Sennheiser EW-D SKM-S Digital Wireless Handheld Transmitter with Mute Switch, No Mic Capsule

Product Overview

The Sennheiser EW-D SKM-S is the handheld transmitter body of the EW-D digital wireless platform, sold without a microphone capsule so integrators can specify the exact MMD series capsule for each deployment. Designed for commercial AV, live performance, and corporate environments, it delivers 24-bit digital audio with 134 dB of dynamic range in an all-metal, stage-ready housing. Because the capsule is purchased separately, multi-zone installs can mix vocal types — e.g., cardioid for lecturers, supercardioid for performers — across a single transmitter fleet without stocking separate complete systems. This is the professional integrator's choice for EW-D handheld channel deployments.

Product Description

The EW-D SKM-S handheld transmitter body pairs with any EW-D EM or compatible receiver to deliver pristine 24-bit digital audio without the coloration or noise floor of analog systems. Its interchangeable capsule head accepts the full range of Sennheiser MMD microphone capsules — cardioid, supercardioid, and condenser variants — giving system designers the flexibility to optimize polar pattern and frequency response for each room and use case. The all-metal chassis is built for the demands of daily professional use: from touring stages to permanent house-of-worship installs to corporate conference centers.

A front-panel mute switch gives presenters and performers instant control, and the mute function can be locked or overridden from the EW-D EM receiver or via the Sennheiser Smart Assist app over Bluetooth — ideal for panel moderation and broadcast scenarios where operator control is required. Initial pairing with the receiver takes just seconds via Bluetooth at distances up to 120 feet.

The EW-D SKM-S operates across 2,240 equidistantly spaced frequencies within a 56 MHz bandwidth, eliminating intermodulation interference even in dense multi-channel RF environments — a critical advantage for houses of worship, convention centers, and performing arts venues running eight or more simultaneous channels. Frequency coordination and RF monitoring are managed remotely through the Smart Assist app on iOS or Android, removing the need for dedicated RF coordination hardware on smaller deployments.

Power is supplied by two standard AA batteries for up to 8 hours of runtime, or by the optional BA 70 lithium-ion rechargeable battery pack for up to 12 hours. The transmitter is available in three frequency bands (Q1-6, R1-6, R4-9) to accommodate regional licensing requirements and existing RF environments. Note: the EW-D SKM-S is not backward-compatible with previous Sennheiser evolution analog wireless systems.

Key Features

• Capsule-Free Integrator SKU — Sold without capsule; pairs with any Sennheiser MMD series microphone capsule for application-specific configuration.
• 24-Bit Digital Audio — Studio-grade resolution with 134 dB dynamic range; no compander artifacts or analog noise floor.
• EW-D Platform Compatible — Pairs with EW-D EM single-channel and compatible multi-channel EW-D receivers.
• 2,240 Equidistant Frequencies — 56 MHz bandwidth with intermodulation-free frequency grid; supports dense multi-channel deployments.
• Mute Switch with Remote Lock/Override — Operator-controllable mute from receiver or Smart Assist app; prevents accidental unmute during live events.
• Bluetooth Pairing & Remote Control — Instant RF sync and full parameter control from the receiver or Smart Assist app up to 120 ft away.
• All-Metal Housing — Stage-grade durability for daily touring, rental, and permanent install environments.
• Flexible Battery Options — 8 hours on 2x AA or 12 hours with optional BA 70 rechargeable pack (sold separately).
• Three Frequency Band Options — Q1-6 (470.2–526 MHz), R1-6 (520–576 MHz), R4-9 (552–607.8 MHz) to match regional spectrum availability.
• Lightweight Ergonomics — Comfortable grip geometry suited for extended presenter and vocalist use.

Typical Applications

• Houses of worship — capsule selection optimized per vocalist or pastor without separate transmitter SKUs
• Corporate AV integration — multi-channel panel and town hall systems with operator mute control
• Performing arts venues — touring and resident productions requiring specific polar patterns per role
• Broadcast and livestream production — lockable mute and remote management via Smart Assist app
• University lecture halls and auditoriums — scalable EW-D channel deployments with centralized RF management
• Rental and staging companies — single transmitter body stocked with multiple capsule options

Technical Specifications

Frequently Asked Questions

Q: Why is the EW-D SKM-S sold without a capsule?

The capsule-free SKU is an integrator-focused configuration. It lets AV designers and system integrators specify and purchase the exact MMD series capsule (cardioid, supercardioid, condenser, etc.) separately, optimizing the microphone's polar pattern and frequency response for each specific application rather than accepting a bundled default capsule.

Q: Which capsules are compatible with the EW-D SKM-S?

The EW-D SKM-S accepts the full range of Sennheiser MMD series interchangeable microphone capsules. Contact Creation Networks for capsule recommendations based on your application.

Q: Can I use the EW-D SKM-S with my existing Sennheiser evolution (ew 100/300/500) receivers?

No. The EW-D SKM-S is a digital-only transmitter and is not backward-compatible with previous Sennheiser evolution analog wireless systems. It requires an EW-D series receiver.

Q: How does the mute switch work, and can an operator control it remotely?

The mute switch on the transmitter can be locked out from the EW-D EM receiver or via the Sennheiser Smart Assist app, preventing the talent from unmuting during a live event. An operator can also override the mute state remotely, making this ideal for broadcast and panel moderation workflows.

Q: How many simultaneous channels can the EW-D system support?

The EW-D system's equidistant 2,240-frequency grid is engineered to support up to 90 simultaneous channels when using compatible EW-D receivers, making it viable for large multi-channel installations.

Q: What frequency band should I order?

Band selection depends on your region's licensed spectrum and existing RF environment. Q1-6 covers 470.2–526 MHz, R1-6 covers 520–576 MHz, and R4-9 covers 552–607.8 MHz. Creation Networks can assist with band selection based on your site's RF scan and local regulations.

Q: What battery options are available?

The EW-D SKM-S runs up to 8 hours on two standard AA batteries, or up to 12 hours with the optional Sennheiser BA 70 lithium-ion rechargeable battery pack (requires the L70 USB dual-charging station, both sold separately).

Q: Is this product available for purchase at Creation Networks?

Yes. The EW-D SKM-S is available at creationnetworks.net in all three frequency bands. Our team provides pre-sales RF consultation and post-sale technical support for EW-D system deployments.