Sennheiser EW-DX simplifies your professional workflow by utilizing refined technologies and decades of research to deliver a digital UHF system that can be scaled with ease. With its advanced feature set and hardware options, classrooms, corporate campuses, and live productions benefit from a network-ready system that is designed to integrate seamlessly. The system quickly assesses your environment and uses equidistant channel spacing to deploy frequencies while tools like Sennheiser’s Control Cockpit, Wireless Systems Manager, and Smart Assist App allow you to monitor your system remotely. In-device charging, 12-hour battery operation, and switching bandwidth up to 88 MHz are only a few more of the many features that make EW-DX the right tool for the job.
Features
- 134 dB input dynamic range - no need to set gain on your wireless transmitters at all, thanks to proprietary Sennheiser Performance Audio Codec (SePAC)
- 10mW fixed RF power for up to 100 m/328 ft of range
- Charging contacts for in-device charging with CHG 70N charger (sold separately)
- Persistent E-Ink display for "always on" information - parameters visible on screen even when taking out batteries
- Up to 12 hours of operation time with rechargeable lithium ion battery BA 70 (sold separately)
- Programmable mute switch (AF Mute, RF Mute, no function)
- Function buttons - control all the transmitter settings directly from the handheld including button lock function
- Digital audio trim
- Test tone generator
- Switchable LED configuration (On/Off)
- Switchable low cut (Off, 30 ,60, 80, 100, 120 Hz)
- Versatile charging options optionally available: CHG 70 N, L 70 USB, LM 6070 Module for L 6000 full rack charging station (Availability in 2023)
- Sennheiser Standard Capsule Interface - compatible with a wide range of Sennheiser and Neumann capsules (sold separately)
- Metal housing
- Worldwide usage (specific frequencies subject to local RF regulations)
- Note: All components of the Evolution Wireless Digital Family are designed to interoperate. Please be aware of restrictions of features linked to the respective series, such as switching bandwidth and use of Link Density mode.
Top Specs
- Dimensions50 x 268 mm (incl. MMD 835 microphone module) 40 x 200 mm (without microphone module)
- Weight (g)450
- Latency (ms)1.9 ms
- ConnectionWireless
Raising the bar
Evolution Wireless Digital breaks the boundaries by providing more dynamic range than any wireless system currently on the market. Automatically securing the most reliable signal in a matter of seconds and scalable up 90 channels thanks to 56 MHz of tuning bandwidth, it’s easy to see why this wireless system is in a class of its own.
Equidistant Spacing – simpler than it sounds
Evolution Wireless Digital features an equidistant tuning grid previously only found in our flagship Digital 6000 and Digital 9000 wireless systems. Quality components with exceptional linearity eliminate intermodulation between EW-D transmitters, allowing frequencies to be equally spaced every 600 kHz alongside each other. This simplifies frequency coordination for wireless beginners and seasoned professionals alike, and also contributes to the system’s scalability and impressively high channel count.
An engineer in your pocket
The power of Bluetooth Low Energy puts full control right in the palm of your hand with the Sennheiser Smart Assist app. Take advantage of a remarkably fast automated setup, mobile access to every system setting and the added benefit of remote monitoring, all from the convenience of your Android or iOS device. Save time, save energy and perform with confidence.
Tech Specs
Frequency Specifications
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Audio frequency response
20 Hz - 20 kHz (-3 dB)
Ambient Conditions
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Operating relative humidity (≤ %)
5 - 95 % (non-condensing)
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Operating temperature (C)
-10 °C - +55 °C (14 °F - 131 °F)
Technology
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Transmission method
200 kHz
What's in the box03
- EW-DX SKM-S handheld transmitter
- MZQ 1 microphone clamp
- 2 Batteries (AA)
EW-DX SKM-S (R1-9) – Handheld Transmitter with Switch for Professional Digital Audio Systems
EW-DX SKM-S (R1-9) is a Handheld Transmitter with an integrated on/off switch, part of the Sennheiser EW‑DX series. Operating in the R1‑9 band (520 – 607.8 MHz) with a wide 88 MHz bandwidth, it features AES‑256 encryption and ultra-low latency of just 1.9 ms. This makes it an ideal solution for professional digital wireless microphone systems used in stage performances, conferences, and high-profile events.
EW Digital audio quality – Clear, accurate, and powerful
EW‑DX SKM‑S (R1‑9) delivers superior sound quality with a wide frequency response of 20 Hz – 20 kHz, an impressive dynamic range of 134 dB, and extremely low Total Harmonic Distortion (THD ≤ -60 dB). The SePAC codec ensures pristine, transparent audio with latency as low as 1.9 ms – optimized for high-end conference microphones and professional live performance microphones.
Reliable connectivity and outstanding interference protection
Operating in the R1‑9 band (520 – 607.8 MHz), EW‑DX SKM‑S supports two operating modes:
- Standard (600 kHz): up to 146 channels
- Link Density (300 kHz): up to 293 channels
The AutoScan feature automatically detects clean frequencies to maintain uninterrupted signal even in RF-dense environments – a crucial advantage for UHF wireless microphones.
Durable handheld design with integrated switch
EW‑DX SKM‑S (R1‑9) features a robust handheld design with a solid metal housing and a convenient on/off switch for quick control during performances or conferences. Compatible with a wide range of Sennheiser microphone capsules, it integrates seamlessly into professional stage audio systems and conference setups.
Buy EW‑DX SKM‑S (R1‑9) at Hoang Bao Khoa – Genuine, fast delivery, professional support
Hoang Bao Khoa is an authorized Sennheiser distributor in Vietnam, ensuring customers receive high-quality products with excellent after-sales service:
- 100% genuine Sennheiser products with CO, CQ, and VAT invoices.
- In-stock items, fast nationwide delivery.
- 1:1 exchange within 48 hours for manufacturer defects.
- Official 24-month warranty for peace of mind.
- Experienced consultants to assist with setup and professional audio system optimization.
Conclusion
EW-DX SKM-S (R1-9) is a reliable handheld transmitter with an integrated switch, offering premium audio quality, stable connectivity, and rugged design. It is the perfect choice for stage performances, conferences, and professional audio applications.