Sennheiser EM2500

The Sennheiser EM2500 is a professional-grade wireless microphone receiver designed for use in various live sound and broadcast applications. This system operates in the UHF frequency range of 734-776 MHz, offering reliable and clear audio transmission. It is compatible with Sennheiser e835 handheld microphones and provides robust performance in demanding environments.

Components

1. Receiver Unit: Sennheiser EM 2500
– Frequency Range: 734-776 MHz
– Display: Dual LCD displays for each channel, showing frequency, channel, squelch level, scan status, booster frequency, standby status, and remote control indications.
– Controls:
– Volume Knobs: Separate knobs for adjusting the volume levels of each channel.
– Power Button: Powers the receiver on and off.
– Frequency Setting Buttons: Allow for precise adjustment of the operating frequency for each channel.
– IR LED: Used for syncing the receiver with the transmitters via infrared.
– Back Panel Connectors:
– 2 Male XLR Connectors: For audio output. These connectors send the audio signals from each channel to external equipment such as a mixer or amplifier.
– DC Input: For connecting the included power supply.
– Fuse: Protects the receiver from electrical faults.
– Mix Out Jack: Provides a combined audio output of both channels, useful for feeding a single signal to an audio system.

2. Power Supply: Sennheiser NT 2-3 Switching Power Supply
– Model: Type FW7651/12
– Input Voltage: 100-240V AC, 50-60 Hz, 120mA
– Output Voltage: 12V DC, 500mA
– This power supply ensures that the receiver receives the correct voltage and current for optimal performance.

3. Microphones: Sennheiser e835
– Type: Dynamic handheld microphones
– Power Supply: Each microphone operates on 2 AA batteries (1.5V each), which provide the necessary power for operation.
– Design: Rugged and durable, suitable for live sound environments. The e835 is known for its excellent sound quality and feedback rejection.

4. Antennas
– Type: Two external antennas
– Purpose: Enhance signal reception and transmission, ensuring stable communication between the receiver and the microphones.

Features

– Frequency Diversity: The system supports frequency diversity to minimize dropouts and interference.
– Clear Audio Transmission: High-quality audio transmission with low latency, ideal for professional use.
– Robust Design: The receiver and microphones are built to withstand the rigors of frequent use and transport.
– Versatile Connectivity: Multiple output options allow integration with a variety of audio systems and setups.

Design and Assembly

– Designed in Germany: Reflects Sennheiser’s commitment to high standards of engineering and design.
– Assembled in the USA: Ensures quality control and reliable performance.

Usage Tips

– Power Supply: Make sure the power supply is properly connected to the receiver and that it is compatible with the local voltage.
– Microphone Batteries: Regularly check and replace the AA batteries in the microphones to avoid performance issues.
– Frequency Management: Use the scan feature on the receiver to select the best available frequency to avoid interference. Ensure the frequencies on the receiver and microphones are correctly matched.
– Connection: Use the XLR outputs to connect the receiver to your audio system or mixer. The mix out jack provides a convenient way to combine signals from both microphones into a single output.