Sennheiser EW-DX SKM-S (Q1-9) | Digital Handheld Wireless Transmitter, 470.2–550 MHz, 12hr Runtime, E-Ink Display

Digital Wireless Handheld Microphone Transmitter for Live Sound & Installations

The Sennheiser EW-DX SKM-S w/ Switch is a premium digital UHF handheld wireless transmitter designed for professional applications in education, corporate environments, and live production. Featuring robust construction, seamless integration with Evolution Wireless Digital systems, and intuitive remote control options, this unit delivers studio-quality audio and unmatched system flexibility.

Sennheiser EW-DX SKM-S Competitive Differences

• 134 dB input dynamic range eliminates the need to set gain manually
• Persistent E-Ink display shows key parameters even with no power or batteries
• 12-hour runtime with BA 70 rechargeable battery (sold separately)
• Compatible with a wide selection of Sennheiser and Neumann capsules
• Integrated charging contacts for use with CHG 70N (sold separately)
• Programmable mute switch with multiple modes (AF Mute, RF Mute, or disabled)
• Equidistant channel spacing for easier frequency coordination and scalability
• Digital audio trim, switchable LED, and low cut filter options
• Bluetooth Low Energy control via Sennheiser Smart Assist app
• Metal construction for stage-ready durability

Sennheiser EW-DX SKM-S Description

The Sennheiser EW-DX SKM-S w/ Switch is part of the Evolution Wireless Digital system, offering a scalable and intelligent wireless solution for demanding audio environments. With a frequency range of 470.2–550 MHz and switching bandwidth of up to 88 MHz, this transmitter ensures optimal RF performance while complying with local regulations. This handheld transmitter features Sennheiser’s proprietary SePAC codec and a massive 134 dB dynamic range—meaning no gain adjustments are necessary. The E-Ink display ensures essential parameters are visible even when powered down, and charging contacts allow convenient in-device charging using optional chargers. Its compatibility with Sennheiser’s Control Cockpit, Wireless Systems Manager, and Smart Assist app makes setup, operation, and remote monitoring effortless. The programmable mute switch and control buttons offer on-the-fly adjustments directly from the transmitter. Whether you're outfitting a corporate AV setup or a high-channel-count live rig, the EW-DX SKM-S provides the reliability and flexibility professionals demand.

EW-DX SKM-S Features

• 134 dB input dynamic range – eliminates need for gain settings
• Digital SePAC audio codec for pristine sound quality
• 10 mW RF power – up to 328 ft (100 m) range
• Persistent E-Ink display – parameters remain visible even when powered off
• 12-hour operation with optional BA 70 lithium-ion battery
• Charging contacts compatible with CHG 70N (sold separately)
• Programmable mute switch: AF Mute, RF Mute, or disabled
• Function buttons for full local control
• Digital audio trim adjustment
• Test tone generator for setup and diagnostics
• Switchable LED (on/off)
• Low cut filter: Off, 30, 60, 80, 100, or 120 Hz
• Sennheiser standard capsule interface (capsules sold separately)
• Metal housing ensures durability in professional environments
• Worldwide operation (frequency-dependent, local regulations apply)

EW-DX SKM-S Specifications

• Frequency range: Q1-9 (470.2 – 550 MHz)
• Switching bandwidth: Up to 88 MHz
• RF output power: 10 mW
• Audio input dynamic range: 134 dB
• Battery life: Up to 12 hours (with BA 70, sold separately)
• Charging options: CHG 70N, L 70 USB, LM 6070 module for L 6000
• Control: Bluetooth Low Energy via Smart Assist app
• Dimensions with capsule: 10.6 in x 2 in (268 x 50 mm)
• Dimensions without capsule: 7.9 in x 1.6 in (200 x 40 mm)