What frequency range does the U1/5 band cover?

The U1/5 band specifically covers the 823.2 to 831.8 MHz and 863.2 to 864.8 MHz frequency ranges. This makes it suitable for use in regions where these specific bands are cleared for wireless microphone operation.

What is the benefit of the E-Ink display?

The E-Ink display remains visible even when the transmitter is powered off. This allows technicians to check channel assignments or battery status without having to turn every unit on, saving time during setup.

How long does the battery last on the EW-DX SK?

The transmitter provides up to 12 hours of continuous use. This long battery life is designed to last through full event days or multiple performances without needing a recharge or battery change.

What type of microphone connector does this bodypack use?

It uses a 3.5 mm locking jack connector. This is a standard Sennheiser connection type, making it compatible with a wide variety of Sennheiser-branded lavalier and headset microphones.

What is the RF output power of this device?

The EW-DX SK features a fixed RF output of 10 mW. This provides a balance between reliable signal transmission and battery efficiency for professional applications.

Does this system use digital or analogue transmission?

The EW-DX SK uses digital transmission. This technology offers clearer audio by removing the need for a compander and provides better protection against interference compared to traditional analogue systems.

Is the housing made of plastic or metal?

The transmitter is housed in a rugged metal casing. This construction is specifically chosen to withstand the physical demands of live touring and professional stage environments.

Does the EW-DX SK support automatic frequency setup?

Yes, it includes an AutoScan feature. This function automatically searches for and selects clear frequencies, significantly simplifying the setup process for the user.

Can I manage this transmitter remotely?

Yes, it is compatible with Sennheiser’s EW-DX remote management systems. This allows sound engineers to monitor and configure the transmitter settings from a central control point.

What is included in the EW-DX ecosystem?

The EW-DX ecosystem includes compatible receivers, handheld transmitters, and bodypacks like the SK. It also integrates with software tools for large-scale wireless coordination.

How does the EW-DX SK compare to the Shure SLXD+?

Both are professional digital wireless systems, but the EW-DX SK features a unique E-Ink display and specific frequency band options like U1/5. Choice often depends on existing microphone inventory and preferred management software.

Is this transmitter compatible with other wireless series?

The EW-DX SK is designed specifically for use within the Sennheiser EW-DX digital system. It is not directly compatible with analogue Evolution Wireless (G3/G4) receivers due to the digital transmission technology.

Gear article

Sennheiser EW-DX SK Wireless Bodypack Transmitter (U1/5 Band)

The Sennheiser EW-DX SK is a professional digital wireless bodypack transmitter designed for the EW-DX ecosystem, operating on the U1/5 frequency band (823.2–831.8 MHz and 863.2–864.8 MHz). Encased in a rugged metal housing, it features a locking 3.5mm connector and delivers up to 12 hours of operation for presenters and performers.

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Overview

The Sennheiser EW-DX SK is a core component of the Evolution Wireless Digital (EW-DX) series, specifically engineered to meet the demands of professional engineers, presenters, and live performers. This bodypack transmitter is notable for its digital architecture, which eliminates the need for traditional companders, resulting in a cleaner signal path. It operates within the U1/5 frequency range, covering segments between 823.2 MHz and 864.8 MHz, ensuring compliance in specific regional spectrum environments.

Construction and Display

Built for the rigours of touring and daily stage use, the EW-DX SK features a robust metal chassis. One of its most distinctive physical features is the E-Ink display. Unlike traditional LCD or LED screens, the E-Ink technology allows essential system information to remain visible on the screen even when the unit is powered off, which is highly beneficial for engineers managing multiple packs in a dark backstage environment. The unit uses a standard 3.5 mm locking connector, ensuring compatibility with a wide range of Sennheiser lavalier and headset microphones.

Operational Features

The EW-DX SK is designed for efficiency and ease of use in complex wireless environments.

AutoScan: The system includes an automatic scanning feature that identifies and selects clear, interference-free frequencies.
Digital Transmission: It provides a fixed 10 mW RF output, delivering a stable and consistent signal across its operating range.
Power Management: The transmitter supports long sessions with up to 12 hours of continuous use, reducing the need for mid-event battery swaps.
Remote Management: The device is fully compatible with Sennheiser’s EW-DX remote management software, allowing for centralised control of larger wireless deployments.

Sound Character and Performance

As a digital transmitter, the EW-DX SK offers a transparent audio character. By avoiding the analogue compansion process (compression and expansion) used in older wireless systems, it maintains the natural dynamics and frequency response of the connected microphone. This results in a 'wired' sound quality that is suitable for high-fidelity vocal reproduction, whether used for spoken word or musical theatre.

Target Audience and Applications

This bodypack is primarily intended for professional users who require a scalable and reliable wireless solution. It is ideal for:

Corporate Presenters: Who need discrete, reliable audio for long conferences.
Musical Theatre: Where ruggedness and long battery life are essential for back-to-back performances.
Sound Engineers: Who benefit from the E-Ink display and remote management capabilities when coordinating multi-channel setups.

Comparison to Alternatives

When compared to entry-level systems like the Shure BLX24R/B58-S8 or the Trantec S4.1, the EW-DX SK offers superior build quality and the advantages of digital transmission. While the Shure SLXD+ series provides a similar digital experience, the EW-DX system distinguishes itself with the E-Ink display and Sennheiser's specific U1/5 frequency band management. For users requiring complex rackmount configurations, it competes alongside high-density solutions like the Trantec S5.5, but with modern remote management software support.

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Frequently asked questions

What frequency range does the U1/5 band cover?: The U1/5 band specifically covers the 823.2 to 831.8 MHz and 863.2 to 864.8 MHz frequency ranges. This makes it suitable for use in regions where these specific bands are cleared for wireless microphone operation.
What is the benefit of the E-Ink display?: The E-Ink display remains visible even when the transmitter is powered off. This allows technicians to check channel assignments or battery status without having to turn every unit on, saving time during setup.
How long does the battery last on the EW-DX SK?: The transmitter provides up to 12 hours of continuous use. This long battery life is designed to last through full event days or multiple performances without needing a recharge or battery change.
What type of microphone connector does this bodypack use?: It uses a 3.5 mm locking jack connector. This is a standard Sennheiser connection type, making it compatible with a wide variety of Sennheiser-branded lavalier and headset microphones.
What is the RF output power of this device?: The EW-DX SK features a fixed RF output of 10 mW. This provides a balance between reliable signal transmission and battery efficiency for professional applications.
Does this system use digital or analogue transmission?: The EW-DX SK uses digital transmission. This technology offers clearer audio by removing the need for a compander and provides better protection against interference compared to traditional analogue systems.
Is the housing made of plastic or metal?: The transmitter is housed in a rugged metal casing. This construction is specifically chosen to withstand the physical demands of live touring and professional stage environments.
Does the EW-DX SK support automatic frequency setup?: Yes, it includes an AutoScan feature. This function automatically searches for and selects clear frequencies, significantly simplifying the setup process for the user.
Can I manage this transmitter remotely?: Yes, it is compatible with Sennheiser’s EW-DX remote management systems. This allows sound engineers to monitor and configure the transmitter settings from a central control point.
What is included in the EW-DX ecosystem?: The EW-DX ecosystem includes compatible receivers, handheld transmitters, and bodypacks like the SK. It also integrates with software tools for large-scale wireless coordination.
How does the EW-DX SK compare to the Shure SLXD+?: Both are professional digital wireless systems, but the EW-DX SK features a unique E-Ink display and specific frequency band options like U1/5. Choice often depends on existing microphone inventory and preferred management software.
Is this transmitter compatible with other wireless series?: The EW-DX SK is designed specifically for use within the Sennheiser EW-DX digital system. It is not directly compatible with analogue Evolution Wireless (G3/G4) receivers due to the digital transmission technology.