Gear article

Shure SLXD+ Wireless Handheld Microphone System with SM58 (K55)

The Shure SLXD+ is a professional-grade digital wireless system designed for high-performance live vocals and installed sound applications. It pairs the industry-standard SM58 dynamic microphone capsule with the advanced SLX-D+ digital platform, operating within the K55 frequency band to provide secure, high-resolution audio transmission.

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Overview and Construction

The Shure SLXD+ system represents an evolution in digital wireless technology, focusing on reliability and ease of use for professional environments. The hardware consists of a robust metal receiver and a handheld transmitter equipped with the legendary SM58 capsule. By utilising the SLX-D+ digital platform, the system addresses the needs of modern RF environments, offering wide tuning coverage and efficient channel allocation to support multiple simultaneous systems without interference.

Key Features and Technology

A primary feature of the SLXD+ series is the integration of ShowLink remote control, which allows for advanced management of transmitter parameters. For sensitive environments such as corporate boardrooms or government facilities, the system includes AES-256 encryption to ensure secure audio transmission. The K55 frequency band operation ensures the system can navigate crowded spectrums effectively, while the digital architecture maintains a high level of audio transparency throughout the signal chain.

Sound Character

The audio profile is defined by the SM58 capsule, known for its warm, clear mid-range and a controlled bass roll-off that minimises the proximity effect. Because the SLXD+ platform uses digital transmission, it avoids the sonic artefacts often associated with analogue companding. This results in a consistent sound that remains faithful to the original dynamic source, suitable for both spoken word and high-energy vocal performances.

Application and Suitability

The SLXD+ SM58 system is engineered for a variety of demanding settings. It is particularly well-suited for:

  • Live Venues and Stages: Where dependable RF performance is critical.
  • Houses of Worship: Providing clear vocal reproduction for services.
  • Corporate Applications: Leveraging encryption for secure presentations.
  • Educational Institutions: Offering intuitive controls for varied users.

Comparative Analysis

When compared to other industry standards, the SLXD+ sits as a high-tier digital alternative to traditional analogue systems. While the Shure Beta 58A offers a brighter top end and a tighter supercardioid pattern, the SM58 included here provides a more familiar, classic cardioid response. Against competitors like the Sennheiser e935 or e945, the SLXD+ distinguishes itself with the proprietary SLX-D+ digital feature set and ShowLink integration, though it maintains the rugged 'tour-ready' build quality expected of top-tier brands.

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Frequently asked questions

What capsule is included with this SLXD+ system?
This specific system is equipped with the Shure SM58, a legendary dynamic cardioid microphone capsule known for its durability and balanced vocal reproduction.
What is the K55 designation in the product name?
K55 refers to the specific frequency band in which the wireless system operates, allowing for wide tuning coverage and efficient channel allocation in that range.
Does this system offer secure transmission?
Yes, the SLXD+ system features AES-256 encryption, which ensures that the wireless audio signal is secure and protected from unauthorised interception.
What is Shure ShowLink?
ShowLink is a remote control technology that allows users to manage and make adjustments to transmitter parameters remotely from the receiver or a networked computer.
Is the hardware made of plastic or metal?
The SLXD+ system features robust metal hardware construction for both the receiver and the transmitter to withstand the rigours of professional use.
Can I use multiple SLXD+ systems at the same time?
Yes, the system is designed for efficient channel allocation, making it ideal for multi-system setups in large venues or corporate environments.
How does digital wireless compare to analogue wireless?
Digital wireless systems like the SLXD+ typically offer clearer audio with a flatter frequency response because they do not require the companding process used in analogue systems.
Is the SM58 capsule interchangeable?
The system uses Shure’s standard threaded capsule design, meaning the SM58 head can be swapped for other compatible Shure capsules if your needs change.
What applications is the SLXD+ best suited for?
It is designed for live vocal performances, corporate presentations, houses of worship, and professional installed sound environments.
What is the typical price for this system?
The Shure SLXD+ Wireless Handheld Microphone System with SM58 generally retails for approximately GBP 789.
Does the system include a dynamic or condenser microphone?
The included SM58 is a dynamic microphone, which is preferred for its ability to handle high sound pressure levels and its ruggedness on stage.
How does this compare to the Shure Beta 58A?
The SM58 has a cardioid polar pattern and a warmer sound, whereas the Beta 58A has a supercardioid pattern and increased sensitivity in the high frequencies.