Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Wheelock ET90-R High-Performance Speaker. Please read these instructions carefully before use to ensure optimal performance and safety.

The Wheelock ET90-R High-Performance Speaker. This image displays a round speaker unit, typically used for in-wall or in-ceiling installations. Note: The product description specifies 'Red', while this image shows a white unit. Please refer to your product packaging for the exact color.
Setup and Installation
The Wheelock ET90-R is designed for wall or ceiling mounting. Professional installation is recommended for optimal performance and safety, especially for corded electric connections.
Safety Precautions:
- Ensure power is disconnected before beginning any installation work.
- Follow all local electrical codes and regulations.
- Use appropriate tools and personal protective equipment.
- Do not install in locations exposed to moisture unless specifically rated for such environments. This product is not waterproof.
Installation Steps:
- Prepare the Mounting Location: Select a suitable location in the wall or ceiling, ensuring no obstructions (e.g., electrical wires, pipes) are present. Cut an appropriately sized opening for the speaker.
- Wiring: Connect the speaker wires from your audio source to the terminals on the ET90-R speaker. Ensure correct polarity (+ to + and - to -) for optimal sound. This device operates on a corded electric power source.
- Secure the Speaker: Insert the speaker into the prepared opening. Use the integrated mounting clips or screws (if provided) to secure the speaker firmly in place.
- Final Check: Once secured, ensure all connections are tight and the speaker is flush with the mounting surface.
Operating Instructions
The Wheelock ET90-R speaker is designed to reproduce audio signals from a connected amplifier or audio system. Its primary control method is voice control, typically managed through the connected audio system.
Basic Operation:
- Power On: Ensure your audio amplifier or receiver is powered on and connected to the speaker.
- Audio Source: Select your desired audio source on your amplifier (e.g., music player, radio).
- Volume Control: Adjust the volume using the controls on your amplifier or audio system.
- Voice Control: If your connected audio system supports voice control, you can manage playback, volume, and other functions through voice commands directed at your audio system's voice assistant. The speaker itself does not have integrated voice control capabilities but responds to signals from a voice-controlled source.
Maintenance
The Wheelock ET90-R speaker requires minimal maintenance to ensure long-lasting performance.
- Cleaning: Gently wipe the speaker grille and frame with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or excessive moisture, as these can damage the finish or internal components.
- Inspection: Periodically check the speaker for any signs of damage or loose connections. If any issues are found, address them promptly or consult a qualified technician.
- Environment: Ensure the speaker is not exposed to extreme temperatures, direct sunlight, or high humidity, as these conditions can affect its performance and lifespan. This product is not waterproof.
Troubleshooting
If you encounter issues with your Wheelock ET90-R speaker, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound | Loose wiring connection; Amplifier off or incorrect input selected; Speaker damaged. | Check all speaker wire connections at both the speaker and amplifier. Ensure the amplifier is powered on and the correct input source is selected. Test with another speaker if possible to isolate the issue. |
| Distorted Sound | Volume too high; Poor audio source quality; Damaged speaker cone. | Reduce the volume on your amplifier. Try a different audio source. Inspect the speaker cone for visible damage. |
| Intermittent Sound | Loose connection; Faulty speaker wire. | Verify all connections are secure. Inspect speaker wires for cuts or fraying and replace if necessary. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Wheelock |
| Model Name | ET90-R |
| Model Number | ET90-R |
| Item Weight | 0.45 Kilograms |
| Power Source | Corded Electric |
| Controller Type | Voice control (via connected system) |
| Is Waterproof | FALSE |
| Included Components | No (Speaker unit only) |
| Number of Items | 1 |
| UPC | 786697178429 |
| ASIN | B0041X0RNM |
Warranty Information
According to the product specifications, there is No Warranty provided for the Wheelock ET90-R High-Performance Speaker. Please refer to your retailer's return policy for any initial product defects.
Support and Contact
For further assistance or technical inquiries regarding your Wheelock ET90-R speaker, please contact the manufacturer, COOPER WHEELOCK, directly or visit their official website. You may also consult the retailer from whom you purchased the product.
Manufacturer: COOPER WHEELOCK
For general information, you can visit the Wheelock brand page on Amazon.


