Sennheiser EW-D SK Wireless Body Pack Base System - Q1-Q6

The Sennheiser 508740 is a wireless bodypack system designed for musicians, presenters, theatre crews, and live sound engineers who need dependable performance without a complicated setup. The package combines the EW-D SK bodypack transmitter with a half-rack receiver and includes the hardware you need for rack mounting, so it drops easily into a touring rig or a permanent installation.

Getting started is quick. Power up the receiver, let the automatic scan find a clear spot within the 56 MHz tuning range, and pair the transmitter. For even faster control, connect your phone over Bluetooth and use the free Smart Assist app to name channels, adjust gain, or keep an eye on battery life from anywhere in the venue.

During the show, the system delivers up to 134 dB of dynamic range with latency of just 1.9 ms, so speech stays intelligible and instruments feel responsive. You can run as many as 90 channels at once, making the setup practical for multi-mic theatre productions, worship teams, or conference panels.

The bodypack works with lavalier microphones, headset microphones, and instrument cables that are sold separately, giving you flexibility from one performance to the next. Two AA batteries provide up to eight hours of operation, and an optional rechargeable pack extends run time to roughly twelve hours. With a line-of-sight range of about 328 feet, performers can move across large stages or down audience aisles without worrying about dropouts.

Highlights:

• Includes EW-D SK bodypack transmitter and half-rack receiver with rackmount kit
• Digital UHF transmission that resists interference and keeps audio clear
• 134 dB dynamic range with 1.9 ms latency suitable for live music and spoken word
• Automatic frequency scan plus Bluetooth control through the Smart Assist app
• Operates across 56 MHz bandwidth and supports up to 90 simultaneous channels
• Accepts lavalier or headset microphones and instrument cables, each sold separately
• Runs about 8 hours on two AA batteries or up to 12 hours with an optional rechargeable pack
• Approximate 328 ft line-of-sight operating range
• More than 2,200 selectable frequencies for fine tuning in crowded RF environments