Krell Industries REFERENCE 64 manual Introduction

INTRODUCTION

Thank you for your purchase of the Krell REFERENCE64

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 REFERENCE64 redefines excel-

lence in the Krell tradition of uncompromising performance

through leading-edge technology.

The REFERENCE64 is designed to sound wonderful, but to

look and function as a world-class, reference-caliber compo-

nent. The REFERENCE64 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 REFERENCE64 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 DACmodules. After conversion is complete, signal is

passed through the DC coupled, discrete, complementary

Class A output stage. The REFERENCE64 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 REFERENCE64 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- ENCE64 is a pleasure to use and will bring many years of listening fulfillment.

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