
Shure BLX4R=-H9 Rack Mount Wireless Receiver H9 Band
Shure BLX4R rack-mount wireless receiver delivers reliable, professional-grade audio with up to 300-foot range and 12-channel expansion.
*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.
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Overview
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.
EXTENDED WIRELESS RANGE: Provides dependable audio reception up to 300 ft (91 m) line-of-sight under typical conditions, helping maintain stable wireless performance for stage events and presentations.
BLX SYSTEM RECEIVER ONLY: Includes BLX4R rack-mount receiver, antennas, rack hardware, 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 the best available RF channel to help reduce interference during setup.
PROFESSIONAL RACKMOUNT CONNECTIVITY: Features XLR and 1/4-inch outputs, adjustable output level, LCD display, and LED audio indicators, built with Shure UHF design for reliable performance.
Specifications
Pros & Cons
👍 Pros
- Rack-mountable design with included hardware keeps installations clean and organized
- Supports up to 12 simultaneous channels per frequency band for multi-performer scalability
- Dual output options with both XLR and 1/4-inch jacks for flexible connectivity
- Simple, intuitive interface allows quick frequency selection and setup
- Shure build quality and engineering backed by a 2-year warranty
👎 Cons
- Receiver only — requires a separate BLX series transmitter to function, adding to total system cost
- Must carefully match the H9 frequency band to your transmitter and verify regional compatibility before purchasing
- Single-channel design means you need one unit per wireless source, which increases rack space for larger setups
- No built-in rechargeable battery system for paired transmitters — relies on disposable AA batteries