Krell Industries Digital to Analog Processor STUDIO 2 manual

STUDIO 2 O O 0 0 0 0 0 0 0 STUDIO 2 DIGITAL TO ANALOG PROCESSOR OWNER’S REFERENCE[...]

INTRODUCTION Thank you for your purchase of the Krell STUDIO 2 Digital-to- Analog Processor and welcome to the Krell family of audio components. Krell is dedicated to the development of technologi- cally advanced components for the reproduction of digitally recorded music. The STUDIO 2 continues the Krell tradition of uncompromising performance thr[...]

....... TABL~ OF CONTENTS 4 UNPACKING INSTRUCTIONS 5 PLACEMENT 6 AC POWER CONSIDERATIONS 7 INPUT AND OUTPUT CONNECTIONS i i PROCESSOR OPERATION 13 OPERATING INSTRUCTIONS 15 QUESTIONS AND ANSWERS 18 SPECIFICATIONS 19 WARRANTY AND SERVICE INFORMATION PAGE 3[...]

UNPACKING UNPACKING INSTRUCTIONS 1. Open the box and remove the top layer of foam. The following items will now be visible: STUDIO 2 D/A Processor AC power cord Packet containing the Owner’s Reference and Warranty Card NOTE: If any of these items are not included, please contact your authorized dealer immediately for assistance. 2. Carefully remo[...]

PLACEMENT PLACEMENT Before you install the STUDIO 2 into your system, we recommend that you follow these guidelines in choosing the location. This will facilitate a clean, trouble-free installation. 1. Although well shielded, the STUDIO 2 should not be placed in close proximity to hum-sensitive components (i.e. preamps, turntables, tuners, etc.) th[...]

AC POWER AC POWER CONSIDERATIONS NOTE: While the STUDIO 2 has superb regulation and does not require a dedicated AC circuit, we strongly advise against any connections through extension cords or multiple AC adaptors. High quality 15 amp grounded AC strips are acceptable. High quality AC line conditioners or filters can be utilized if they are groun[...]

CONNECTIONS INPUT AND OUTPUT CONNECTIONS CAUTION: When making connections to this component or any other, make sure the power amplifier is OFF and the preamplifier is in the MUTE or STANDBY mode. 1. Connect the power cord to the back of the STUDIO 2 and plug the unit into the wall AC receptacle. 2. Connect the STUDIO 2 analog output to the line lev[...]

CONNECTIONS 3. The Left and Right channel RCA outputs are labeled on the back panel. The balanced outputs are not labeled. The balanced connector closest to the Left RCA output is for the left channel output and the connector closest to the RCA right output is the right balanced output. Care should be taken to insure that the channel orientation be[...]

CONNECTIONS 5. Once you have completed the necessary input and output connections, select the input of your choice. For each input selected, the corresponding LED will illuminate. When a powered digital input source and the Processor have linked, the SYNC LED will illuminate. DIGITAL SOURCE TO D/A PROCESSOR INTERLINK CONSID ~, ERATIONS Care should [...]

CONNECTIONS How to connect AT&T cables: a. Remove the plastic cover from the outside of the AT&T transmitter (located on Transport) and receiver (located on Pro- eessor). b. Locate the slot on the top of the AT&T receptacle. e. Locate the key on the top of the AT&T cable. d. Remove the plastic cap from both ends of the fiber optic c[...]

OPERATION INPUT SELECT SWITCHING The STUDIO 2 has multiple digital inputs. Each input has its own input switch and direct path to the digital Processor. When an input is selected, the corresponding LED will illuminate. AT&T TOSH XLR COAX1 COAX 2/ST AT&T fiber optic input Toshiba fiber optic input Balanced AES/EBU digital input Coaxial input[...]

OPERATION 0 ° and 180 ° PHASE SWITCHING The absolute output phase of the STUDIO 2 can be changed. In some recordings the master tape was recorded out of phase, creating unusually poor sounding recordings. The STUDIO 2 can shift the absolute output phase 180 ° to correct for this anomaly. To change the phase from 0 ° to 180 °, press the 180 DEG[...]

OPERATION OPERATING INSTRUCTIONS 1. Select an input with the Input switch. Notice the Signal LED will illuminate when the digital source is turned on and has linked with the Processor. Once this link is complete, the Processor is ready to pass a signal. 2. Be sure that your preamplifier volume control completely to the OFF (lowest volume) position.[...]

OPERATION ’ " ’" NOTE: While your STUDIO 2 will perform beautifully from the moment you turn it on, it requires a minimum warm-up period of 8 hours before it begins to show its strongest sonic qualities. It will continue to improve over time. Discrete components are utilized in the analog output stage and the warm-up period allows the[...]

QUESTIONS AND ANSWERS Q. My CD player has both fiber optic and coaxial outputs. Which one should I use? A. Given a choice, we prefer the AT&T optical link due to its ability to completely isolate the grounds between the digital source component and the Processor. This minimizes the possibility of ground loops in the digital components. The AT&a[...]

QUESTIONS AND ANSWERS Q. Do I have to switch the Sampling Frequency when I go between my CD and DAT? A. No. Your STUDIO 2 automatically senses the input frequency and does all necessary switching. Q. I am not getting any sound through the Processor. What could be wrong? A. Most likely there has been a simple mistake in installation. Check all conne[...]

QUESTIONS AND ANSWERS Q. While listening to my STUDIO 2 I experience occasional periods of silence through my speakers. Is my Processor malfunc- tioning? A. Drop outs are caused by two primary reasons. First, drop outs can be caused by data corruption. Corruption in the data may be due to a poor input connection, damaged or dirty source material, o[...]

SPECIFICATIONS FREQUENCY RESPONSE -.3 dB@ 20KHz and at 8Hz SIGNAL TO NOISE > 115dB DIGITAL-TO-ANALOG CONVERTER 18 bit PROCESSING 1 Motorola DSP-56001 Upgradable software contained in socketed EPROM. LINEAt~TY + .3dB at -90dB THD +N .0025% -92dB CHANNEL SEPARATION >_ 109dB ANALOG OUTPUT VOLTAGE 2.00 volts DIMENSIONS 19.00" WIDE 12.50"[...]

WARRANTY AND SERVICE WARRANTY AND SERVICE INFORMATION There are no user-serviceable parts inside the STUDIO 2. The STUDIO 2 has a limited warranty of five years parts and labor. Return freight is included in the warranty. The warranty period begins on the date of purchase and is activated with the return of the enclosed Warranty Card and a copy of [...]

KRELL 35 Higgins Drive Milford CT 06460 SALES (203) 874-3139 FAX (203) 878-8373 © 1993 KRELL DIGITAL (STUDIO29303)[...]