Krell Industries 505 manual Revolutionary Krell Cast Technology, Cast Basics

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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 characteris- tics 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 inter- connects 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 eliminat- ed. 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 compo- nents, 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.

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Contents Evolution Important Safety Instructions Contents List of Illustrations and Tables Dear Audio Enthusiast Letter from Dan D’AgostinoFeatures Evolution 505 Features and TechnologyCast Basics Voltage Signal Transmission Traditional Audio SystemHow Cast and Krell Current Mode Interact Revolutionary Krell Cast TechnologyEvolution Cast Cast Cable ConstructionBest Musical Performance Inputs and Outputs Definition of TermsOperation Sacd Disc Hybrid Disc Type Krell Current ModeTechnology Sacd DiscOpening the Evolution 505 Shipping Carton Unpacking and PlacementTo Remove the Evolution 505 from the Shipping Carton AC Power Guidelines PlacementThis section describes the Evolution 505 functions Anatomy of the EvolutionTransport Functions PowerFront Panel Description Remote Functions on the Front PanelEnter Button or Key To set up a programDirect Track Access Buttons or Keys Menu Button or KeyDisplay Button or Key DisplayFront Panel Display Dim Button or KeyEvolution 505 Remote Control Battery Installation and Removal Remote Control DescriptionEvolution 505 Back Panel Analog Audio Outputs Back Panel DescriptionDigital Audio Outputs CD format only Remote Connections on the Back Panel Using Balanced Connections Connecting the Evolution 505 to Your SystemConnection Steps How to Play a Disc Power OnEvolution 505 Operation Navigating a Data Disc Using the Title Button or KeyConventional Compact Disc Format Filters Using the Filter Button or KeySacd Format Filters Using the 12 V Trigger Using the Repeat KeyUsing the Repeat A/B Key Using the Front Panel DisplayWarranty Page To contact the Krell Service Department Return Authorization ProcedureTHD SpecificationsWNER’S Reference Krell INDUSTRIES, INC

505 specifications

Krell Industries has long been synonymous with high-end audio engineering, and the Krell 505 is a testament to its commitment to quality and performance. Designed for discerning audiophiles, the 505 exemplifies Krell's philosophy of delivering pure, uncolored sound. This model stands out as an advanced digital-to-analog converter (DAC) that caters to modern listening habits while retaining traditional audio values.

At its core, the Krell 505 features advanced digital signal processing and a high-performance DAC architecture, which ensures that every note is reproduced with incredible accuracy. One of the standout features of the 505 is its use of multiple premium DAC chips, allowing for precise voltage output and an expansive soundstage. This enables listeners to experience music as the artist intended, with detail and clarity across all frequencies.

The 505 supports a wide range of digital formats, including standard PCM up to 32-bit/384kHz and DSD up to DSD128, making it compatible with various audio sources. With such versatility, users can enjoy high-resolution audio from streaming services, home computers, and vinyl or CD players through its robust digital inputs. The Krell 505 is equipped with USB, coaxial, and optical inputs, ensuring seamless connectivity with a multitude of devices.

Another defining characteristic of the Krell 505 is its analogue and digital filtering options. Users can choose between different filter settings to tailor the sound to their preferences, whether they seek a warmer tonal quality or a more neutral presentation. This level of customization is ideal for audiophiles who appreciate tonal nuances in different recordings.

The build quality of the Krell 505 reinforces its premium status. The chassis is constructed from high-grade materials, providing not only aesthetic appeal but also effective vibration dampening. The user interface is intuitive, featuring a clear display and logical navigation, making operation simple even for those new to high-end audio equipment.

In summary, the Krell 505 encapsulates luxury and performance, catering to both conventional audiophiles and modern digital media consumers. With its advanced DAC technology, extensive file format support, and customizable sound options, it stands as a cornerstone of modern listening experiences, reinforcing Krell Industries' legacy as a leader in high-performance audio.
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