Sennheiser 509501

Overview

The Sennheiser 509501 is a wireless bodypack transmitter designed to provide clear and stable audio for performers and presenters without the restrictions of cables. Operating in the 516 to 558 MHz A band, it offers a line-of-sight range of up to 330 feet and features a 42 MHz tuning bandwidth with 1680 selectable frequencies, ensuring reliable signal transmission even in crowded RF environments. This transmitter pairs seamlessly with the Sennheiser EM 100 G4 receiver, making setup quick and straightforward.

Key features

• Operates within the 516-558 MHz A band, optimized for use with EM 100 G4 receivers to ensure compatibility and performance.
• Provides a transmission range of up to 330 feet line-of-sight, allowing freedom of movement on stage or during presentations.
• Offers a wide 42 MHz tuning window with 1680 selectable frequencies to avoid interference and maintain a clean signal.
• Locking 3.5 mm input supports lavalier and headset microphones as well as instrument cables with the appropriate adapter, enhancing versatility.
• Infrared synchronization enables fast and secure pairing with the receiver, simplifying setup in busy environments.
• Adjustable input level and 30 mW RF output allow precise matching to different microphone types and instruments for optimal sound quality.
• Powered by two standard AA batteries for up to eight hours of continuous use, with an option for rechargeable BA 2015 Accupack for extended sessions.
• Durable metal housing designed to withstand the rigors of daily stage use and rental applications.
• Backward compatibility with earlier Evolution Wireless systems facilitates easy integration into existing setups without replacing all equipment.

Key specs

• Frequency range: 516 to 558 MHz (A band)
• Transmission range: up to 330 feet line-of-sight
• Tuning bandwidth: 42 MHz
• Selectable frequencies: 1680
• Input connector: locking 3.5 mm
• RF output power: 30 mW
• Power source: two AA batteries or optional BA 2015 Accupack
• Battery life: up to 8 hours
• Housing: metal construction

Connectivity and compatibility

This transmitter is designed to work seamlessly with the Sennheiser EM 100 G4 receiver, ensuring stable and interference-free wireless audio transmission. The locking 3.5 mm input jack accepts a variety of microphones, including lavalier and headset types, as well as instrument cables when used with the correct adapter. Its backward compatibility with earlier Evolution Wireless systems allows users to expand or upgrade their wireless setups without replacing all components, making it a flexible choice for evolving audio needs.

Performance and reliability

The SK 100 G4 transmitter delivers consistent performance with a robust metal housing that endures the demands of touring, stage performances, and rental use. Its wide tuning range and large number of selectable frequencies help avoid interference in crowded RF environments, while the adjustable input level and 30 mW output ensure clear and balanced audio for a variety of sources. The infrared sync feature simplifies frequency matching, reducing setup time and minimizing errors during live events.

Ideal uses and environments

This transmitter suits a wide range of professional applications, including live music performances, corporate presentations, worship services, and video production. Its long transmission range and reliable signal make it well suited for stage vocalists, guitarists, and speakers who need freedom of movement without compromising audio quality. The unit’s compatibility with existing Evolution Wireless systems also makes it a practical choice for users looking to expand or replace parts of their wireless audio setup without a full overhaul.

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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

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