Shure BLX4R
The Shure BLX4R is a single-channel BLX receiver that mounts in a 19-inch rack, working with existing BLX transmitters in fixed installations.

Shure BLX4R
The Shure BLX4R is a single-channel BLX receiver that mounts in a 19-inch rack, working with existing BLX transmitters in fixed installations.
Product Description
Shure BLX4R Rack-Mount Wireless Receiver
The BLX4R is the rack-mount receiver in the BLX family. What separates it from the desktop BLX4 is that it mounts directly into a 19-inch rack cabinet, so in fixed installations it sits alongside the rest of the sound system.
This product is not a complete system on its own. It needs a BLX2 handheld or a BLX1 bodypack transmitter alongside it. For organisations that already own BLX transmitters, buying the receiver separately costs considerably less than a full set.
Rack mounted, cabling kept tidy
The rack mounting hardware and link bracket supplied with the unit secure the receiver into the cabinet. In fixed installations — conference halls, places of worship, schools and hotels — keeping the device off the table is preferred for both appearance and security.
QuickScan finds a clear frequency
QuickScan automatically scans for and selects an open frequency in the environment. There is no need to set aside time for frequency planning before an event; switching the receiver on and running a scan is enough.
Up to 12 channels in the same band
Support for up to 12 compatible channels per band allows receivers to run side by side in multi-microphone installations. How many channels you need depends on the use case; we work the frequency plan out with you before installation.
Applications
- Conference and meeting rooms
- Places of worship
- School and university halls
- Hotel ballrooms and event halls
- Expanding existing BLX installations
Working with Koz Teknoloji
Buying a receiver on its own makes sense when you already have a working BLX transmitter. Send us the band and model code of your existing system and we can identify the compatible receiver directly — ordering the wrong band is the single most common mistake here.
Technical Specifications
| Model | BLX4R |
| Product Type | Rack-mount single-channel wireless receiver |
| Mounting | 19-inch rack (mounting hardware included) |
| Required Transmitter | BLX2 handheld or BLX1 bodypack (sold separately) |
| Brand | Shure |
| Product Family | BLX Wireless System |
| Frequency Band | UHF |
| Operating Range | Up to 100 m (line of sight) |
| Frequency Response | 50 Hz - 15 kHz |
| Compatible Channels | Up to 12 channels per frequency band |
| Frequency Selection | QuickScan automatic scanning |
Use Cases
Contact us today for professional installation and a quote.
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