Sennheiser EW-D CI1 SET Digital Wireless Instrument SystemDigital Wireless Instrument System

Sennheiser EW-D CI1 SET 508731 (R1-6) – Description

The EW-D CI1 SET 508731 (R1-6) is a digital wireless instrument system from Sennheiser’s Evolution Wireless Digital lineup. It is designed for professional-stage use, allowing instruments like guitars, basses, or keyboards to transmit audio wirelessly to a receiver. The set includes a bodypack transmitter, an instrument cable (CI1), and a rack/tabletop receiver. This system provides high-quality audio, low latency, and reliable signal transmission, making it ideal for live performances, rehearsals, and studio applications.

Clean Key Features

  Wireless Technology

• Digital UHF transmission with true-diversity reception for stable signal

• Frequency band R1-6: 470.2 – 526 MHz

• Wide tuning bandwidth with numerous selectable frequencies

• Capable of supporting multiple transmitters in larger setups

  Audio Performance

• Frequency response: 20 Hz – 20 kHz for full-range instruments

• High dynamic range for clear and detailed audio

• Low system latency (~1.9 ms) for real-time performance

• Rack-mountable or tabletop design (half-rack size)

• Balanced XLR and unbalanced 1/4" outputs compatible with mixers, amplifiers, or recording gear

• LED indicators for signal strength and operational status

• Compact, durable metal housing

• 3.5 mm input for CI1 instrument cable

• Transmission power around 10 mW ERP

• Powered by 2× AA batteries with up to ~8 hours runtime, optional rechargeable battery extends runtime

  Convenience & Setup

• Automatic frequency scanning and configuration

• Easy setup and monitoring, suitable for both professional and semi-professional use

• Enables wireless mobility for performers without compromising audio quality