1. Informació important de seguretat
Please read all safety instructions before operating this device.
- Mantingueu el dispositiu allunyat de fonts de calor i humitat.
- No exposeu a temperatures extremes ni humitat.
- Follow general safety guidelines for electronic devices to prevent electric shock or fire.
- No intenteu desmuntar ni modificar la unitat. Encarregueu tot el manteniment a personal qualificat.
2. Producte acabatview
The OSD Nero WRSK250 is a 5.8GHz wireless system designed to provide surround sound to your media room without the need for extensive speaker cabling. This kit includes a transmitter and a receiver with a built-in 2 x 50W amplifier and a subwoofer output, offering a convenient solution for expanding your home theater audio.
Característiques principals:
- 5.8 GHz Wireless Signal: Ensures clear, uninterrupted audio by operating on a less crowded frequency band, minimizing interference from other wireless devices.
- Interval estès: Provides wireless surround sound connectivity up to 100 feet away, allowing flexible placement of rear speakers.
- Integrat Ampmés viu: The receiver unit features a 2 x 50W amplifier, capable of powering passive rear speakers.
- Sortida de subwoofer: Includes a dedicated output for connecting a wired subwoofer, enhancing bass performance.
- Fàcil instal·lació: Designed for simple plug-and-play setup with most home theater receivers, requiring no complex configuration.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al vostre paquet:
- 1 x OSD Nero WRSK250 Wireless Transmitter
- 1 x OSD Nero WRSK250 Wireless Receiver with Ampmés viu
- 1 x Transmitter Power Adapter (DC 9V)
- 1 x Receiver Power Adapter (DC 24V)
- 1 x Speaker Level Input Cable (for transmitter)
- 1 x RCA Cable (for subwoofer output, if applicable)

Image: Power adapters for the OSD Nero WRSK250 system. The smaller adapter is for the transmitter, and the larger one is for the receiver/ampmés viu.
4. Instruccions de configuració
4.1. Connecting the Transmitter Unit
- Connect the speaker level input cable from your main home theater receiver's rear speaker outputs (or subwoofer output) to the SPEAKER INPUT (L/R) terminals on the OSD Nero WRSK250 Transmitter unit. Ensure correct polarity (+ to + and - to -).
- Plug the Transmitter Power Adapter (DC 9V) into the CC EN 9V port on the Transmitter.
- Plug the power adapter into a wall outlet. The power indicator light on the transmitter will illuminate.
4.2. Connecting the Receiver/AmpUnitat lificadora
- Connect your passive rear speakers to the SPEAKER OUTPUT (L/R) terminals on the OSD Nero WRSK250 Receiver unit. Observe correct polarity.
- If using an external powered subwoofer, connect an RCA cable from the SUBWOOFER FOR port on the Receiver to the LFE/Subwoofer input on your powered subwoofer.
- Plug the Receiver Power Adapter (DC 24V) into the CC EN 24V port on the Receiver.
- Plug the power adapter into a wall outlet. The power indicator light on the receiver will illuminate.
4.3. Emparellament de les unitats
The Transmitter and Receiver units are designed to automatically pair upon power-up. Once both units are powered on, their indicator lights should turn solid blue, indicating a successful wireless connection. If the lights are flashing or not solid blue, press the 'M' (Mode/Pairing) button on both units simultaneously to initiate manual pairing. Allow a few seconds for them to connect.

Image: Rear panel of the OSD Nero WRSK250 units, showing speaker inputs/outputs, subwoofer output, and power connections.
5. Instruccions de funcionament
5.1. Encendre/apagar
Each unit has a dedicated power switch. Turn on both the Transmitter and Receiver units. The indicator lights will show their status (solid blue for connected, flashing for pairing).
5.2. Control de volum
The Receiver unit features a volume control knob. Adjust this knob to set the desired output level for your rear speakers. Fine-tune the overall balance using your main home theater receiver's settings.
5.3. Signal Stability
The 5.8GHz wireless signal is designed for stability. Ensure both units are within the 100-foot range and have a clear line of sight for optimal performance. Avoid placing units near large metal objects or other strong wireless interference sources.
6. Manteniment
To ensure the longevity and optimal performance of your OSD Nero WRSK250 system, follow these maintenance guidelines:
- Neteja: Feu servir un drap suau i sec per netejar l'exterior de les unitats. No utilitzeu netejadors líquids ni aerosols.
- Ventilació: Ensure the units have adequate ventilation. Do not block any ventilation openings.
- Emmagatzematge: If storing the units for an extended period, disconnect them from power and store in a cool, dry place.
7. Solució De Problemes
If you encounter issues with your OSD Nero WRSK250, refer to the following common troubleshooting steps:
- Sense so:
- Ensure both Transmitter and Receiver units are powered on and indicator lights are solid blue.
- Check all audio connections (speaker level input to transmitter, speaker output from receiver, subwoofer output if used).
- Verify the volume on the receiver unit is turned up.
- Confirm your main home theater receiver is sending audio to the connected outputs.
- Interference/Signal Dropouts:
- Relocate the units to improve line of sight and reduce potential interference from other 5.8GHz devices (e.g., Wi-Fi routers, cordless phones).
- Ensure units are within the 100-foot operational range.
- Try re-pairing the units by pressing the 'M' button on both simultaneously.
- Unitats que no s'aparellen:
- Assegureu-vos que les dues unitats estiguin enceses.
- Press and hold the 'M' button on both the Transmitter and Receiver for a few seconds until the indicator lights flash, then release. They should attempt to re-pair.
- Power cycle both units (unplug and replug power adapters) and try pairing again.
8. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | WRSK250 |
| Freqüència sense fil | 5.8 GHz |
| AmpSortida més viva | 2 x 50W |
| Tecnologia de connectivitat | Wireless, AUX (Speaker Level Input) |
| Font d'alimentació | Elèctric amb cable |
| Dimensions del producte | 2 x 7 x 4 polzades |
| Pes de l'article | 2.75 lliures |
| Material | Plàstic |

Image: Dimensions of the OSD Nero WRSK250 units, showing approximate measurements of 2 x 7 x 4 inches.
9. Garantia i Suport
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official OSD Audio website. OSD Audio is committed to providing high-quality home and commercial audio products and support.