Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Prospec Electronic Power Supply, Model SPA-POWER9. This outdoor-rated power supply is specifically designed for spa stereo systems, providing a stable 10A output at 115v/230v input compatibility. Please read this manual thoroughly before use to ensure safe and efficient operation.
Important Safety Information
Please read all safety warnings and instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury. This device operates with high voltage and current.
- Professional Installation: Installation should be performed by a qualified electrician in accordance with all local and national electrical codes.
- Power Disconnection: Always disconnect the main power supply before performing any installation, maintenance, or troubleshooting.
- Voltage Selection: Ensure the correct input voltage (115V or 230V) is selected or configured on the unit before connecting to the main power supply. Incorrect voltage can damage the unit and pose a safety hazard.
- Outdoor Use: This unit is rated IPX5 for outdoor use, meaning it is protected against low-pressure water jets from any direction. It is not designed for submersion. Ensure it is mounted in a location that avoids direct, high-pressure water spray.
- Grounding: Ensure the unit is properly grounded to prevent electric shock.
- Overload Protection: Do not exceed the specified output current of 10A. Overloading can cause damage to the unit and connected devices.
- Ventilation: Ensure adequate airflow around the unit to prevent overheating. Do not cover ventilation openings.
Product Overview
The Prospec Electronic Power Supply (Model SPA-POWER9) is a robust unit designed to provide stable power for your spa stereo system. Its durable construction and IPX5 rating make it suitable for outdoor environments. Key features include:
- Dedicated power supply for Milennia spa stereo systems.
- Outdoor-rated design with IPX5 protection.
- Provides 10A output current.
- Compatible with 115v/230v input voltage.

Figure 1: Front view of the Prospec Electronic Power Supply SPA-POWER9, showing the main unit with attached input and output cables. The label indicates model number, IPX5 rating, and electrical specifications.
Setup and Installation
Proper installation is crucial for the safe and efficient operation of the SPA-POWER9 power supply. It is strongly recommended that installation be performed by a qualified electrician following all applicable electrical codes.
- Mounting Location: Choose a secure, flat surface for mounting the power supply. Ensure the location is protected from direct, high-pressure water spray and allows for adequate ventilation.
- Secure Mounting: Use appropriate fasteners to securely mount the unit to the chosen surface. Ensure the mounting is stable and can support the unit's weight.
- Input Power Connection (AC):
Disconnect main power before proceeding. Connect the 115V/230V AC input power wires to the designated terminals on the power supply. Refer to the wiring diagram printed on the unit's label for correct connections. Ensure the voltage selector (if present) is set to the correct input voltage for your region. - Output Power Connection (DC):
Connect the DC output wires from the power supply to your spa stereo system. Pay close attention to polarity (positive and negative) to avoid damage to your stereo. - Grounding: Ensure the power supply is properly grounded according to local electrical codes. This is a critical safety step.
- Fuse Check: Verify that the internal fuse (rated 10A) is correctly installed. Do not use a fuse with a higher rating.
- Final Check: Double-check all connections for tightness and correct wiring. Ensure no bare wires are exposed.
- Apply Power: Once all connections are secure and verified, restore power to the main circuit.

Figure 2: View of the Prospec Electronic Power Supply SPA-POWER9, highlighting the attached input and output cables, which are ready for connection to the power source and spa stereo system.
Operating Instructions
The Prospec SPA-POWER9 is designed for continuous operation. Once properly installed and powered, it will automatically provide the necessary DC power to your connected spa stereo system.
- Power On: After installation, simply apply power to the circuit connected to the power supply. The unit will begin providing power to the connected spa stereo.
- System Check: Confirm that your spa stereo system powers on and functions correctly. Refer to your stereo's manual for its specific power-on indicators.
- Voltage Compatibility: Ensure that the connected spa stereo system is compatible with the output voltage provided by the SPA-POWER9.
Maintenance
The SPA-POWER9 power supply requires minimal maintenance. Regular checks can help ensure its longevity and safe operation.
- Periodic Inspection: Periodically inspect the unit for any signs of physical damage, such as cracks or corrosion, and check for loose connections.
- Cleaning: Clean the exterior of the unit with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture. Ensure no liquids enter the unit.
- Ventilation: Ensure that any ventilation openings on the unit are clear of dust, debris, or obstructions to maintain proper airflow and prevent overheating.
- Cable Integrity: Regularly inspect the input and output cables for any signs of wear, fraying, or damage. Replace damaged cables immediately.
Troubleshooting
If you experience issues with your Prospec SPA-POWER9 power supply, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power Output | No input power; Blown fuse; Loose connections; Incorrect voltage selection. | Check main power source; Replace fuse (10A, if accessible and replaceable); Secure all input and output connections; Verify correct voltage setting. |
| Intermittent Power | Loose wiring; Overload on output. | Check and tighten all electrical connections; Ensure total current draw of connected devices does not exceed 10A. |
| Unit Overheating | Poor ventilation; Excessive load. | Ensure adequate airflow around the unit; Clear any obstructions from ventilation areas; Reduce the load on the power supply if it exceeds 10A. |
| Spa Stereo Not Functioning | Incorrect wiring polarity; Faulty stereo unit. | Verify correct positive/negative connections to the stereo; Test the stereo with an alternative power source if possible. |
Specifications
Detailed technical specifications for the Prospec Electronic Power Supply SPA-POWER9:
| Feature | Detail |
|---|---|
| Model Name | Milennia |
| Item Model Number | SPA-POWER9 |
| Brand | Prospec Electronics |
| Input Voltage | 115v/230v AC |
| Output Current | 10A |
| Product Dimensions (L x W x H) | 12.3 x 6.3 x 4.3 inches |
| Item Weight | 3.31 pounds |
| Manufacturer | Prospec Electro |
| Ingress Protection (IP) Rating | IPX5 (Protected against low-pressure water jets from any direction) |
| Cooling Method | Air |
Warranty and Support
For warranty information, technical support, or service inquiries regarding your Prospec Electronic Power Supply SPA-POWER9, please contact Prospec Electronics directly through their official website or customer service channels. It is recommended to retain your purchase receipt as proof of purchase for warranty claims.





