Sennheiser EW 500 G4-945 Wireless Handheld Microphone System with MMD 945 Capsule (GW1: 558 to 608 MHz)

Sennheiser EW 500 G4-945 Wireless Microphone System: Premium Live Audio with Broadcast-Level Clarity

When you need a wireless microphone system that delivers pristine sound and professional-grade reliability, the Sennheiser EW 500 G4-945 is built to meet the challenge. Whether you're leading a presentation, performing on stage, or delivering a sermon, this system ensures your voice comes through clearly, even in the most demanding environments.

Designed for seamless operation in theaters, concert halls, conference rooms, and houses of worship, the EW 500 G4-945 offers powerful features packed into an easy-to-use, rackmount system. With advanced RF performance, an intuitive interface, and outstanding audio fidelity, it’s built for sound professionals who expect consistent results.

At the core of the system is the EM 300-500 G4 receiver, housed in a rugged half-rack metal enclosure. This true-diversity receiver actively scans a 50 MHz UHF tuning range and offers access to up to 2000 selectable frequencies, helping you find the cleanest, most interference-free signal in seconds. The high-contrast OLED screen provides real-time feedback on signal strength, battery status, and more. Navigation is simple and fast thanks to the jog wheel and streamlined menu layout, allowing you to make quick adjustments—even in dark environments.

Paired with the receiver is the SKM 500 G4 handheld transmitter, which features the MMD 945 supercardioid dynamic capsule. Engineered specifically for speech and vocal applications, the MMD 945 offers a focused pickup pattern that reduces background noise and provides excellent feedback rejection. This makes it an ideal choice for loud stage environments or venues where vocal clarity is critical.

The handheld transmitter runs for up to eight hours on two AA batteries and supports adjustable RF output levels of 10, 30, or 50 milliwatts, giving you flexible power to adapt to various venues and RF conditions. With a wireless transmission range of up to 330 feet, you’ll have the freedom to move confidently across large stages or event spaces without dropouts.

The transmitter’s all-metal construction ensures durability, while its backlit display keeps key information visible at a glance. Input sensitivity is adjustable, making it easy to tailor the mic to loud vocalists or soft-spoken speakers. Once you’ve configured your settings, you can lock the controls to avoid any accidental changes during use. Syncing the transmitter to the receiver is quick and easy using the built-in infrared connection.

The EW 500 G4-945 is compatible with all previous Sennheiser evolution wireless systems, including G1, G2, G3, and G4. It also integrates smoothly with EW 100 and EW 300 series gear, giving you the flexibility to mix and match components as your setup grows.

You can further expand the handheld transmitter’s functionality thanks to its interchangeable capsule design. In addition to the MMD 945, you can choose from several other Sennheiser capsules like the MMD 835, MMD 845, MME 865, MMD 935, and MMD 42, allowing you to fine-tune your sound with different pickup patterns and tonal qualities.

For advanced control and coordination in multi-channel systems, the receiver includes an Ethernet port that connects to Sennheiser’s Wireless Systems Manager (WSM) software. From a Mac or PC, you can monitor signal strength, battery life, and audio levels, while organizing frequencies for up to 32 wireless systems running at once. This makes the EW 500 G4-945 a perfect fit for larger productions, broadcast setups, or touring environments where every detail matters.

Audio quality is further refined with Sennheiser’s HDX compander technology, which increases the signal-to-noise ratio and ensures clean, crystal-clear transmission. The onboard EQ lets you fine-tune the output, with options to adjust bass and treble to match your PA system or mixer. The adjustable output range of 48 dB ensures easy integration with different audio setups.

The receiver includes both balanced XLR and unbalanced 1/4-inch outputs, and its front-panel headphone jack allows real-time audio monitoring. A rackmount kit and international power supply adapters are included, so it’s ready for installation anywhere in the world.

Need to extend your system? You can connect up to four EM 300-500 G4 receivers to a single pair of remote antennas using the optional ASA 214 active antenna splitter. Adding directional or omnidirectional antennas such as the A 1031-U or A 2003 increases your signal range and provides added protection against interference.

As your needs evolve, you can adapt your system with optional bodypack transmitters. Pair them with lavalier microphones like the ME 2-II or MKE 2 for discreet speech applications, or use the ME 3-II headset mic for active presentations that require hands-free mobility. Musicians can connect their instruments directly using the Ci 1 cable for a fully wireless setup.

With its proven performance, thoughtful design, and premium sound, the Sennheiser EW 500 G4-945 is a dependable choice for professionals who can’t afford compromises. Whether you’re performing live, delivering an important message, or managing a complex audio setup, this system gives you the tools to sound your best—every time.