Why Choose Crutchfield?
Great gear and expert advice
Our experts help you pick the ideal gear for your needs.Meet our advisors
Free tech support for the life of your gear.Read about our one-on-one expert help
You may return items that are complete and like new for any reason within 60 days.See the details of our return policy
Earn one point for every dollar you spend and use those points to save on future purchases.Get full details on Crutchfield Rewards
Deep discounts on car installation gear
We offer vehicle-specific installation instructions, dash kits, wiring harnesses, and speaker accessories at deeply discounted prices with car stereo and speaker purchases. Available for most vehicles.Learn more
Trusted since 1974
Our customers have trusted us with their business, and they’ve helped us win awards for our service.Check out our most recent awards
The manufacturer’s warranty always applies.See more details
Single channel wireless receiver (584-608MHz, Band J10)
Item # 183BL4J | MFR # BLX4=-J10
This item is no longer available.
Our take on the Shure BLX4 by Crutchfield's Bob Bihlmayer
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.
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.
What's in the Box:
- BLX4 Single-channel receiver
- Power supply
- single-channel wireless receiver
- operating range: 300' (line of sight)
- simple frequency matching with BLX transmitters
- 584-608MHz (Band J10)
- XLR and 1/4" outputs
- frequency response: 50-15,000 Hz
- dimensions: 1.57" H x 7.4" W x 4" D
- weight: 8.5 oz.
- warranty: 2 years
- Our 60-day money-back guarantee
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.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.