Shure

Shure BLX4=-H9 Single Channel Wireless Receiver H9 Band

Shure BLX4 wireless receiver delivers professional-grade audio with up to 300-foot range and support for 12 simultaneous channels.

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Overview

The Shure BLX4=-H9 is a single-channel wireless receiver designed as the foundation of Shure's BLX wireless system lineup. Operating in the H9 frequency band, it pairs with Shure BLX1 bodypack or BLX2 handheld transmitters to deliver professional-quality wireless audio for small venues, houses of worship, presentations, and live performances. With an operating range of up to 300 feet, the BLX4 provides the freedom to move throughout a performance space without worrying about dropouts or signal degradation.

Setup is intentionally simple — connect the included power supply, link the XLR output to your mixer or powered speaker, and sync with a matched BLX transmitter. The front panel offers intuitive controls for channel selection and signal monitoring, making it accessible even for users new to wireless audio. For larger setups, up to 12 BLX4 receivers can operate simultaneously within the same frequency band, allowing you to scale your wireless system as your needs grow. Backed by Shure's engineering pedigree and a complimentary two-year warranty, the BLX4 delivers the dependable performance that working musicians and audio technicians expect from the brand.

Key Features

H9 (512–542 MHz) UHF FREQUENCY BAND: Operates on the H9 (512–542 MHz) UHF frequency band for dependable wireless audio transmission in regions where this spectrum is authorized. Verify local compliance before ordering.

RELIABLE WIRELESS RANGE: Provides dependable audio reception up to 300 ft (91 m) line-of-sight under typical conditions, helping maintain stable wireless performance for live events and presentations.

BLX SYSTEM RECEIVER ONLY: Includes BLX4 single-channel receiver and power supply. Compatible with BLX1 bodypack and BLX2 handheld transmitters. Transmitters and microphones are sold separately.

QUICKSCAN FREQUENCY SELECTION: One-touch QuickScan frequency selection automatically finds a clean RF channel to help reduce interference during setup.

PROFESSIONAL AUDIO CONNECTIVITY: Features XLR and 1/4-inch outputs for mixers and PA systems, with LED indicators for signal status and Shure UHF design for reliable performance.

Specifications

Brand
Shure
Model
BLX4=-H9
Wireless Frequency Band
H9
Number of Channels
1
Max Channels per Band
12
Operating Range
Up to 300 ft (100 m)
Connectivity
XLR Output
Audio Output Mode
Stereo
Power Source
Included power supply (receiver); 2 AA batteries (transmitter)
Transmitter Battery Life
Up to 14 hours
Warranty
2 Years

Frequently Asked Questions

No, the BLX4 is the receiver component only. You need a compatible Shure BLX series transmitter (BLX1 bodypack or BLX2 handheld), sold separately, matched to the same H9 frequency band.
A single BLX4 unit handles one channel. However, you can run up to 12 BLX4 receivers in the same H9 frequency band for multi-channel setups.
The H9 band operates on a specific frequency range designated by Shure. Before purchasing, use the Shure Wireless Frequency Finder tool on their website to confirm the H9 band is approved and available in your region.
The BLX4 provides an XLR output for connecting to mixers, powered speakers, or audio interfaces, along with a quarter-inch headphone output for monitoring.
The package includes the BLX4 single-channel receiver, a power supply, and a user guide. A free two-year warranty is also included.