BLX14/SM31 Wireless Headset System

BLX14/SM31 Wireless Headset System
	BLX14/SM31 Wireless Headset System BLX Wireless Headset System
Included: BLX4 single channel wireless receiver; BLX1 bodypack transmitter; SM31FH Headset Condenser Microphone; PS23 power supply and URT2 rack tray (optional accessories).

	SM31FH Fitness Headset Condenser Microphone Wireless headset microphone featuring moisture-repelling hydrophobic construction for use in fitness instruction. Best suited to: Vocals
The new SM31FH adds hydrophobic materials to the industry-standard, road-tested Shure SM family in a rugged and durable cardioid condenser microphone. TA4F 4-pin connectors make it a viable replacement for any existing Shure wireless headset system, and is also available with BLX wireless system bundles. The moisture-repelling cartridge housing protects the microphone and ensures a long lifetime of use, all but eliminating the need to frequently replace typical headsets.
Features
Wearable wireframe headset with secure, comfortable fit made for fitness and aerobics instructors Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments Flexible gooseneck provides discrete adjustment options to optimize placement for greatest isolation Lightweight and low-profile form factors stave off fatigue during high-impact use Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones Available with a wide range of Shure wireless systems, renowned for ease of use and reliable performance Included windscreen tames plosive, breath and wind noises for clean and intelligible sound Tailored frequency response refined for crisp and clear vocal reproduction Legendary Shure precision engineering for durability and performance

	BLX1 Bodypack Transmitter The BLX1 bodypack has a lightweight and durable design. Ergonomically designed to fit comfortably in hand, with adjustable gain control. For use with BLX Wireless systems.
The BLX1 bodypack has a lightweight and durable design. Ergonomically designe
Features
Up to 14 hours of continuous use with 2 AA batteries (included) Up to 300 ft (100 m) transmission radius Quick and easy receiver frequency matching TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables Toggle on/off switch Adjustable gain control of 26dB (+10 to -16dB) Lightweight, rugged construction

	BLX4 Single Channel Receiver The BLX4 single channel wireless receiver is a durable receiver with simple set-up, intuitive controls and microprocessor-controlled internal antenna diversity. One-touch QuickScanfrequency selection quickly locates the bestfrequency, enabling simple set-up.
The BLX4 single channel wireless receiver is a durable receiver with simple set-up, intuitive controls and microprocessor-controlled internal antenna diversity. One-touch QuickScan frequency selection quickly locates the best frequency, enabling simple set-up.
Features
One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference) Up to 12 compatible systems per frequency band (region-dependent) 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) Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.

Technical Data

SM31FH Fitness Headset Condenser Microphone
Transducer Type	Condenser
Polar Pattern	Cardioid
Frequency Response	45 Hz – 20 KHz
Sensitivity (dBV/Pa)	-50 dBV/Pa
Weight	60 g
Output Impedance	600 Ω @ 1 kHz
Signal-To-Noise Ratio	66 dB @ 1 kHz
Maximum SPL	145.0 dB 1000 Ω load, @ 1% THD
Dynamic Range	117.0 dB @ 1 kHz, 1000 Ω load
Equivalent Output Noise	28 dB Typical, A-Weighted
Power Requirements	+5 V DC (nominal), 10 V maximum (DC bias)
Polarity	Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1
Cable	1.1 m (45 in.)
Connector	TA4F

BLX1 Bodypack Transmitter
Transmitter Type	Bodypack
Audio Input Level	gain max -16 dBV maximum gain min (0 dB) +10 dBV maximum
Gain Adjustment Range	26 dB
Input Impedance	1 MΩ
RF Transmitter Output	10 mW, typical varies by region
Dimensions	110 mm x 64 mm x 21 mm (H x W x D)
Weight	75 g (2.6 oz.), without batteries
Housing	Molded ABS
Power Requirements	2 LR6 AA batteries, 1.5 V, alkaline
Battery Life	8 up to 14 hours (alkaline)

BLX4 Single Channel 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: –27 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	40 mm X 188 mm X 103 mm (H x W x D)
Weight	241 g (8.5 oz.)
Housing	Molded ABS
Power Requirements	12–15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive)

Downloads

BLX Wireless System User Guide
English