Krell Industries Evolution 505 User Manual

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Krell Industries Evolution 505 User Manual

EVOLUTION

E V O L U T I O N 5 0 5 S A C D / C D P L AY E R

OWNER’S REFERENCE

Evolution 505 SACD/CD Player

Owner’s Reference, v06.0

Krell Industries, Inc.

TEL 203-298-4000

FAX 203-891-2028

45 Connair Road

E-MAIL sales@krellonline.com

Orange, CT 06477-3650 USA

WEBSITE http://www.krellonline.com

 

This product complies with the EMC directive (89/336/EEC) and the low-voltage directive (73/23/EEC).

IMPORTANT SAFETY INSTRUCTIONS

1.Read Instructions.

2.Keep these Instructions.

3.Heed all Warnings.

4.Follow all Instructions.

5.Do not use this apparatus near water.

6.Clean only with dry cloth.

7.Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

8.Unplug this apparatus during lightning storms or when unused for long periods of time.

9.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as a power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

10.Caution: Visible and invisible laser radiation. When the cover is open, avoid exposure to the beam. This apparatus employs a laser. To prevent possible eye injury, only a qualified service

person should remove the cover, or attempt to service this apparatus. Use of controls or adjustments or performance of procedures other than specified herein may result in hazardous laser radiation exposure.

11.The apparatus must be placed on a firm, level surface where it is not exposed to dripping or splashing.

12.The ventilation grids on the top of the apparatus and the space underneath it must be unobstructed at all times during operation. Do not place flammable material above or beneath the apparatus.

13.Before making connections to the Evolution 505, ensure that the power is off and other components are in mute or stand-by mode. Make sure all cable terminations are of the highest quality, free from frayed ends, short circuits, or cold solder joints.

14.THERE ARE NO USER SERVICEABLE PARTS INSIDE AN EVOLUTION 505 SACD/CD

PLAYER.

Please contact Krell if you have questions not addressed in this guide.

This product is manufactured in the United States of America. Krell® is a registered trademark of Krell Industries, Inc., and is restricted for use by Krell Industries, Inc., its subsidiaries, and authorized agents. Evolution Bias™ is a trademark of Krell Industries, Inc. and is a Krell technology based on U.S. Patent No. 5,331,291. CAN Link™, CAST™, Evolution CAST™, and Krell Current Mode™ are trademarks of Krell Industries, Inc. All other trademarks are registered to their respective companies.

© 2006 by Krell Industries, Inc. All rights reserved

P/N 309405-W

 

 

Contents

List of Tables and Illustrations, page 4

A Letter from Dan D’Agostino, page 5

SECTION ONE: Evolution 505 Features and Technology, page 6

Features, Revolutionary Krell CAST Technology,

Definition of Terms

SECTION TWO: Unpacking and Placement, page 11

Opening the Evolution 505 Shipping Carton, Placement, AC Power Guidelines

SECTION THREE: Anatomy of the Evolution 505, page 13

Front Panel Description, Remote Control Description, Battery Installation and Removal, Back Panel Description

SECTION FOUR: Connecting the Evolution 505 to Your System, page 22

Using Balanced Connections, Connection Steps

SECTION FIVE: Evolution 505 Operation, page 24

Power On, How to Play a Disc, Disc Formats, Data Disc, Filter, Repeat Functions, 12 VDC Trigger, RS-232 Port

WARRANTY, page 28

RETURN AUTHORIZATION PROCEDURE, page 30

SPECIFICATIONS, page 31

List of Illustrations and Tables

Figure 1, page 13

Evolution 505 Front Panel

Figure 2, page 17

Evolution 505 Remote Control

Figure 3, page 19

Evolution 505 Back Panel

Table 1, page 22

Analog and Digital Connections

A Letter from Dan D’Agostino

Dear Audio Enthusiast,

Thank you for your purchase of the Krell Evolution 505 SACD/CD Player. Source components are the first, vital link in the audio signal chain, and an audio system can perform no better than the source allows. For this reason, I have made every effort to include the best technology in the design of this new Krell product.

At the heart of the Evolution 505 are separate, linear power supplies that insure perfect operating conditions for the drive mechanism and audio circuits. Discrete, Class A gain stages are balanced and are utilized from input to output. Current Mode topologies enable wide bandwidth performance, while Current Audio Signal Transmission (CAST) transmitters insure the most robust connection to other Evolution components. All of these technologies are heard in the authentic and satisfying audio reproduction of the Evolution 505.

I hope that you enjoy your new Evolution 505 source component.

Sincerely,

Daniel D’Agostino

Chief Executive Officer

SECTION ONE

Evolution 505 Features and Technology

This section describes the innovative features and technology of the Evolution 505 SACD/CD Player, and defines CAST and other key terms used in this reference.

The Evolution 505 works to carefully transmit audio signals without damaging the ephemeral staging and dimensional components of the music. A combination of advanced technologies and inspired design elevate the Evolution 505 SACD/CD Player’s performance to the reference level.

Features

The Evolution 505 has Class A, balanced, Krell Current Mode topology from input to output for increased bandwidth. New current mirror stages feature LED voltage reference. Developed for the Evolution Two, these current mirrors operate with three times less distortion than previous designs. A zero feedback design preserves the original harmonic structure of the recording, and a 500 K bandwidth promotes low distortion and phase coherent performance.

The Evolution 505 uses PCM 1738 differential advanced segment DACs for superior dynamic range, and a DCI drive with independent suspension for enhanced ergonomics and reliability.

The Evolution 505 will read redbook, CDR, 44.1 WAV, AAC (adts, and adif), DVD- R, RW, +R, and RW discs. The 16 character, dot-matrix LED display is highly visible and features an adjustable intensity.

For flexibility of control, the back panel features a 2-way, RS-232 interface, an RC-5 connector, and 12 VDC trigger inputs and outputs. Krell Can Link connectors allow the Evolution 505 to operate in link mode with other Evolution components.

The outputs include balanced XLR, single-ended multi-channel outputs, and a pair of Evolution CAST™ outputs, for the most robust connection to other Evolution components.

A 65 VA linear power supply is used for the drive mechanism, for absolute voltage stability. A separate 45 VA linear power supply for the audio circuits is optimized to power critical Class A audio topologies.

Revolutionary Krell CAST Technology

Current Audio Signal Transmission, termed CAST, is a revolutionary method of connecting analog audio components for unparalleled sonic performance. Innovative engineering combines the new Krell CAST circuitry with existing Krell Current Mode technology to create entire CAST systems that reproduce music with incredible range, tonality, and precision.

The Voltage Signal Transmission

and the Traditional Audio System

Traditionally, signal is transmitted in the voltage domain between two components. In an audio system, each component is a discrete entity with unique characteristics that act upon the musical signal independently. Each component is unaware of the other components in the system. The cables that connect the components also have their own electrical characteristics, which affect the sonic presentation of the entire system. CAST transmission unifies individual components and interconnects into an electrically-linked whole. The original signal remains unaltered from source to speaker.

CAST Basics

Here is how a CAST audio system works: Internally, each CAST source transfers, or amplifies, current using Krell Current Mode circuitry. This current signal is then output using CAST circuitry. When the signal is received by a CAST input, Krell Current Mode circuitry again takes over until the signal reaches the loudspeaker. By maintaining the musical signal in the current domain from beginning to end, an entire CAST system behaves as if it is one component. With CAST, circuit board properties and signal transmission aberrations between components are eliminated. Cable impedances and their effects on the transmitted signal are non-existent.

How CAST and Krell Current Mode Interact

While CAST is a new method of transferring the musical signal between components, its origin stems from Krell Current Mode, the technology developed to transfer the musical signal within a component. CAST combined with Krell Current Mode takes circuitry signal transmission to the next evolutionary level.

continued

(SECTION ONE: Evolution 505 Features and Technology continued)

In essence, Krell Current Mode maintains the integrity of the signal within the component and CAST preserves the transmitted signal between components. Together, CAST and Krell Current Mode technologies unify separate Krell components into a single global circuit. Krell Current Mode technology enjoys bandwidth increases up to an order of magnitude greater than their voltage based counterparts. This dramatic increase in circuit bandwidth delivers near perfection in the audible band that typically suffers from phase distortions in voltage circuits.

CAST Cable Construction

A CAST system uses cables manufactured by Krell and other manufacturers specially licensed by Krell. Thin and flexible CAST cables are constructed with the same build quality as other Krell components and are aesthetically matched to the components that Krell manufactures. An all-metal body and locking connectors with gold contacts are part of the standard no-compromise specification developed for every CAST cable made.

Evolution CAST

By employing radical current mirror circuitry, the Evolution 505 components elevate the CAST technology to another level. This advanced use of the technology increases the linearity, transient speed, and bandwidth of the Evolution components while reducing the distortion by an order of magnitude.

The Best Musical Performance

When you operate a CAST system, you will hear significant improvements in every performance area: speed, precision, dynamic range, depth and width of the sound stage, transient impact, tonal balance, harmonic distortion, and more. The goal for CAST is the same company goal used for all Krell products. Krell strives for the delivery of the best performance of a musical event for you, using the full expression of technology to date.

Definition of Terms

The following are definitions of key terms used in this owner’s reference:

Inputs and Outputs

Balanced

A symmetrical input or output circuit that has equal impedance from both input terminals to a common ground reference point. The industry standard for professional and sound recording installations, balanced connections have 6 dB more gain than single-ended connections and allow the use of long interconnect cables. Balanced connections are completely immune to induced noise from the system or the environment.

CAST and Evolution CAST

Krell Current Audio Signal Transmission, or CAST, is a proprietary Krell circuit technology for connecting analog components, transmitting the audio waveform between components in the current domain rather than in the voltage domain. The speed and bandwidth provided by Krell CAST and its circuitry update, Evolution CAST, yield accurate, realistic music reproduction, enabling connected components to perform as if they are all part of a single circuit.

Single-ended

A two-wire input or output circuit. Single-ended connections are not recommended for connections requiring long cable runs. Use care when using single-ended connections, because the ground connection is made last and broken first. Turn the system off/on prior to making or breaking single-ended connections.

Operation

Off

When the back panel power switch (34) is in the down (0) position, or the AC power supply cord is disconnected, the component is off, and the stand-by/power LED is not illuminated.

Stand-by

A low-power-consumption status that keeps the audio and regulator circuits at idle. The stand-by/power LED (2) is illuminated in red when the component is in stand-by mode. Krell recommends leaving the component in stand-by mode when it is not playing music.

Operation

When the power button (1) or key is pressed, the standby/power LED (2) is illuminated in blue, and the component is in operational mode and ready to play music.

continued

(SECTION ONE: Evolution 505 Features and Technology continued)

Technology

Krell Current Mode

A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than the voltage domain. This unique technology provides the component with exceptional speed and a wide bandwidth.

SACD Disc

A Super Audio Compact Disc (SACD) is an audio disc that provides exceptional high quality sound. Based on the new Direct Stream Digital (DSD) technology, a format that comprises a 1-bit system, a SACD has a sampling frequency 64 times higher than that of a conventional audio CD. With a frequency response of over 50 kHz, and a dynamic range of 120 dB over the entire audible spectrum, the results are spectacular: There is no better audio disc reproduction.

You will recognize a SACD by the super audio compact disc logo.

There are three SACD disc types:

1.A single layer disc consists of one high density (HD) layer.

2.A dual layer disc consists of two HD layers, and can store twice as much information as a single layer disc.

3.A hybrid disc consists of one standard compact disc layer with conventional two-channel audio compact disc information, and one HD layer.

SACD Disc: Hybrid Disc Type

Each SACD disc type may contain two areas of recorded information: a high-quali- ty two-channel area and a high-quality multi-channel area. Recorded information may vary per area. Refer to the disc inlay for more information.

The hybrid SACD disc type has the most versatile disc playback options, with two areas of recorded information for SACD playback as well as backward compatibility with existing standard CD and DVD players via the standard compact disc layer.

On a hybrid SACD disc, the two layers are read from the same side of the disc. The HD layer is read by a DVD laser. The reflective conventional compact disc layer is read by the CD laser through the second, semi-transmissive HD layer.

CDDA

This is the digital audio file type utilized for standard CD’s. CDDA stands for a Compact Disc Digital Audio system.

Data Disc

This is a disc composed of digital audio files of a type other than CDDA. The most widely recognized non-CDDA digital audio file type is MP3.

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