Aune SC1 EVO Audio Clock User Manual

1. Introduction

The Aune SC1 EVO is a high-precision 10MHz external audio clock designed to enhance the performance of compatible audio devices. It features a custom SC-cut OCXO (Oven Controlled Crystal Oscillator) and provides both sine wave and square wave outputs. This manual provides essential information for the proper setup, operation, and maintenance of your SC1 EVO.

2. Product Overview

2.1 Front Panel

Image Description: The front panel of the Aune SC1 EVO Audio Clock, showing the display screen, a multifunctional button, and an indicator light. The display shows 'aune SC1 Audio Clock' and 'EVO' branding.

• Display Screen: Shows operational status, temperature, and frequency.
• Multifunctional Button: Used for various controls and settings.
• Indicator Light: Provides visual feedback on the device's status.

2.2 Rear Panel

Image Description: The rear panel of the Aune SC1 EVO Audio Clock, detailing the input and output ports. These include 10MHz sine wave outputs, 10MHz square wave outputs, a DC power input, an AC input, and a power switch.

• 10MHz Sine Wave Output: Two outputs for connecting to compatible audio devices.
• 10MHz Square Wave Output: Two outputs for connecting to compatible audio devices.
• DC Power Input (12V): For external DC power supply.
• AC Input (100-240V AC): For standard AC power connection.
• Power Switch: To turn the device on or off.

2.3 Key Features

• Custom SC-cut OCXO: A high-quality, custom-designed Oven Controlled Crystal Oscillator for precise clock signals.
• Dual Waveform Outputs: Provides two sine wave and two square wave 10MHz outputs simultaneously.
• Independent Power Supply: Features a low-noise, high-current LDO exclusively for the OCXO, with dedicated shielding for isolation.
• Synchronized Isolated Output: All four outputs maintain phase synchronization of less than 0.00001° while being isolated.
• Wide Frequency Domain & Low Jitter: Jitter is below 200 fs (BW 1 Hz ~ 1 MHz), ensuring precise reference clock signals.
• AC+DC Dual Input: Supports worldwide 110-230V AC and 12V DC input, with DC priority.
• Vivid UI: Full-color display monitoring core chamber temperature in real-time (red for warm-up, yellow for operational, green for optimal).
• Cascade Symmetric Low-Noise Power Design: Stage-by-stage voltage regulation for optimal power delivery.

3. Setup Instructions

3.1 Power Connection

1. Ensure the power switch on the rear panel is in the OFF position.
2. Connect the provided AC power cable to the AC input port (100-240V AC) on the rear panel and then to a suitable power outlet. Alternatively, for DC power, connect a 12V DC power supply to the DC power input port. The device prioritizes DC input if both are connected.
3. Flip the power switch to the ON position. The display will illuminate.

3.2 Connecting to Audio Devices

The SC1 EVO provides two 10MHz sine wave outputs and two 10MHz square wave outputs. Use high-quality 75Ω coaxial cables to connect the appropriate output ports on the SC1 EVO to the 10MHz clock input ports on your compatible audio devices (e.g., DACs, streamers, CD players).

1. Identify the required clock input type (sine wave or square wave) on your audio device.
2. Connect one end of a 75Ω coaxial cable to the corresponding 10MHz output port on the SC1 EVO.
3. Connect the other end of the coaxial cable to the 10MHz clock input on your audio device.
4. Repeat for additional devices as needed. All four outputs can be used simultaneously.

4. Operation

4.1 Display Interface

Image Description: The Aune SC1 EVO's full-color display showing the 10MHz frequency and real-time core chamber temperature. The display changes color (red, yellow, green) to indicate the clock's status from warm-up to optimal operation.

The SC1 EVO features a full-color display that provides real-time information about the clock's status. It monitors the core chamber temperature, indicating:

• Red: Warm-up phase.
• Yellow: Operational, but not yet at peak stability.
• Green: Optimal operating temperature and stability achieved.

The display will also show the 10MHz frequency output.

4.2 Output Selection and Usage

The SC1 EVO automatically outputs both sine wave and square wave 10MHz signals simultaneously from their respective ports once powered on. There is no manual selection required for the output type. Ensure your connected audio device is configured to receive the external 10MHz clock signal.

5. Specifications

6. Maintenance

6.1 Cleaning

• Always disconnect the power before cleaning.
• Use a soft, dry, lint-free cloth to wipe the exterior of the device.
• Do not use liquid cleaners, aerosols, or solvents, as these may damage the finish or internal components.

6.2 Environmental Considerations

• Place the device on a stable, level surface.
• Avoid exposing the device to direct sunlight, excessive heat, humidity, or dust.
• Ensure adequate ventilation around the unit to prevent overheating.

7. Troubleshooting

If you encounter issues with your Aune SC1 EVO, please refer to the following common problems and solutions:

• No Power:
  • Check if the power cable is securely connected to both the device and the power outlet.
  • Ensure the power switch on the rear panel is in the ON position.
  • Verify that the power outlet is functional.
• No Clock Signal Output:
  • Confirm that the SC1 EVO is powered on and the display shows an operational status (yellow or green).
  • Check the coaxial cable connections between the SC1 EVO and your audio device. Ensure they are secure and the cables are not damaged.
  • Verify that your audio device is correctly configured to accept an external 10MHz clock signal and is connected to the appropriate input type (sine or square wave).
• Display Issues:
  • If the display is dim or flickering, try restarting the device.
  • If the display shows an unexpected color (e.g., red for an extended period after warm-up), ensure the device has adequate ventilation and is not in an excessively hot environment.

If the problem persists after attempting these solutions, please contact Aune customer support for further assistance.

8. Warranty and Support

The Aune SC1 EVO comes with a Limited Warranty. Please refer to the warranty card included with your product for specific terms and conditions, including coverage duration and service procedures.

For technical support, service, or warranty inquiries, please contact Aune customer service through their official website or the retailer where you purchased the product. You can visit the Aune Store for more information: Aune Official Store.