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Audio Note COBRA - User Manual

Audio Note COBRA
14 pages
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COBRA
OWNER’S INFORMATION
INTEGRATED AMPLIFIER
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Summary

Important Safety Information

Electrical Shock and High Voltage Warnings

Alerts users to lethal internal voltages and the necessity of qualified technicians for component replacement.

Ventilation and Heat Management

Highlights the need for adequate ventilation and keeping the unit away from children due to high operating temperatures.

General Safety Precautions

Outlines essential safety practices, including handling the power cord and avoiding internal object insertion.

CE Declaration of Conformity

Product Disposal Guidelines

Provides instructions for environmentally responsible disposal, separating the product from household waste.

Power Requirements Verification

Advises users to ensure the unit's power requirements match their geographical location, checking the serial number plate.

Introduction to the Cobra Amplifier

Product Manual Importance

Stresses the importance of reading the provided manual for accurate product information, as online versions may differ.

Contacting Audio Note UK

Provides contact details for Audio Note (UK) Limited for any product or manual-related inquiries.

Audio Note Cobra Amplifier

Unpacking and Installation

Offers guidance on safely unpacking, selecting a suitable location, and ensuring proper ventilation for the amplifier.

Valve Installation

Critical Valve Installation Warnings

Emphasizes the critical nature of correct valve installation to prevent severe damage not covered by warranty.

Valve Placement and Identification

Details the specific sockets and types of valves (EL34, 5670, 6AU6) to be installed in the amplifier.

Connection Guide

Input and Ground Connections

Explains the connection of line and digital inputs, as well as the ground post for source components.

Speaker Output Connections

Details how to connect speakers using the color-coded binding posts for left and right channels.

Mains Power and Fuse Access

Covers connecting the IEC mains inlet and locating the mains fuse compartment on the rear panel.

Operating the Cobra Amplifier

Power-On Sequence and Initialization

Instructs on the correct order for turning on source components and the amplifier, including warm-up time.

Front Panel Controls Explained

Describes the function of the Input Selector and Volume Control knobs on the front panel.

Remote Control Functionality

Notes that inputs, volume, and mute functions can be operated using the supplied remote control handset.

Operation Details and Maintenance

Amplifier Bedding-In Period

Explains the initial 200-hour 'bedding-in' period for optimal performance and the subsequent warm-up time.

Cleaning and Care Instructions

Provides guidance on cleaning the amplifier's casework, emphasizing the use of soft cloths and avoiding harsh chemicals.

Valve Lifespan and Replacement

Informs about the expected valve lifespan of approximately 6000 hours and the need for matched pairs for replacement.

Technical Specifications

Warranty Information

Warranty Coverage and Period

Details the two-year product warranty and three-month valve warranty, covering defects in materials and workmanship.

Service and Return Procedures

Outlines the process for returning the unit for service, including packaging, shipping, and documentation requirements.

Warranty Exclusions

Lists specific conditions and types of damage, such as misuse or improper cleaning, that are not covered by the warranty.

Contact Information

Dealer and Direct Support

Advises contacting local dealers for service or technical support, or Audio Note (UK) directly for assistance.

Audio Note UK Contact Details

Provides the company's full contact information, including address, telephone, fax, email, and website.

Audio Note COBRA Specifications

General IconGeneral
TypeIntegrated Amplifier
Signal to Noise Ratio90 dB
Power Output28 Watts per channel
DACYes
Output Power28W per channel
Outputs4 & 8 Ohm taps
Input Impedance100 kΩ
Frequency Response20 Hz - 20 kHz
Distortion<1% at rated output

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