Introduction
The Monoprice SS-4 Premium 4 Channel Speaker Selector is designed to connect up to four pairs of 4-ohm or 8-ohm speakers to a single amplifier or receiver. It features resistor-based impedance matching circuitry to maintain a safe impedance load for your audio equipment. Each speaker zone can be independently turned on or off using the front panel buttons.
Safety Information
- Read these instructions carefully before use.
- Keep this manual for future reference.
- Do not expose this device to moisture or extreme temperatures.
- Ensure all connections are secure before powering on your audio system.
- Use only the recommended speaker wire gauges (12-16 AWG).
Package Contents
Please ensure all items listed below are present in your package. If anything is missing or damaged, contact Monoprice Customer Service.
- 1x Monoprice SS-4 Premium 4 Channel Speaker Selector
- 1x User Manual (this document)
Product Overview
Front Panel
The front panel features four individual push-button controls for each speaker zone.
Image: Front view of the Monoprice SS-4 Speaker Selector, showing four 'ZONE' buttons labeled 1 through 4.
- ZONE 1-4 Buttons: Press to enable or disable the corresponding speaker zone.
Rear Panel
The rear panel provides all the necessary connections for your amplifier and speaker pairs.
Image: Rear view of the Monoprice SS-4 Speaker Selector, showing input terminals labeled 'FROM AMPLIFIER' and output terminals labeled 'ZONE 1 SPEAKERS' through 'ZONE 4 SPEAKERS'.
- FROM AMPLIFIER (L/R): Input terminals for connecting your amplifier or receiver.
- ZONE 1-4 SPEAKERS (L/R): Output terminals for connecting up to four pairs of speakers.
Setup and Installation
Follow these steps to properly connect your Monoprice SS-4 Speaker Selector to your audio system.
- Power Off: Ensure your amplifier/receiver and all other audio components are powered off and unplugged from the wall outlet before making any connections.
- Connect Amplifier: Connect the speaker output terminals of your amplifier or receiver to the "FROM AMPLIFIER L/R" input terminals on the rear of the SS-4 Speaker Selector. Use high-quality 12-16 AWG speaker wire.
- Connect Speakers: Connect each pair of speakers to the corresponding "ZONE 1 SPEAKERS L/R" through "ZONE 4 SPEAKERS L/R" output terminals on the rear of the SS-4 Speaker Selector. Ensure correct polarity (+ to + and - to -) for all connections.
- Verify Connections: Double-check all speaker wire connections to ensure they are secure and that there are no stray wire strands that could cause a short circuit. The heavy-duty screw-type connectors are designed for secure connections.
- Power On: Once all connections are verified, plug in and power on your amplifier/receiver.
Important:
- The SS-4 features automatic impedance protection circuitry to maintain a safe load for your amplifier.
- It supports a 5-ohm minimum amplifier impedance with four 4-ohm speakers selected, and a 6-ohm minimum with 8-ohm speakers.
- Isolated left/right circuit grounds provide a safe connection for amplifiers with floating grounds or bridged configurations.
Operating Instructions
Using the Monoprice SS-4 Speaker Selector is straightforward.
- Select Speaker Zones: Press the "ZONE 1", "ZONE 2", "ZONE 3", or "ZONE 4" buttons on the front panel to turn the corresponding speaker pair on or off.
- Multiple Zones: You can activate one or more speaker zones simultaneously. The impedance protection circuitry will automatically adjust to ensure a safe load for your amplifier.
- Volume Control: Adjust the volume using your amplifier or receiver's volume control. The SS-4 Speaker Selector does not provide independent volume control for each zone.
Maintenance
The Monoprice SS-4 Speaker Selector requires minimal maintenance.
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or aerosols.
- Connections: Periodically check all wire connections to ensure they remain secure.
- Ventilation: Ensure the unit has adequate ventilation and is not placed in an enclosed space that could lead to overheating.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from speakers. | Speaker zone not activated. | Press the corresponding ZONE button on the front panel. |
| No sound from speakers. | Incorrect wiring or loose connections. | Check all speaker wire connections for correct polarity and ensure they are secure. |
| No sound from speakers. | Amplifier/receiver not powered on or input not selected. | Ensure your amplifier/receiver is powered on and the correct input source is selected. |
| Distorted sound. | Overdriving the amplifier or speakers. | Reduce the volume on your amplifier. Ensure speaker impedance is compatible. |
Specifications
- Model: 138157
- Channels: 4
- Impedance Protection: Automatic
- Power Capacity: 100 watts RMS per channel
- Minimum Amplifier Impedance (4-ohm speakers): 5 ohms (with four 4-ohm speakers selected)
- Minimum Amplifier Impedance (8-ohm speakers): 6 ohms (with 8-ohm speakers)
- Supported Speaker Wire Gauge: 12-16 AWG
- Connectors: Heavy-duty screw-type
- Color: Black
- Item Weight: 3.14 Ounces
Warranty
Monoprice provides a limited warranty for this product. For detailed warranty information, please refer to the official Monoprice website or contact customer support. The product's warranty description is listed as "1" in the product data, indicating a standard limited warranty.
Customer Support
For technical support, troubleshooting assistance, or warranty inquiries, please visit the official Monoprice website or contact their customer service department.