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A. INTRODUCTION Thank you for your.purchase of the Krell STEALTH Advanced One-Bit Digital to Analog Converter and welcome to the Krell family of audio compo.n.ents. You have joined a select group of discriminating listeners who enjoy the finest in music reproduction. Krell ,D, igital is dedicated to the d~evelopment of techno~- 1.o.gicady advanced components tor the reproductio.n ot digitally recorded music. These designs continue the Krell tradition of uncompromising performance through leading
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B. TABLE OF CONTENTS UNPACKING INSTRUCTIONS 3 4 BASIC INSTALLATION AND OPERATION INPUT AND ~UTPUT CONNECTIONS 5 7 PROCESSOR OPERATION AND DIGITAL TAPE LOOP 9 QUESTIONS AND ANSWERS 11 FRONT AND REAR PANEL DESCRIPTIONS 12 SPECIFICATIONS 14 WARRANTY AND SERVICE INFORMATION 2
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C, UNPACKING INSTRUCTIONS 1. Open the box and remove the top layer of foam. The following items will now be visible: STEALTH D/A Converter AC power cord PacKet containing the Owners Reference and warranty card NOTE: If any of these items are not included please contact your authorized dealer immediately f6r assis- tance. 2. Carefully remove the unit and accessories from the box and remove the protective plastic wrap from the unit. NOTE: Save all packing mater.ial.s. If you must ship y.our STEALT
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D. BASIC INSTALLATION AND OPERATION Before you install the STEALTH into your sy.stem we recommend that you follow these g.uidelines in choosing’ the location. This will facilitate a clean, trouble-free installation. CAUTION: When making connections to this component or any other, make sure tlie power amplifier is OFF and the preamplifier is in the MUTE or STANDBY mode. 1. Although well shielded, the processor should not be p.laced in close proximity to hum-sensitive components ~i.e. preamps, tur
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E. INPUT AND OUTPUT CONNECTIONS 1. Connect the Stealth analog output to the line level input of your preamplifier. The STEALTH is equipped with two output configura- tions: Single-ended via RCA connectors and Balanced via XLR connectors. If your pr.eamplifier has high lev~ balanced inputs we recommencl the balanced outputs ot t~.e processor b.e us.ed. There are considerable sonic ben- efits associatecl witt~ the use of this type of interconnec- tion..H.igh quality tri-axial cable should be used
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NOTE: If the digital source is ON and the signal LED does not illuminate, check to make sure the digital inter- connect cable is secure at both ends or is not.in need of repair. NOTE: Care should be taken in selecting the type of cable used to link the digital source to your processor. If coaxial cable is to be..~used, it should be non-capacitive and have a bandwid~Sn excess of 10MHZ to prevent drop-out errors. NOT.E: If an optical cable is selected we strongly re,com- mencl that it be a high qu
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F. PROCESSOR OPERATION AND DIGITAL TAPE LOOP 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 com- plete the processor is ready to pass a signal. 2. Be sure that your preamplifier’s volume control is completely turned to the OFF (lowest volume) position. 3. Turn ON your components, remembering that the last component to be energized should be your amplifier. The amplifier shou
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STEALTH FEATURES DIGITAL TAPE LOOP The Tape output is used as a direct digital output for a digital recording system. The digital source you wa.nt to re.cord is selected by:the Input switch. To listen to the clig~ital source select S:ource on the Source/Monitor. switch. To listen.to th6 Tape output during or after the. recording select Monitor on the Source/Monitor switcla. NOTE: The Tape input can also be used as an additional source input. CAUTION: The Tape output is a dig!tal signal and can n
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G. QUESTIONS AND ANSWERS Q. My CD player has both fibre 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 isolat,e the grounds between the digital source component anti the Processor. This minimizes the possibifity of ground loops in the digital components. The optional AT&T format also has the added benefit of substantially higher bandwidth than coax or the standard fibre optic interface.. Q. Will I damage my S
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Q. I have some very fine audiophile interconnect cable which has superior sonic characteristics. Can I use this ¯ for my coaxial digital input? A. You may experiment with any high quality cable. Do note, that most audio interconnect cable is not designed " to carry the ultra high frequency information of the digi- tal bit stream. NOTE: For the STEALTH, we recommend non-capaci- tive coaxial cable which has a bandwidth in excess of 10MHZ and excellent shielding properties. Q. While listening to my
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H. FRONT AND REAR PANEL DESCRIPTIONS 1. FRONT PANEL a. Input Selection: Coax 1 Coaxial input Coaxial input Coax 2 Optics Standard fibre optic input XLR Balanced digital-input or (Optional)AT&T. fibre optic input; shares XLR input switch setting b. Source and Monitor selection: Source Plays the selected input Monitor Plays the source connected to the Digital Tape Input c. Analog Balanced Output Phase selection: 0 degree In phase 180 degree Out of phase 2. REAR PANEL b. Digital Inputs: Coaxial Inp
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I. SPECIFICATIONS FREQUENCY RESPONSE 20Hz-20KHz +/- ldB SAMPLING FREQUENCY 8 Times over sampling DIGITAL TO ANALOG CONVERTER 18 Bit ANALOG OUTPUT VOLTAGE 2.1 volts R.M.S. DIMENSIONS 19" Wide 12" Deep 2.375" High WEIGHT 13 pounds, unit only 20 pounds, shipping weight 12
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¯ 1. WARRANTY AND SERVICE INFORMATION There are no user-serviceable parts inside the STEALTH: The STEALTH has a limited warranty of fiveyears parts and labor on electronic parts including return freight. The warranty, per!od, begins on ~the date of-purchase and is activatecl witla tlae retUrn ot the enclosed Warranty Card and a copy of the Sales receipt. Please return the com- pleted warranty card immediately after successful instal- lation and operation are completed. The warranty for Krell pro
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I 0 I 0 DIGITAL INC. KRELL DIGITAL INC. / 35 HIGGINS DRIVE MILFORD CT 06460 SALES 203-874-3139 FAX 203-878-8373 COPYRIGHT 1991 KRELL DIGITAL INC. (STEALTH9112)
