SENNHEISER EW-DX SKM (Q1-9)

With an ultra-low latency of just 1.9 ms and AES 256 encryption, the Sennheiser EW-DX SKM (Q1-9) delivers uncompromising digital wireless performance for professional live sound and broadcast applications.

Overview

Part of the Evolution Wireless Digital series, this handheld transmitter operates in the Q1-9 frequency band (470.2 - 550 MHz) with a switching bandwidth of 88 MHz. It is designed for use with Sennheiser EW-DX receivers and compatible microphone capsules, offering pristine audio quality and robust RF transmission.

What stands out

• Digital transmission with 134 dB dynamic range and ≤ -60 dB THD for crystal-clear audio
• Ultra-low latency of 1.9 ms for real-time monitoring and performance
• AES 256 encryption ensures secure wireless communication
• Flexible power options: 2x AA batteries or BA 70 rechargeable pack, up to 12 hours runtime
• OLED display for easy status monitoring and menu navigation
• Bluetooth Low Energy for fast synchronization with receivers
• Durable aluminum housing with adjustable input sensitivity (0 to -42 dB in 3 dB steps)

Technical details

• Frequency range: 470.2 - 550 MHz (Q1-9 band)
• Switching bandwidth: 88 MHz
• RF output power: 10 mW (ERP)
• Audio frequency response: 20 Hz - 20 kHz (-3 dB)
• Dynamic range: 134 dB
• Total harmonic distortion: ≤ -60 dB @ 1 kHz, -3 dBFS
• Latency: 1.9 ms
• Encryption: AES 256
• Battery: 2x AA (alkaline/lithium) or BA 70 rechargeable pack
• Battery life: up to 12 hours (AA)
• Display: OLED
• Housing: Aluminum
• Microphone capsule compatibility: Sennheiser standard capsules (e.g., MMD 835, MMD 935)
• Charging: USB-C port or optional CHG 70N charger
• Operating temperature: -10 °C to +55 °C
• Synchronization: Bluetooth Low Energy (BLE)
• Input sensitivity: adjustable 0 dB to -42 dB in 3 dB steps
• System compatibility: Sennheiser EW-DX series

Our verdict

The EW-DX SKM (Q1-9) combines Sennheiser's renowned audio quality with advanced digital features, making it an excellent choice for demanding wireless microphone applications where reliability and security are paramount.