Sennheiser EW-DX SK 3-Pin Bodypack Transmitter (R1-9: 520-607.8 MHz)

Professional 3-pin bodypack transmitter for Sennheiser EW-DX wireless systems

The Sennheiser EW-DX SK 3-Pin is a professional bodypack transmitter for the Sennheiser Evolution Wireless Digital X (EW-DX) platform, equipped with a 3-pin input connector for Sennheiser professional lavalier and headset microphones. The R1-9 frequency variant operates in the 520-607.8 MHz band and ships with two AA batteries for immediate use.

The 3-pin connector is the standard for Sennheiser's professional-tier microphones, including the MKE 1, HSP, and other models that use the 3-pin locking connector. This distinguishes the EW-DX SK 3-Pin from the mini-jack version, which accepts Evolution Wireless-style lavalier connectors. Choosing the correct connector type ensures compatibility with your microphone inventory and avoids the need for adapter cables.

Key Features

• EW-DX bodypack transmitter with 3-pin microphone input
• R1-9 frequency range: 520-607.8 MHz
• Compatible with Sennheiser professional 3-pin lavalier and headset microphones
• High-quality digital audio transmission with wide dynamic range
• Powered by two AA batteries (included)
• Part of the Sennheiser EW-DX wireless ecosystem

Professional Applications

Commonly deployed in church, house of worship, and professional AV environments.

• Touring and live event lavalier and headset wireless channels
• Broadcast and theater bodypack wireless systems
• Worship installations using Sennheiser professional microphones
• Expanding existing EW-DX systems with additional bodypack channels

Frequently Asked Questions

What is the difference between the 3-pin and mini-jack versions?

The 3-pin version accepts Sennheiser professional microphones with the 3-pin locking connector (MKE 1, HSP series). The mini-jack version accepts Evolution Wireless-style microphones with a 3.5mm locking connector. Choose the version that matches your microphone inventory.

Do I need a specific EW-DX receiver for this transmitter?

Yes. The EW-DX SK pairs with EW-DX receivers (EM). Ensure the receiver is in the same frequency range (R1-9: 520-607.8 MHz) for compatibility.

Related Equipment and Workflow Compatibility

The EW-DX SK 3-Pin works with EW-DX EM receivers in the matching frequency range and Sennheiser professional 3-pin microphones. It is part of the broader EW-DX wireless ecosystem alongside handheld and tabletop transmitter options.

Why Professionals Use This Type of Product

• 3-pin input directly accepts Sennheiser's highest-tier lavalier microphones
• EW-DX digital platform provides wide dynamic range and robust RF
• AA battery operation with optional BA 70 rechargeable pack
• Scalable within the EW-DX ecosystem for multi-channel deployments

Additional Compatibility Information

The Sennheiser EW-DX SK 3-Pin is a bodypack transmitter for the EW-DX wireless platform with a 3-pin microphone input, operating in the R1-9 (520-607.8 MHz) frequency range with AA battery power.