Gear article

Shure SLXD+ Wireless Bodypack System K55

The Shure SLXD+ Wireless Bodypack System K55 is a professional digital wireless solution designed for hands-free audio in demanding environments such as theatres, houses of worship, and corporate venues. Built on the established SLX-D platform, it provides 24-bit digital audio clarity and stable RF performance using the K55 frequency band.

See live prices

Background and Development

The SLXD+ series represents an evolution of Shure's mid-tier digital wireless offerings. By building upon the SLX-D platform, Shure aimed to bridge the gap between entry-level analogue systems and high-end touring gear. This specific K55 variant is engineered to provide a broad tuning range, allowing users to find clear channels even in RF-congested urban environments.

Technical Features and Performance

At the core of the system is 24-bit digital audio processing, which ensures a wide dynamic range and natural sound reproduction. The system utilises a bodypack transmitter designed for use with various microphones or instrument cables.

A standout feature is the inclusion of ShowLink technology. This allows for practical control from the receiver side, enabling technicians to manage transmitter settings remotely. For sensitive applications, the system supports AES-256 encryption, ensuring that the wireless transmission remains secure and private.

Sound Character

The sound profile of the SLXD+ is characterised by its transparency. Unlike traditional analogue wireless systems that may suffer from companding artefacts, the digital nature of this system maintains the integrity of the original source. This makes it particularly suitable for presenters and performers who require their natural vocal timbre to be preserved through the signal chain.

Comparison and Suitability

The SLXD+ K55 sits above entry-level systems like the Shure BLX series, offering more robust RF stability and higher audio fidelity. While it is more affordable than flagship touring systems, it retains critical professional features like rack-mounting capabilities and networked control.

It is an ideal choice for: * Corporate event spaces requiring secure communication. * Theatres and houses of worship needing reliable hands-free operation. * Educational institutions looking for a durable, scalable wireless solution.

Related gear

Frequently asked questions

What is the primary benefit of the K55 frequency band?
The K55 band offers a broad tuning range, which makes it significantly easier to coordinate multiple channels and avoid local interference in busy RF environments.
Does this system provide audio encryption?
Yes, the system features AES-256 encryption. This ensures that the wireless signal is secure and protected against unauthorised eavesdropping, which is vital for corporate and government use.
What is ShowLink technology in the SLXD+?
ShowLink provides remote control capabilities, allowing the user to manage transmitter settings directly from the receiver without needing to physically access the bodypack during a performance.
What is the audio resolution of the Shure SLXD+?
The system delivers high-quality 24-bit digital audio, providing a clear and natural sound that accurately represents the performer's voice or instrument.
How does the SLXD+ compare to the Shure BLX series?
The SLXD+ offers superior digital audio quality, better RF stability, and more advanced features like ShowLink and encryption compared to the more entry-level, analogue BLX series.
Can this system be used for instruments?
Yes, while often used with lapel or headset mics, the bodypack can be used with instrument cables (sold separately) to wirelessly connect guitars or other instruments.
What power options are available for the bodypack?
The system offers flexible power options, typically supporting standard AA batteries or Shure's proprietary lithium-ion rechargeable batteries for longer run times.
Is the SLXD+ K55 suitable for large-scale venues?
Yes, it is designed for venues such as houses of worship, theatres, and corporate event spaces that require consistent and dependable wireless performance.
What is the typical price range for this system?
The Shure SLXD+ Wireless Bodypack System K55 is typically priced around £692.
How does the K55 variant handle interference?
Due to its wide tuning range and digital signal processing, it is highly effective at working around interference even in locations with many competing wireless signals.
Does the system include a microphone?
This specific configuration is a bodypack system; depending on the bundle, it may require a separate TA4F-connected microphone like the Shure PGA98H.
Can I rack-mount the SLXD+ receiver?
Yes, the receiver is designed for professional use and includes the necessary hardware for standard rack-mounting in equipment racks.