1. Product Overview
The Creadvent SPD-120PRO is a high-performance 120W DC linear stabilized power supply designed to deliver clean and stable power for sensitive electronic devices such as hard disk boxes, NAS systems, and audio circuits. It features a precision linear regulated design, multi-stage filtering for ultra-low ripple, and high-quality components for efficient heat dissipation and superior performance.
2. Setup Instructions
- Unpacking: Carefully remove the power supply and all accessories from the packaging. Verify that all components listed in the package contents are present.
- Input Voltage Selection: The power supply is available in AC230V or AC115V input voltage versions. Ensure you have the correct version for your region. There is no user-selectable switch for input voltage on the unit itself; the unit is manufactured for a specific input voltage.
- Connect AC Power: Connect the provided input AC power cord to the AC input port on the rear of the power supply. Plug the other end into a suitable wall outlet.
- Connect DC Output: Connect the provided DC output lines (5.5 * 2.5mm plugs) to the dual DC output ports on the rear of the power supply. Connect the other end of the DC cables to your target device(s). Ensure the polarity is correct for your device.
3. Operating Instructions
- Power On: After connecting all cables, press the 'POWER' button on the front panel to turn on the power supply.
- Output Voltage: The power supply provides fixed dual DC output voltages. Available options include Dual DC 5V, Dual DC 9V, Dual DC 12V, and Dual DC 24V, depending on the model purchased. The product title indicates a default of 12V, meaning the specific unit you received is configured for that voltage unless otherwise specified at purchase. The output voltage is not user-adjustable.
- Monitoring: The unit operates silently. Ensure your connected devices are functioning correctly.
- Power Off: To turn off the power supply, press the 'POWER' button again.
4. Maintenance
- Cleaning: Keep the power supply clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid cleaners or solvents.
- Ventilation: Ensure the ventilation slots on the top and sides of the unit are not obstructed to allow for proper heat dissipation.
- Environment: Operate the unit in a dry, well-ventilated area, away from direct sunlight, high temperatures, and excessive humidity.
- Cable Management: Periodically check all cables for signs of wear or damage. Replace any damaged cables immediately.
5. Troubleshooting
- No Power:
- Ensure the AC power cord is securely connected to both the power supply and the wall outlet.
- Verify that the wall outlet is live.
- Check the power button on the front panel is pressed.
- No DC Output:
- Confirm the power supply is turned on.
- Check that the DC output cables are securely connected to both the power supply and your device.
- Ensure your device is compatible with the fixed output voltage of your power supply model.
- Unexpected Noise/Interference:
- While the CLC circuit is designed for ultra-low ripple and noise, external electromagnetic interference can still occur. Try relocating the power supply or connected devices away from other electronics.
- Ensure all connections are tight and secure.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | SPD-120PRO |
| Input Voltage | AC230V / AC115V (factory configured) |
| Output Voltage Options | Dual DC 5V, Dual DC 9V, Dual DC 12V, Dual DC 24V (fixed per model) |
| Maximum Power Per Channel | 101-130W |
| DC Plug Style | 5.5 * 2.5mm |
| Dimensions (L x W x H) | 25cm x 13cm x 6cm |
| Package Weight | 3.5 kg |
| Transformer Type | 120W A Core Toroidal Transformer with Pure Copper Enamel Wire |
| Operational Amplifier | High-end OPA1611 with ultra-low distortion (0.000015%) |
| Filtering Circuit | CLC circuit with red ring inductors + Nikon filter capacitors |
7. User Tips
- Fixed Output Voltage: Please note that the SPD-120PRO is a fixed-voltage power supply. The output voltage (e.g., 5V, 9V, 12V, 24V) is determined at the time of purchase and cannot be adjusted by the user to other values like 16V. Ensure you select the model with the correct voltage for your application.
- Optimal Performance: For best performance, connect the power supply to devices that benefit from a clean, stable DC power source, such as high-fidelity audio equipment, sensitive network devices, or external hard drive enclosures.
- Cable Quality: While output cables are provided, using high-quality, low-resistance DC cables can further enhance power delivery to your sensitive equipment.
8. Warranty and Support
For any technical assistance, warranty claims, or support inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase. Specific warranty terms and conditions may vary by region and seller.
