Product Overview
The Shure BLX24R/B58 Handheld Wireless System is part of the BLX wireless systems family and includes the BLX4R rack mount receiver and the BLX2/B58 handheld wireless transmitter with an integrated BETA 58A® microphone cartridge. This system operates in the H9 frequency band which covers 512 - 542 MHz.
Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.
Includes
- BLX4R Rackmount Receiver
- BLX2/B58 Handheld Wireless Transmitter
- Integrated BETA 58A® Microphone Cartridge
- Carrying Case
- Swivel Adapter
- Power Supply
- Thread Adapter
Features
- XLR and ¼" output connectors
- Microprocessor-controlled internal antenna diversity
- Two-color audio status indicator LED
- Green: Normal audio levels
- Red: Excessive audio levels (overload / clipping)
- Adjustable output level
- LCD display with detailed RF and audio metering
Specifications
- System
- Working Range: 91 m (300 ft) Line of Sight (actual range depends on RF signal absorption, reflection and interference)
- Audio Frequency Response: 50 to 15,000 Hz (dependent on microphone type)
- Total Harmonic Distortion, Ref. ±33 kHz deviation with 1 kHz tone: 0.5%, typical
- Dynamic Range: 100 dB, A-weighted, typical
- Operating Temperature: -18°C (0°F) to 57°C (135°F) (battery characteristics may limit this range)
- Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.
- BLX4R Rackmount Receiver
- Output Impedance
- XLR connector: 200 Ω
- 6.35 mm (1/4") connector: 50 Ω
- Audio Output Level, Ref. ±33 kHz deviation with 1 kHz tone
- XLR connector: –20.5 dBV (into 100 kΩ load)
- 6.35 mm (1/4") connector: –13 dBV (into 100 kΩ load)
- RF Sensitivity: -105 dBm for 12 dB SINAD, typical
- Image Rejection: >50 dB, typical
- Dimensions (H x W x D): 1.65 in. X 7.80 in.X 6.42 in. (42 mm X 198 mm X 163 mm)
- Weight, without antennas: 2.2 lbs (998 g)
- Housing: Molded ABS, steel
- Power Requirements: 12–15 V DC @ 260 mA, supplied by external power supply (tip positive)
- BLX2 Handheld Transmitter
- Audio Input Level
- 0dB: -20 dBV maximum
- -10dB: -10 dBV maximum
- Gain Adjustment Range: 10 dB
- RF Transmitter Output: 10 mW, typical (varies by region)
- Dimensions (L x Dia.): 8.82 in. X 2.09 in. (224 mm X 53 mm)
- Weight, without batteries: 7.7 oz. (218 g)
- Housing: Molded ABS
- Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
- Battery Life: up to 14 hours (alkaline)
- Beta 58A Microphone Capsule
- Type: Dynamic (moving coil)
- Frequency Response: 50 to 16,000 Hz
- Polar Pattern: Supercardioid
- Output Impedance: EIA rated at 150 Ω (290 Ω actual)
- Sensitivity, at 1kHz, open circuit voltage: -51.5 dBV/Pa (2 .6 mV)[1]
- Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
