Sennheiser EW-DX SK-SKM-S BASE SET Dual-Channel Digital Wireless Kit with Bodypack Transmitter, Handheld Transmitter & Bag (Q1-9: 470 to 550 MHz)

Sennheiser EW-DX SK-SKM-S BASE SET: A Pro-Grade Dual-Channel Wireless System Built for Demanding Audio Environments

The Sennheiser EW-DX SK-SKM-S BASE SET is a high-performance, dual-channel digital wireless microphone system that’s purpose-built for professionals who demand crystal-clear audio and rock-solid reliability. Whether you're managing sound for live performances, corporate presentations, church services, or educational settings, this system offers the flexibility and advanced features you need to stay in control.

This set includes a rugged half-rack EW-DX EM 2 dual-channel receiver, one handheld transmitter (without a mic capsule), and one bodypack transmitter (without a lavalier mic). It’s ideal for audio engineers and AV teams who want the freedom to customize their microphones for different performers or applications. The system operates in the UHF frequency range of 470 to 550 MHz, giving you stable, interference-resistant wireless coverage in crowded RF environments.

With an ultra-wide dynamic range of 134 dB, the EW-DX can handle everything from soft-spoken dialogue to powerful vocals without distortion. Its 80 MHz tuning bandwidth lets you scan up to 3200 available frequencies to find a clean signal. Thanks to Sennheiser’s equidistant tuning grid, you can deploy up to 134 wireless channels without complicated frequency coordination. Need more mics? Enable Link Density Mode and scale up to an incredible 269 channels within the same system.

The included handheld transmitter features a modular design, giving you full compatibility with a wide range of Sennheiser and Neumann mic capsules. Whether you're aiming for a condenser mic with crisp detail or a dynamic capsule for live vocals, this system adapts to your needs. The all-metal build, intuitive controls, and lockable mute button make it road-ready and easy to operate.

The bodypack transmitter is equally robust and user-friendly. It accepts any compatible lavalier mic, headset mic, or instrument cable via a locking 3.5mm input jack. The onboard e-Ink display remains visible even when powered off, making it easy to identify and configure your gear during setup. Each transmitter includes a rechargeable BA70 battery with up to 12 hours of runtime, or you can use standard AA batteries for up to 8 hours of use. Charging contacts are built in for optional dock charging with the CHG 70N (sold separately).

At the heart of the system, the EW-DX EM 2 dual-channel receiver delivers powerful control and visibility. Its high-contrast OLED screen gives you real-time feedback on RF signal strength, battery life, and audio levels. Bluetooth connectivity allows you to sync transmitters from up to 120 feet away and control settings directly from your phone using the Smart Assist app. For larger installations, Sennheiser’s Wireless Systems Manager and Control Cockpit software provide advanced control over your entire wireless network. The receiver includes balanced XLR and unbalanced 1/4-inch outputs, a headphone jack with volume control, and an RJ45 port for network control and PoE power. A rackmount kit is included for easy integration into your rig.

As your needs grow, the EW-DX system scales with you. Additional transmitters, like the EW-DX TS tabletop unit for gooseneck mics, and bodypacks with different connectors, are available separately. You can also enhance performance with upgraded antennas for extended range and reduced interference. For multi-receiver setups, the EW-D ASA antenna splitter ensures clean and efficient signal distribution without intermodulation issues.

To protect your investment on the go, the included Gator GM-2W carrying bag is designed to hold and transport two wireless mic systems securely. It features a rugged 600-denier nylon exterior, oversized compartments for rackmount receivers, and dedicated storage for handheld mics, cables, and batteries.

Whether you're building out a full-scale wireless system for a production venue or upgrading your setup for corporate AV, the Sennheiser EW-DX SK-SKM-S BASE SET delivers the performance, expandability, and reliability professionals rely on.