Shure BLX24/SM58: Handheld Wireless Microphone System

Shure BLX24/SM58: Handheld Wireless Microphone System The Shure BLX24/SM58 is an entry-level professional wireless handheld microphone system designed for live vocal performance, houses of worship, corporate presentations, and educational facilities. Combining the legendary acoustic profile of the SM58 dynamic cardioid microphone capsule with an accessible analogue wireless architecture, it delivers dependable RF stability, straightforward frequency coordination, and long battery endurance in an intuitive tabletop format. Industry-Standard SM58 Capsule and BLX2 Handheld Transmitter The handheld transmitter (BLX2) is fitted with the classic Shure SM58 dynamic microphone capsule, tailored specifically for vocal clarity with a brightened midrange presence peak and controlled low-frequency roll-off. Its uniform cardioid polar pattern isolates the primary vocal source while rejecting off-axis ambient sound, significantly reducing the likelihood of acoustic feedback on loud live stages. Constructed from lightweight, impact-resistant moulded ABS polymer, the BLX2 transmitter incorporates an integrated dynamic gain adjustment pad (10 dB attenuation) to prevent clipping when handling powerful vocalists. Powered by two standard AA alkaline batteries, the transmitter provides up to 14 hours of continuous operation, making it well suited for full-day corporate seminars or multi-set performance events. QuickScan Frequency Management and Diversity Reception Signal reception is handled by the compact BLX4 single-channel tabletop receiver, which employs microprocessor-controlled internal antenna diversity. By continuously monitoring and selecting the cleanest RF antenna path, the internal diversity design minimizes signal dropouts and RF multipath interference across an operational line-of-sight range of up to 100 metres. Frequency selection is streamlined via Shure's one-touch QuickScan technology. With a single button press, the receiver automatically sweeps the local spectrum to identify and lock onto the cleanest open channel, which can then be matched manually on the transmitter. Depending on the local Australian frequency band allocation (such as the K14 or M17 bands), the system supports up to 12 compatible channels operating simultaneously per frequency band. Technical Specification Overview Feature Detail System Model BLX24/SM58 (Comprising BLX4 Receiver and BLX2/SM58 Transmitter) Operating Principle Analogue UHF Wireless System Microphone Capsule Shure SM58 (Dynamic, Cardioid Polar Pattern) Audio Frequency Response 50 Hz to 15,000 Hz Dynamic Range 100 dB (A-Weighted) Operating Range Up to 100 metres (Line of sight) RF Tuning Bandwidth 24 MHz (Band dependent, e.g., K14: 614-638 MHz, M17: 662-686 MHz) Compatible Systems Up to 12 compatible channels per band Receiver Audio Outputs 1 x 3-Pin Balanced XLR (200 ohms), 1 x 6.35 mm Unbalanced Instrument (50 ohms) Transmitter Battery Type 2 x AA Alkaline or Rechargeable Batteries Transmitter Battery Life Up to 14 Hours continuous run time Receiver Dimensions (W x D x H) 188 mm x 103 mm x 40 mm System Weight 241 grams (Receiver), 218 grams (Transmitter without batteries) See manufacturer website for specific product warranty information.