Krell Industries 222 manual Important Safety Instructions

Page 2

Evolution 222 Stereo Preamplifier

Owner’s Reference, v06.0

 

TEL 203-298-4000

Krell Industries, Inc.

FAX 203-891-2028

45 Connair Road

E-MAILsales@krellonline.com

Orange, CT 06477-3650 USA

WEBSITE http://www.krellonline.com

 

 

 

Go to website

 

 

 

 

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 appa- ratus (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.The Evolution 222 preamplifier must be placed on a firm, level surface where it is not exposed to dripping or splashing.

11.The ventilation grids on the top of the Evolution 222 preamplifier and the space underneath the Evolution 222 preamplifier must be unobstructed at all times during operation. Do not place flammable material above or beneath the preamplifier.

12.Before making connections to the Evolution 222 preamplifier, 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.

13.Do not connect an RS-232 cable to the phono power port. Output from the phono power port can seriously damage your computer.

14.Do not connect the cable from a Krell KPE phono stage to the RS-232 port.

15.THERE ARE NO USER SERVICEABLE PARTS INSIDE AN EVOLUTION 222 PREAMPLIFIER.

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 309158-W

 

 

Image 2
Contents Evolution Important Safety Instructions Contents List of Illustrations Letter from Dan D’Agostino Evolution 222 Features and Technology FeaturesRevolutionary Krell Cast Technology Voltage Signal Transmission Traditional Audio SystemHow Cast and Krell Current Mode Interact Cast BasicsBest Musical Performance Cast Cable ConstructionEvolution Cast Operation Definition of TermsInputs and Outputs Krell Current Mode TechnologyPage Placement AC Power GuidelinesConnecting the Evolution 222 to Your System Quick StartOperating the Evolution Anatomy of the Evolution SelectorsChassis PowerFront Panel Description Remote Functions on the Front PanelPreamplifier Functions DisplayNavigate/Customize Level Control Level Control Knob or Level KeysEvolution 222 Remote Control Amplifier Functions Remote Control DescriptionBattery Installation and Removal Balance FunctionsCompact Disc and DVD Functions Evolution 222 Back Panel Inputs ConfigurationsBack Panel Description Outputs23 RC-5 Remote Connections on the Back Panel22 RS-232 24 12 VDC In/Out 12 V TriggerIEC Power Cord Receptacle Phono Stage ConnectorPhono Power Port Input and Output Connections Connecting the Evolution 222 to Your SystemXLR Pin Configuration Connection Steps To Turn Off The System Evolution 222 OperationOn/Off and Stand-by Operation Navigation Conventions Volume Knob or Level KeysCustomizing the Evolution Menu Functions AC MainsBalance channel Balance input trimDisplay Menu Button or Key Enter or exit the menuInfo Input Level Trim Input NameInput Phase Input TriggerEvolution 222 responds to 12 V input trigger commands IR Out ControlLink Control can Link MuteOutput Trigger RC-5 Control RecallRS-232 Control SaveTheater Mode Volume Display Troubleshooting System Noise Warranty Page Return Authorization Procedure To contact the Krell Service DepartmentSpecifications InputsConnair Road

222 specifications

Krell Industries has long been synonymous with high-end audio performance, and the Krell Industries 222 is no exception to this reputation. Designed with both audiophiles and casual listeners in mind, the 222 exemplifies cutting-edge technology, engineering precision, and a commitment to delivering exceptional sound quality.

At the heart of the Krell 222 is its audiophile-grade DAC (Digital-to-Analog Converter) that supports high-resolution audio formats, including DSD and PCM. This enables the unit to accurately reproduce music data at various sampling rates, providing a dynamic range and clarity that brings recorded music to life. The incorporation of proprietary Krell technologies ensures that the 222 minimizes digital distortion while maximizing audio fidelity.

Additionally, the Krell 222 features a state-of-the-art power supply designed to provide stable and clean power to its circuitry. This ensures that the amplifier can handle a wide range of audio signals without compromising sound quality. The unit employs advanced linear power supply technology, which is known for its ability to deliver consistent voltage under various load conditions, resulting in improved performance across all audio frequencies.

The connectivity options on the Krell 222 are robust, featuring both balanced XLR and unbalanced RCA inputs that facilitate seamless integration into various audio systems. With support for Bluetooth and network streaming, users can enjoy their favorite music from a variety of digital sources, enhancing the versatility of the unit. The Krell 222 also features a user-friendly interface, allowing for easy navigation and control over audio settings.

In terms of design, the Krell 222 showcases a modern aesthetic with a durable chassis that minimizes vibration and interference. The front panel is clean and intuitive, featuring a high-resolution display that provides real-time feedback on settings and parameters.

Notably, the Krell 222 embraces green technology, employing energy-efficient components that reduce power consumption without sacrificing performance. This commitment to sustainability reflects Krell's dedication to creating products that are both innovative and environmentally responsible.

In summary, Krell Industries 222 stands out with its advanced DAC, exceptional power supply, versatile connectivity options, and elegant design. It represents the pinnacle of what high-end audio can offer, making it an ideal choice for those who demand only the best in sound reproduction. With the Krell 222, users can experience music as it was meant to be heard, with clarity and depth that elevates the listening experience to new heights.