Krell reference 64 owners manual

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INTRODUCTION Thank you for your purchase of the Krell REFERENCE 64 Digital-to-Analog Processor and welcome to the Krell family of audio components. Krell is dedicated to the development of technologically advanced components for the reproduction of digitally recorded music. The REFERENCE 64 redefines excel- lence in the Krell tradition of uncompromising performance through leading-edge technology. The REFERENCE 64 is designed to sound wonderful, but to look and function as a world-class, reference-caliber compo- nent. The REFERENCE 64 utilizes all proprietary Krell cir- cuitry. The digital input is decoded by the Krell Data Recovery and Jitter Rejection Module, virtually eliminating jitter and associated clocking errors. To further reduce the potential of clocking errors, the TimeSync linking system allows the REFERENCE 64 to lock and operate with the CD transport's clock output. The data signal is run through four serial Motorola DSP-56001 processors (two per channel, in series) running Krell written software contained within socketed EPROMs. This method allows for simple installation of future software updates. Within the digital section, data is oversampled 64 times. Data then goes through Krell's own custom DAC modules. After conversion is complete, signal is passed through the DC coupled, discrete, complementary Class A output stage. The REFERENCE 64 utilizes separate highly regulated power supplies containing three 50VA toroidal transformers. All power supply circuitry is housed in a sepa- rate chassis, and mechanically linked to ensure proper ther- mal stability. Each digital input in the REFERENCE 64 has its own selection button and direct~ path to the processing stages. Assembly of this product is second to none. Every section is assembled within rigid quality control standards. The REFER- ENCE 64 is a pleasure to use and will bring many years of listening fulfillment. PAGE 2

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INTRODUCTION This Owner's Reference is designed to ensure the clear, trouble free installation of your REFERENCE 64 processor. Basic In- stallation, Operation and Quea{ion and Answer sections are provided. Should you have any questions or comments, please feel free to contact your authorized dealer or the KRELL staff for assistance. In the unlikely event that your REFERENCE 64 should require service, you will be pleased to know that it is backed by a com- prehensive Customer Satisfaction policy and one of the most advanced service facilities in the industry. For detailed infor- mation on the terms and conditions of service, please consult the Warranty and Service section of this Reference, Warranty Registration Card, or an authorized KRELL Dealer/Distributor. PAGE 3