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STUDIO 2
O O 0 0 0 0 0 0 0
STUDIO 2 DIGITAL TO ANALOG PROCESSOR
OWNER’S REFERENCE
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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 through leading-edge technology. To obtain the best performance from your STUDIO 2 Processor, careful attention should be paid to its placement, installa
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....... TABL~ OF CONTENTS UNPACKING INSTRUCTIONS 4 5 PLACEMENT 6 AC POWER CONSIDERATIONS 7 INPUT AND OUTPUT CONNECTIONS i i PROCESSOR OPERATION OPERATING INSTRUCTIONS 13 15 QUESTIONS AND ANSWERS SPECIFICATIONS 18 WARRANTY AND SERVICE INFORMATION 19 PAGE 3
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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 remove the STUDIO 2 from the box. Remove the protective plastic wrap from the Processor. NOTE: Save all packing materials. If you must ship your STUDIO 2 in
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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.) that can create interference and induce hum. 2. As with any high quality component, ensure that the vent openings in the chassis are free from obstructi
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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 grounded and meet or exceed the unit’s power supply rating of 150VA. CAUTION: Do not remove or bypass the ground pin on the end of the AC cord. This may ca
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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 level input of your preamplifier. The STUDIO 2 is equipped with two analog output configurations: Single-ended via RCA connectors and balanced via XLR co
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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 between the Processor and the high level inputs of your preamplifier is maintained. 4. Connect the digital output of your CD transport and other digital
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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 be taken in selecting the type of cable used to link the digital source to your Processor. We suggest the AT&T wide- bandwidth fiber optic cable be us
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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 cable. e. Slide the cable connector into the AT&T receptacle with the key sliding into the designated slot. f. Gently push the connector into place, depressing the int
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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 fiber optic input AT&T TOSH Toshiba fiber optic input XLR Balanced AES/EBU digital input Coaxial input COAX1 Coaxial input or Optional-2nd AT&T ST input COAX 2/ST SYNC INDICATOR When the input signal locks with the Processor, the SYNC LED will illuminate. The input frequency
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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 button. To change back to normal phase, press the 0 DEG button. Utilizing the Phase Switching can, in some instances, restore life to a previously dull soundi
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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 is turned completely to the OFF (lowest volume) position. 3. Turn ON your components, remembering that the last compo- nent to be energized should be your amplifier. The amplifier should only be tu
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’ " ’" 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 them to reach thermal equilibrium. Your installation is now complete. Should you have any further questions which are not covered in the remainder of this Refer- ence,
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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&T format also has the added benefit of substantially higher bandwidth than coax or the standard fiber optic interface. If a coax cable must be used, we sug
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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 connections IN and OUT of the Processor. Is the digital source component powered? Check all power connections. Have you selected the correct source on the
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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, or interconnects which do not have wide enough bandwidth. The second item that causes the Processor to reset is the presence of a transient spike on th
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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" DEEP 2.50" TALL (with feet) SHIPPING WEIGHT 16 pounds PAGE 18
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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 the Sales receipt. Please return the Warranty Card immediately after successful installation and operation are completed. The warranty for Krell produ
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KRELL 35 Higgins Drive Milford CT 06460 SALES (203) 874-3139 FAX (203) 878-8373 © 1993 KRELL DIGITAL (STUDIO29303)
