Name: Shure BLX4
Brand: Shure
SKU: 183BL4J

Receiver for BLX systems

Shure's BLX4 wireless transmitter is part of the BLX family of digital wireless systems. The BLX4 is a single-channel wireless receiver which features simple frequency matching with Shure's BLX line of transmitters. Its XLR and 1/4" outputs allow use with a variety of systems. Whether you're miking a vocalist or an instrument, the BLX4 is ready to receive.

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Receiver for BLX systems

When considering a wireless system, you'll want to pick the frequency band with the least interference from local TV stations. Shure's Wireless Frequency Finder will show you the TV stations in your area, along with a list of recommended channels. Choose the frequency band that gives you the most open channels.

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Highlights:

single-channel wireless receiver
operating range: 300' (line of sight)
simple frequency matching with BLX transmitters

Electronic features:

584-608MHz (Band J10)
XLR and 1/4" outputs
frequency response: 50-15,000 Hz

General features:

dimensions: 1.57" H x 7.4" W x 4" D
weight: 8.5 oz.
warranty: 2 years
MFR # BLX4=-J10

What's in the box:

Shure BLX4 owner's manual

BLX4 Single-channel receiver
Power supply

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Researched by Crutchfield's Russ B.

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Features

Single Channel Wireless Receiver (for BLX Wireless Systems): The Shure BLX4 is a single channel wireless receiver designed specifically for Shure's BLX wireless systems (transmitters & mics, sold separately). The BLX4 features simple setup, intuitive controls, and microprocessor-controlled internal antenna diversity. Shure BLX wireless systems have a range up to 300'. Up to 12 BLX wireless systems can operate simultaneously.

Frequency Bands: This model BLX4 wireless receiver works on the J10 (584-608MHz) frequency band. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. When purchasing separate wireless components, please match their frequency bands to ensure proper system operation. Different Shure BLX wireless systems operate on a variety of frequency bands, including:

H8 (518-542MHz)
J10 (584-608MHz)
K12 (614-638MHz)
M15 (662-686MHz)

Connectors: The Shure BLX4 is fitted with one XLR Mic output and one 1/4" Instrument output to connect the wireless receiver to your mixer or amplifier.

Connector Type	Output Impedance	Audio Output Level
XLR	200 Ω	-27 dBV (into 100 kΩ load)
1/4"	50 Ω	-13 dBV (into 100 kΩ load)

LED Indicator: The BLX4 features a two-color audio status indicator LED. Green indicates normal audio levels, while Red indicates excessive audio levels (overload/clipping).

AC Power: The BLX4 operates off of standard household current using the supplied external AC power adapter.

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