Power supply for

NoiseGard™

Ground

Do not connect !

XLR-3 socket

1. Connecting the headset to the on-board system

The NoiseGard™ electronics can be connected to on-board power supply systems with operating voltages between 12–35 V DC.

Danger of short circuit!

Before turning on NoiseGard™, ensure that the on-board power supply system is protected by a 1 A fuse.

The HMEC 350, HMEC 355-C, HMEC 372, HMEC 450 and HMDC 372 headsets are supplied with an XLR-3 socket for panel mounting in the aircraft. The XLR-3 socket must be mounted by a technician qualified to perform this type of installation.

HMEC 350 and HMEC 450 headsets:

￿Connect the ¼” (6.35 mm) stereo jack plug for the headphones and the PJ-068 jack plug for the microphone to the corresponding jack sockets of your intercom.

￿Connect the XLR-3 plug to the XLR-3 socket.

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Sennheiser SH350 manual XLR-3 socket

SH350 specifications

The Sennheiser SH350 is a professional-grade headset designed for those who prioritize high-quality audio and comfort in demanding environments. Known for its robust construction and excellent sound performance, the SH350 is ideal for professional users, including call center agents, broadcasters, and musicians.

One of the standout features of the SH350 is its exceptional sound quality. Equipped with advanced Neodymium magnets, the headphones deliver rich bass, clear mids, and crisp highs, making them suitable for various audio applications, from voice calls to immersive music listening. The wide frequency response ensures that users experience every detail in their audio, enhancing overall clarity and performance.

The SH350 offers passive noise isolation, which significantly reduces ambient sounds, allowing users to focus on their audio content without external distractions. This feature is especially beneficial in noisy environments, helping users to maintain clear communication or enjoy music without interruption.

Comfort is another key characteristic of the Sennheiser SH350. The headset is designed with padded ear cups and an adjustable headband, ensuring a secure yet comfortable fit for extended periods of use. The lightweight design helps reduce fatigue, making it an excellent choice for long calls or listening sessions.

In terms of technology, the SH350 features a flexible, noise-canceling microphone that ensures crystal clear voice transmission. This is particularly important for professional users who need their voice to be clearly heard during calls or broadcasts. The microphone can be easily adjusted to the optimal position, enhancing both comfort and audio clarity.

The headset is also equipped with a durable and reliable cable, ensuring a stable connection to various devices. Compatible with a wide range of platforms, including computers, tablets, and smartphones, the Sennheiser SH350 is versatile and user-friendly, catering to the needs of various professionals.

In summary, the Sennheiser SH350 is a well-rounded headset that combines superior sound quality, passive noise isolation, exceptional comfort, and advanced microphone technology, making it an excellent choice for anyone seeking a professional audio solution. Whether for communication in a busy office or listening to music on the go, the SH350 delivers an impressive performance tailored to meet the demands of users across different fields.