Sennheiser EW-DX SK/SKM-S BASE SET Wireless Bodypack Base System

Step up to new digital wireless and get cash back when you trade in your old system with Sennheiser's wireless trade-in program! Place an order for new, eligible wireless between January 9th, 2023 and March 31st, 2023.

Microphone capsules are sold separately.

The EW-DX SK/SKM-S BASE SET from Sennheiser is a wireless bodypack base system. It includes one EW-DX SKM-S handheld transmitter, one EW-DX SK bodypack transmitter, one EW-DX EM 2 2-channel rackmount receiver, and two BA 70 rechargeable batteries.

The handheld transmitter includes a built-in mute switch. The receiver comes in a variety of configurations.

Available Configurations

• Q1-9: 470.2 - 550 MHz
• R1-9: 520 - 607.8 MHz
• V5-7: 941.7 - 951.8 MHz & 953.05 - 956.05 MHz & 956.65 - 959.65 MHz

The EW-DX SK

This compact bodypack transmitter is ideal for musicians and public speakers who want reliable, hands-free audio.

The EW-D EM 2

This two-channel digital wireless receiver is compatible with EW-D handheld, bodypack, and table-stand transmitters. This half-rack (9.5”) receiver features extended 88 MHz switching bandwidth, intermodulation-free operation for up to 293 channels with secure AES 256 encryption, and a redundant power supply via Power over Ethernet (PoE).

The EW-D SKM-S

Boasting a rugged metal construction and enjoying up to 12 hours of runtime, EW-DX SKM is built to meet the challenges of live sound head-on. Other features include an easy-to-read E-Ink display and charging contacts for in-device charging.

More about the EW-DX Series

Take the complexities out of wireless audio, all while enjoying sophisticated tools that help you easily set up and operate your system. Delivering peak performance, EW-DX offers seamless product pairing and management that is reliable and intuitive. This wireless series builds on decades of research, utilizes refined technologies, and incorporates sophisticated tools to deliver a scalable digital UHF system.

Effortlessly take control and monitor your mic system from your mobile device with tools like Sennheiser’s Control Cockpit, Wireless Systems Manager (WSM), or Smart Assist app that provide a detailed system view in complex, networked environments. Equidistant channel spacing, auto scan, and Bluetooth® Low Energy sync allow you to coordinate and set frequencies with the push of a button. Auto Scan assigns channels so you can pack more channels more reliably, without risking intermodulation interference. The equidistant frequency grid allocates more channels per available space. Meanwhile, automatic RF setup allows for easy in-room multi-channel installations.

Choose a system that consistently delivers reliable, high-quality audio, even in the most demanding and sensitive environments. EW-DX boasts a digital UHF transmission enhanced by a wide dynamic range and ultra-low latency that effortlessly keeps up with every detail of your sound. Sennheiser’s proprietary SePac audio codec and innovative conversion technology sum up to deliver outstanding audio transparency along the entire signal chain, from the moment your sound is captured by a transmitter to the time it reaches your audience’s ears.

EW-DX’s Intelligent Switching Diversity digital system enables antenna switching between audio frames to deliver a stable connection without audible artifacts. In transmitters with a 134 dB dynamic range, no sensitivity settings are required. Other features include in-device charging, 12-hour battery operation, and switching bandwidth up to 88 MHz.

Dante® network audio, Ethernet control ports, and AES-256 encryption allow EW-DX to be securely transmitted and placed on IT networks. Link Density Mode packs even more channels into a dedicated space while making the most of interchangeable series components across the Evolution Wireless Digital line. Customize your setup with accessories that help manage power and signal distribution.

Sennheiser EW-DX SK/SKM-S BASE SET Features

• Microphone capsules sold separately
• 2 channel half rack (9.5’)
• Up to 88 MHz switching bandwidth
• PoE IEEE 802.3af Class 3
• Equidistant Channel Spacing: 146 channels in standard mode; 293 channels in Link Density Mode
• Network enabled for control with Sennheiser Control Cockpit/media control system through a number of 3rd party modules
• Clear and easy focused user interface with OLED display
• Ethernet connectivity (IPv4 and IPv6)
• Secure AES 256 encryption
• External PSU 12V/1A
• All-metal housing
• 10mW RF power with up to 100m/328ft working range
• Charging contacts for in-device charging with CHG 70N
• Persistent eInk display - parameters visible on screen even when device is not powered on
• Programmable mute switch on EW-DX SKM-S - customize the device depending on your professional needs
• Function buttons - control all the transmitter settings directly from handheld microphone
• Extended runtime with lithium-ion batteries - up to 12 hours operation time
• Standard capsule interface - compatible with a wide range of Sennheiser and Neumann capsules
• Mic input trim control

• EW-DX EM 2 rack receiver1
• EW-DX SK bodypack receiver1
• EW-DX SKM-S1
• Rod antenna2
• Power supply with country adapters1
• GA 3 rackmount set1
• Rubber feet4
• BA 70 rechargeable battery pack2

• System
  • Audio Link Frequency Ranges
  • Q1-6: 470.2 - 526 MHz
  • R1-6: 520 - 576 MHz
  • V5-7: 941.7 - 951.8 MHz & 953.05 - 956.05 MHz & 956.65 - 959.65 MHz
  • Bluetooth® Low Energy (BLE) frequency range: 2402 - 2480 MHz
  • Audio Frequency Response: 20 Hz - 20 kHz (-3 dB) @ 3 dBfs
  • Audio THD: ≤ -60 dB for 1 kHz @ -3 dBfs input level
  • Dynamic Range: 134 dB
  • System Latency: 1.9 ms
  • Operating Temperature: 14°F to 131°F (-10°C to 55°C)
  • Relative Humidity: 5 - 95% (non-condensing)
• EW-DX EM 2 (rack receiver)
  • Input Voltage: 11 - 13 V ⎓ or PoE IEEE 802.3af Class 0 (CAT5e or higher)
  • Input Current: ≤ 1 A
  • Transmit Power (radiated): BLE: max. 10 mW EIRP
  • Audio Output Power: 18 dBu max
  • Headphone Output: 2x 70 mW @ 32 Ω
  • Ethernet
  • RJ-45 socket, IEEE802.3
  • 100Base-TX (half+full duplex)
  • 10Base-T (half+full duplex)
  • (CAT5e or higher)
  • Dimensions: 8.35" x 1.73" x 7.44"
  • Weight: approx. 2.2 pounds (without antennas and power supply)
• EW-DX SKM-S (handheld transmitter)
  • Input Voltage: 2.0 - 4.35 V
  • Input Current: < 300 mA
  • Power Supply: 2 AA batteries 1.5 V (alkali manganese) or BA 70 rechargeable battery pack
  • Occupied Bandwidth: 200 kHz
  • Transmit Power (radiated)
  • Audio link: 10 mW ERP
  • (Range Y1-3: 12 mW ERP)
  • LD mode: 10 mW ERP
  • BLE: max. 10 mW EIRP
  • Dimensions (ø x l): 1.97" x 10.55" including MMD 835 module
  • Weight: approx. 0.67 pounds with MMD 835 module
• EW-DX SK (bodypack transmitter)
  • Input Voltage: 2.0 - 4.35 V
  • Input Current: < 300 mA
  • Power Supply: 2 AA batteries 1.5 V (alkali manganese) or BA 70 rechargeable battery pack
  • Occupied Bandwidth: 200 kHz
  • Transmit Power (radiated)
  • Audio link: 10 mW ERP
  • (Range Y1-3: 12 mW ERP)
  • LD mode: 10 mW ERP
  • BLE: max. 10 mW EIRP
  • Dimensions: 2.5" x 3.35" x 0.79" without antenna
  • Weight: approx. 0.27 pounds without batteries