Classé Sigma AMP2 Stereo Power Amplifier User Manual

About this manual

The Classé Sigma AMP2 is a high-quality stereo power amplifier designed with advanced D-class circuitry to ensure low distortion and excellent sound quality. The device features robust protection circuits against overload, short circuits, DC offset, and overheating, automatically entering standby mode if non-normal conditions occur.

Installation involves placing the unit on a shelf or rack with adequate ventilation (at least 6 inches behind) and avoiding soft surfaces like carpets. The amplifier operates on AC 100-240V at 50/60Hz and is suitable for environments below 35°C and altitudes under 2000 meters. This manual is written in Chinese.

What's inside

• Installation Instructions
• Safety Warnings
• Unique Design Features
• Front Panel
• Rear Panel
• CAN Bus Operation
• Maintenance and Care
• Troubleshooting

Frequently asked questions

What is the operating voltage of the Sigma AMP2?

The amplifier operates on AC 100-240V at 50/60Hz.

What is the recommended operating temperature?

The recommended ambient temperature for safe use is between 5°C and 35°C.

How long does it take for the amplifier to reach thermal balance?

The greatest sound quality improvement typically occurs after the initial 72 hours of operation.

How do I restart the amplifier if it enters protection mode?

Press and hold the Standby button for at least 3 seconds to restart the device.