Shure BLX4R Rackmount Wireless Receiver (H9: 512 to 542 MHz)

The Shure BLX4R=-H9 is a UHF wireless receiver that handles a single audio channel in the 512 to 542 MHz band. Built around a steel chassis that slides straight into a standard rack, it delivers dependable performance for touring rigs, houses of worship, conference rooms, and mobile sound setups.

QuickScan technology surveys the airwaves and chooses the clearest option from 123 available frequencies, so setup takes seconds even in busy RF environments. A microprocessor manages antenna diversity, automatically switching between the two included antennas to keep your signal steady. If you need multiple microphones, you can run as many as 12 BLX systems on the same H9 band without frequency clashes.

The backlit LCD puts group, channel, RF strength, audio level, and transmitter battery life in plain view, and an overload LED warns you before distortion can creep in. On the rear panel, balanced XLR and unbalanced 1/4 inch outputs make it easy to feed mixers, powered speakers, or recording gear. An adjustable output level helps you match gain without extra attenuators.

The receiver ships with a full rackmount kit, including hardware that lets you move the detachable antennas to the front of the rack for better line of sight. Whether you are mixing a Sunday service, running corporate presentations, or DJing a wedding, the BLX4R=-H9 supplies the wireless clarity and confidence that keep the show moving.

Highlights:

• Operates in the 512 to 542 MHz H9 frequency band
• QuickScan selects the cleanest of 123 frequencies
• Supports up to 12 compatible systems per band
• Microprocessor controlled antenna diversity limits dropouts
• Backlit LCD with RF, audio, group, channel, and battery indicators
• Balanced XLR and unbalanced 1/4 inch audio outputs
• Detachable antennas can be front mounted with the supplied kit
• Chassis made of steel with rackmount hardware included