The Sennheiser EW 300 G4-BASE SKM-S-AW+ is a professional wireless handheld microphone system configured as a premium base set, designed to deliver exceptional vocal clarity and robust RF performance for demanding live sound and installed applications. Operating within the 558 to 608 MHz UHF band, this system provides a stable, interference-resistant frequency range well-suited for environments with complex RF activity, such as large-scale concerts, corporate events, and broadcast facilities. The set centers on a high-quality handheld transmitter integrated with a renowned Sennheiser vocal microphone capsule, paired with a true-diversity rackmount receiver, offering a complete, out-of-the-box solution for critical vocal reinforcement where reliability and audio fidelity are non-negotiable.

The handheld transmitter is the standout component, featuring a rugged metal body built to endure the physical demands of stage use. It is equipped with the interchangeable Sennheiser MM 835 dynamic microphone capsule, which is acclaimed for its smooth frequency response, high feedback rejection, and tailored vocal character that provides presence and intelligibility without harshness. The receiver, a 1U rackmount unit, incorporates an intuitive interface with a detailed LCD screen for real-time monitoring of RF signal strength, audio levels, and battery status. Advanced system features like an integrated spectrum analyzer for automatic frequency scanning and pilot tone-based squelch ensure quick, interference-free setup and stable operation alongside other wireless systems.

Engineered for seamless integration into professional audio workflows, the system utilizes Sennheiser's HDX companding technology to preserve a wide dynamic range and deliver transparent, full-bandwidth audio with very low noise and distortion. The receiver offers both balanced XLR and unbalanced 6.3 mm jack outputs for direct connection to mixing consoles or stageboxes. Sold as a comprehensive package, this base set typically includes all necessary components for immediate deployment—such as antennae, a power supply, and rackmount ears—making it an ideal choice for rental companies, touring musicians, and fixed installations that require a top-tier, reliable wireless handheld system ready for professional use straight from the case.