,carefu.1 attention sh.ould be paid to its placement,installation anti operation. A thor~oughunderstandingof these detail.
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C. UNPACKING AND ASSEMBLY 1. Openthe box and removethe top layer of foam. The KRC-2and following items will nowbe visible: KRC-2remote control Warranty card AC power cord Owner’s Reference NOTE: If any of these items are not included please contact your authorized dealer immediatelyf6r assistance. 3. Removethe plastic bag from the preamplifier and remote control. NOTE: Save all packingm.ate.rials. If you .
D. BASIC INSTALLATION AND OPERATION 1. Place the unit on a firm level surface free fromexcessive dirt or moisture..The KRC-2 is not particularly hum sensitive, therefore other componentscan be placed on or around the KRC-2. 2. If you are using the separate. KPEph.onostage with the KRC-2,the following connections apply: NOTE:If you are not using the KPEproceed to step 3. a. Unplugthe KRC-2from the wall ACreceptacle. b. Locate the 9 pin DCpower connector labeled KPE POWER. c.
E. INPUT AND OUTPUT CONNECTIONS CAUTION:When making connections to this component or any other, makesure tlie power amplifier is OFF. CAUTION: Makesure 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 components t.o the inputs on the KRC-2.The KRC-2is equipped with 4 single-ended inputs., 2 balanced capable inputs, a single ended tape input and tape output.
REAR PANEL DESCRIPTION INPUTS Four single-ended inputs via standard RCAconnectors S1 $2 $3 $4 Twobalanced inputs via standard XLRconnectors B1 B2 TAPE Tape input via standard RCAconnectors TAPE OUTPUT Record via RCAconnectors MAIN OUTPUTS Single-ended RCAoutput connectors Balanced XLRoutput connectors XLRinput and output pin configuration p!n 1 Ground(shield) p!n 2 0 degrees (non-inverting) pin 3 180 ~egrees (inverting) 7
F. BASIC PREAMPLIFIER OPERATION TheKRC-2has the flexibility of a remote controlled device but does not require special attention in order to . perform simple functions. Tile KRC-2will function much fike other K/ell preamplifiers.Theunit can be operated fromthe front panel controls or via the remotecontrol. All functions available on the front panel can also be accomplishedfrom the KRC-2remote control. This gives you. the ability to sit in yourfavorite listening position and control aI1 preamphfierfunctions.
Basic Operation: 1. Press the Mutebutton briefly on the KRC-2. 2. Turn the volumecontrol fully counterclockwiseto the Off position, no LED’silluminated. 3. Turn the poweramplifier On. 4. Choosea listening source and .select that input by pushing the corresponding input button on the KRC-2. 5. Start play of the source. 6. Slowlyturn _ the volumecontrol clockwise until you reach a comtortablelistening level. 7. Whenchangingsources, return to the Mu.teposition and or lower the volume.
FRONT PANEL DESCRIPTION INPUT SELECTION S1 $2 $3 B1 B2 selects selects selects selects selects S 1 input $2 input $3 input B 1 input B2 input FUNCTIONS TAPE selects Tapei~nput and allows monitoringot Tapereturn.
G. REMOTE CONTROL 1. Whena function button on the remote control is ~ssed, thebutton blue pilot LEDwill flash onstops. the KRC-2. en the is released the flashing 2.
H. OUESTIONS AND ANSWERS .Q. WhenI turn up the volumeon the KRC-2a loud hum is present from ttie loudspeakers.Whatcould it be? A. Humcan be caused by_ several different disturbances. Checkto makesure all of the cables in and out of the KRC-2are sound and making proper contact. Makesure there are~no power supplies orhuminducing components on top ot or directly belowthe KRC-2. Youalso could be experiencing a groundloop in the system. A ground loop can be ca.used whe.n several.
Q. Whydo I have. to turn up the volumeso high to get musicat a normallistening level? A. If your system does not seem.to have enoughgain over all, youare probab~lynot utilizing the balancedinput or output capabihties ot the KRC-2.For every balanced termination on the KRC-2yo.u increase the gain by 6dB. If youstill haveto increase tlae gain too far, makesure the KRC-2is in the HIGHgain position. . I camehomeone evening and the pilot LEDin the ~RC-2 was not illuminated. Whatstiould I do? A.
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.
J. WARRANTY AND SERVICE INFORMATION There are no user-serviceable parts inside the KRC-2.The KRC-2 has a limitecl warrantyof fiv.e years parts and labor. Returnfreight is included in tlae warranty. The warranty,per!od, begins on ~the date of purchaseand is activated witla tlae return ot the enclosedWarra.ntyCard and a copyof the Sales receipt. Please return tlae warranty cardimmediatelyafter successful installation and operation are completed. The warranty for Krell products is valid ~ in t.
l l 1 KRELL INDUSTRIES I 45 Connair Orange, Ct 06477-3650 Road USA
