Introduction
This manual provides essential instructions for the proper installation, operation, and maintenance of your NEC SP-RM3A Monitor Speakers. These rear-mounted speakers are designed to enhance audio for video conferencing and digital signage installations, offering 40 Watts of total power. Please read this manual thoroughly before using the product to ensure safe and optimal performance.
Safety Information
Always observe the following safety precautions to prevent damage to the product and ensure user safety:
- Do not expose the speakers to water or excessive moisture.
- Ensure proper ventilation around the speakers to prevent overheating.
- Use only the power adapter supplied with the product.
- Do not attempt to open or repair the speakers yourself. Refer all servicing to qualified personnel.
- Keep out of reach of children.
Package Contents
Verify that all items are present in the package:
- 2 x NEC SP-RM3A Speakers
- 1 x Power Adapter
- 1 x Audio Cable (if included, check packaging)
- 1 x User Manual (this document)
Setup Instructions
Follow these steps to properly set up your NEC SP-RM3A speakers:
- Mounting the Speakers: The SP-RM3A speakers are designed for rear-mounting on compatible NEC monitors (e.g., E558, E658, MultiSync CB651, E438, E498, M491, M651, ME431, ME501, ME651). Align the mounting brackets on the speakers with the designated attachment points on the monitor. Secure them using appropriate screws (not included, typically provided with the monitor or mounting kit). Ensure the speakers are firmly attached.
- Connecting Audio: Connect the audio input cable from your monitor or audio source to the audio input ports on one of the speakers. The speakers typically connect to each other via a dedicated cable.
- Connecting Power: Plug the power adapter into the power input port on the speaker unit. Then, plug the power adapter into a standard electrical outlet.
- Initial Power On: Once all connections are secure, power on your monitor and the speakers.
Image: The NEC SP-RM3A speakers shown with their power adapter. The speakers are rectangular, black, and designed for monitor mounting.
Operating Instructions
The NEC SP-RM3A speakers are designed for straightforward operation:
- Power On/Off: The speakers typically power on automatically when the connected monitor or audio source is active and receiving power. There may be a power indicator light on the speaker unit.
- Volume Control: Volume is primarily controlled via the connected monitor or the audio source device. Some models may include a remote control for basic functions.
- Wireless Connectivity: The speakers support Wi-Fi connectivity. Refer to your monitor's or audio source's manual for instructions on establishing a Wi-Fi audio connection, if applicable.
Maintenance
Proper maintenance ensures the longevity and performance of your speakers:
- Cleaning: Use a soft, dry cloth to wipe the exterior of the speakers. Do not use liquid cleaners or abrasive materials.
- Storage: If storing the speakers for an extended period, disconnect them from power and store them in a cool, dry place.
- Cable Management: Ensure all cables are neatly arranged and not pinched or strained to prevent damage.
Troubleshooting
If you encounter issues with your speakers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound |
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| Distorted sound |
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| Speakers not powering on |
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Specifications
Detailed technical specifications for the NEC SP-RM3A Speakers:
| Model Name | DHSPRM3A |
| Speaker Type | Monitor (Rear-mounted) |
| Compatible Devices | Desktop, Laptop, Projector, NEC MultiSync Monitors (E558, E658, CB651, E438, E498, M491, M651, ME431, ME501, ME651) |
| Surround Sound Channel Configuration | 2.0 |
| Included Components | 2 x Speaker |
| Rated Power (Total) | 40 Watts |
| Rated Speaker Impedance | 8 Ohms |
| Frequency Response Range | 80 Hz to 20 kHz |
| Sensitivity | 72 dB |
| Control Method | Remote |
| Wireless Communication Technology | Wi-Fi |
| Power Source | Corded Electric |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Mounting Type | Tabletop Mount (also compatible with monitor rear-mount) |
| Item Weight | 2.2 pounds (approx. 1 kg) |
| Manufacturer | NEC |
| UPC | 805736075298 |
Warranty Information
The NEC SP-RM3A Speakers come with a Limited Warranty. For specific terms and conditions, please refer to the warranty card included with your product or visit the official NEC support website. This warranty typically covers manufacturing defects under normal use conditions for a specified period from the date of purchase.
Customer Support
If you require further assistance, have questions not covered in this manual, or need to report a problem, please contact NEC customer support. You can usually find contact information (phone numbers, email, or support portals) on the official NEC website or on your product's packaging.
Please have your product model number (DHSPRM3A) and purchase information ready when contacting support.
