BLX14R/SM31 Wireless Half-Rack Headset System

BLX14R/SM31 Wireless Half-Rack Headset System
	BLX14R/SM31 Wireless Half-Rack Headset System BLX Wireless Half-Rack Headset System
Included: BLX4R single channel half-rack wireless receiver with rack mount kit; BLX1 bodypack transmitter; SM31FH Headset Condenser Microphone; PS23 power supply.
	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 designed to fit comfortably in hand, with adjustable gain control. For use with BLX Wireless systems.
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

	BLX4R Single Channel Half-Rack Receiver The BLX4R is a rugged, metal rack-mountable receiver with simple set-up and intuitive controls. One-touch QuickScan frequency selection quickly locates the best frequency, while removable antennas allow for quick antenna distribution. Rack mount kit included.
The BLX4R is a rugged, metal rack-mountable receiver with simple set-up and intuitive controls. One-touch QuickScan frequency selection quickly locates the best frequency, while removable antennas allow for quick antenna distribution. Rack mount kit included.
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 Adjustable audio output level Removable antennas for quick antenna setup LCD Display with detailed RF and audio metering Rack mount kit included 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)

BLX4R Single Channel Half-Rack Receiver
Output Impedance	XLR connector: 200 Ω 6.35 mm (1/4") connector: 50Ω
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	50 mm X 198 mm X 163 mm H x W x D
Weight without antennas	998 g (2.2 lb.)
Housing	Molded ABS, steel
Power Requirements	12–15 V DC @ 260 mA, supplied by external power supply (tip positive)

Downloads

BLX Wireless Systems User Guide
English