Shure BLX4 Single-Channel Wireless Receiver
Product #23353 | SKU BLX4-M17 | Shure
Usually ships in 4 - 6 weeks
Not currently for sale
Contact us for more information
Usually ships in 4 - 6 weeks


  • M17 Band (662 – 686MHz)
  • For Small Venues and Conference Rooms
  • Single-Channel, Portable Tabletop Design
  • Internal Antenna Diversity
  • Expandable to 12 Mic Channels/300' Range


The BLX4 Single-Channel Wireless Receiver from Shure is a single-channel receiver set to Shure's M17 frequency band and operates between 662 - 686 MHz. It has microprocessor-controlled internal antenna diversity for reduced signal interference and dropouts. The one-touch QuickScan frequency selection feature allows you to quickly locate the frequency with the least amount of interference available. Its front-panel dual-color LED status indicator displays green for normal levels and red when clipping for fast metering. It has an XLR output in additional to an instrument level ¼" output. The BLX4 can be used with up to 11 other compatible systems simultaneously per frequency band.


Frequency Band M17 (662 – 686MHz)
1x XLR Output
1x 1/4" (6.35 mm) Output
Output Impedance
XLR: 200 Ω
1/4": 50 Ω
Audio Output Level
XLR Connector: -27 dBV into 100kΩ Load (Reference +/-33 kHz with 1 kHz Tone)
1/4": -13 dBV into 100kΩ Load (Reference +/-33 kHz with 1 kHz Tone)
RF Sensitivity
-105 dBm for 12 dB SINAD, Typical
Image Rejection
>50 dB, Typical
Molded ABS
Power Requirement
12 to 15 V DC @ 160 mA, Supplied by External Power Supply (Tip Positive)
Dimensions (H x W x D)
1.5 x 7.4 x 4.1" (40 x 188 x 103 mm)
8.5 oz (241 g)
Shipping Weight
2.05 lb
Box Dimensions (WxHxD)
12.0 x 4.0 x 13.4

Australian Shipping Via DHL
DHL offers a great express shipping service to Australia from New Zealand. We are proud to be able to offer express shipping to main cities on the east coast of Australia, within the same timeframe ( If not quicker ) than local Australian courier companies. Prior to the Covid-19 outbreak, service standards for these main centers was overnight. However these services have been impacted greatly, and as such the overnight service has been suspended. Overnight shipping will likely resume once things have returned to normal.

Qualifying main centers include:

  • Brisbane
  • Sydney
  • Adelaide

Whilst this service is extremely efficient and will likely be delivered within 1-2 days 99.9% of the time, it cannot be guaranteed. In the case where something were to go wrong with your delivery and it doesn’t arrive within the specified time frame, in most cases it will be delivered by the next day.

While not all major cities are eligible for overnight delivery, they still benefit from this great service. Other centers throughout Australia will have a typical delivery ETA of 2-4 days. (Excluding rural delivery address where this ETA can be extended to an additional three or more days).

If you require urgent shipping and you don’t reside in one of the cities stated above, please contact us and we can find a solution that works best for you.

Please Note: Shipping via DHL is not available to PO boxes and/ or parcel boxes etc.


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  • Product: Shure BLX4 Single-Channel Wireless Receiver
  • Manufacturer: Shure
  • Model: BLX4-M17
  • SKU: BLX4-M17
  • RM Product #: 23353
  • Warranty: 2 year manufacturer warranty (excluding consumable e.g. lithium-ion batteries).

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