Sennheiser EM 3731-II Instruction Manual

Sennheiser EM 3731-II manual cover
Pages 48
Year 2010
Language(s)
English en

Sennheiser EM 3731-II Specification

The Sennheiser EM 3731-II is a professional wireless receiver designed for live sound applications, offering robust performance and exceptional audio clarity. It operates within the UHF frequency range, providing reliable transmission and minimal interference across a broad spectrum. The receiver is engineered to work seamlessly with Sennheiser's SKM and SK series transmitters, ensuring compatibility and flexibility for various audio setups.

The EM 3731-II features advanced RF technology with a wide switching bandwidth, allowing users to select from numerous frequencies to avoid signal congestion. Its high-contrast OLED display provides clear visibility of essential information such as frequency settings, signal strength, and battery status, facilitating easy monitoring and adjustments even in low-light conditions. The receiver also incorporates true diversity reception with twin antennas, maximizing signal stability and minimizing dropouts during performances.

Audio quality is a priority with the EM 3731-II, which includes compander technology to ensure pristine sound reproduction. The receiver supports both analog and digital outputs, offering versatility in connecting to different audio systems. It is housed in a rugged 19-inch rack-mountable chassis, making it suitable for both touring and permanent installations. The unit is designed with intuitive controls and a straightforward menu system, simplifying setup and operation for audio engineers.

Incorporating professional-grade features and reliability, the Sennheiser EM 3731-II is ideal for broadcast, theater, and live concert environments, delivering consistent high-quality wireless audio. Its robust construction, advanced frequency management, and superior audio processing make it a preferred choice for professionals seeking dependable performance in demanding audio applications.

Sennheiser EM 3731-II F.A.Q.

How do I synchronize the EM 3731-II with a transmitter?

To synchronize the EM 3731-II with a transmitter, use the infrared interface by placing the transmitter in front of the receiver's sync LED. Follow the on-screen instructions on the receiver to complete the synchronization process.

What should I do if the EM 3731-II is not powering on?

First, check that the power cable is securely connected to both the receiver and a working power outlet. If the problem persists, inspect the fuse and replace it if necessary. Refer to the user manual for fuse specifications.

How can I improve the reception quality of the EM 3731-II?

Ensure the antennas are properly attached and positioned vertically. Avoid obstructions between the transmitter and receiver, and consider using an antenna booster or distribution system if needed.

What is the best way to clean and maintain the EM 3731-II?

Use a soft, dry cloth to clean the exterior. Avoid using solvents or abrasive cleaners. Regularly inspect connectors and cables for any signs of wear or damage.

Why is there no audio output from the EM 3731-II receiver?

Check the audio output connections and ensure they are plugged into the correct inputs on the mixing console or amplifier. Verify that the receiver is tuned to the same frequency as the transmitter.

How can I update the firmware on the EM 3731-II?

Visit the Sennheiser website to download the latest firmware update. Follow the provided instructions to install the update via the receiver's USB or network interface.

What frequency range does the EM 3731-II support?

The EM 3731-II supports a frequency range of 470 MHz to 638 MHz, depending on the specific model variant and regional regulations.

How do I set up a frequency bank on the EM 3731-II?

Access the menu on the receiver, navigate to the frequency bank settings, and select an available bank. Assign frequencies manually or use the automatic scan feature to find available frequencies.

Can I use multiple EM 3731-II receivers simultaneously without interference?

Yes, ensure each receiver is set to a unique frequency and consider using a frequency coordination software or service to minimize interference.

What should I do if the display on the EM 3731-II is not functioning properly?

Perform a soft reset by turning the receiver off and on. If the issue persists, check for firmware updates or contact Sennheiser support for further assistance.