The Professional's Source Since 1973
  • Help
Ask Our Experts800.606.6969
Hello, Log InAccount & Orders

Join Bild Expo 2025 - Presented by B&H

Video Chat with a Pro Audio Expert - Live

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

BH #SHBLX4RH9 • MFR #BLX4R-H9
Print
Shure BLX4R Rackmount Wireless Receiver (H9: 512 to 542 MHz)
Key Features
  • For Small Venues and Conference Rooms
  • Single-Channel, Rackmount Design
  • 123 Auto-Scan Frequencies
  • Two Removable Antennas with Diversity
The Shure BLX4R is a single-channel wireless receiver compatible with the BLX1 bodypack transmitter and BLX2 handheld transmitters. It features a rugged metal chassis and, using the included hardware, can be rackmounted with the two removable antennas positioned on the front of the rack—for optimal signal reception in A/V installations and sound-reinforcement applications.
More Details

Shure BLX4R Overview

The Shure BLX4R is a single-channel wireless receiver compatible with the BLX1 bodypack transmitter and BLX2 handheld transmitters. It features a rugged metal chassis and, using the included hardware, can be rackmounted with the two removable antennas positioned on the front of the rack—for optimal signal reception in A/V installations and sound-reinforcement applications.

The BLX4R offers one-touch QuickScan frequency selection to quickly search 123 available frequencies and locate a clean RF channel in case of interference. It also employs microprocessor-controlled diversity technology to reduce dropouts. BLX systems allow up to 12 mic channels to operate simultaneously in each frequency band, at a range up to 300'.

The LCD display shows group and channel settings, and allows you to meter audio level and signal strength. An LED indicator even lets you keep an eye on the transmitter's remaining battery life. The unit offers 1/4" and XLR connectors with adjustable output level for flexible connectivity to PA systems and mixing boards.

UPC: 042406470773

Shure BLX4R Specs

Key Specs
Wireless Technology
Analog UHF
Diversity
Yes
Max Operating Range
300' / 91.4 m (Line of Sight)
Receiver Type
1x Tabletop/Rack-Mountable
Number of Audio Channels
1
System
Wireless Technology
Analog UHF
Diversity
Yes
RF Frequency Band
H9: 512 to 542 MHz
Number of RF Channel Frequencies
123
Max Operating Range
300' / 91.4 m (Line of Sight)
Max Transmitters per Band
12
Encryption
No
Timecode Support
No
Mobile App Compatible
No
Receiver
Receiver Type
1x Tabletop/Rack-Mountable
Mounting Options
Rackmount (with Included Hardware, 1 U Half-Rack)
Antenna
2x Removable 1/4 Wave External (Rear-Mount)
Number of Audio Channels
1
Audio I/O
1x XLR 3-Pin Balanced Output
1x 1/4" TS Unbalanced Output  
Network I/O
No
USB/Lightning Connectivity
No
Frequency Response
50 Hz to 15 kHz (Dependent on Mic)
Display
Backlit LCD
Power Requirements
AC/DC Power Adapter
Power
AC/DC Power Adapter
12 to 15 VDC at 260 mA, Center-Positive (Included)
Physical
Housing
Steel
Dimensions
7.8 x 2 x 6.4" / 198 x 50 x 163 mm (without Mounting Hardware, Antennas)
Weight
35.2 oz / 998 g
Packaging Info
Package Weight
6.5 lb
Box Dimensions (LxWxH)
18.4 x 14.7 x 3.8"

Shure BLX4R Reviews

See any errors on this page?

Can multiple microphones be used on this device's ...

Can multiple microphones be used on this device's one channel, and if so how many?
Asked by: John
No, a single-channel receiver can be used with one transmitter/microphone at a time.
Answered by: Lisa S
Date published: 2021-05-10

Does this thing allow multiple microphones on its ...

Does this thing allow multiple microphones on its one channel? If so, how many?
Asked by: John
This reciever will only connect to one Shure BLX microphone or body pack in the same frequency bank at a time.
Answered by: James Cruz
Date published: 2021-05-10

question

How many of the Shure BLXR receivers can be on at the same time? Not per band, in total.
Asked by: Angelo C.
Hi Angelo. With all wireless systems this largely depends on location and your surrounding RF environment. I'd suggest you contact Shure Applications Engineering at (847) 600-8440 to discuss your situation in more detail.
Answered by: Shure Rep Shure Expert
Date published: 2018-08-26
  • y_2025, m_3, d_21, h_11CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_1194983, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo