Shure SM31FH User Manual

SM31FH
www.shure.com ©2015 Shure Incorporated
Type Electret Condenser
Frequency Response 45 to 20,000 Hz
Polar Pattern Unidirectional (Cardioid)
Output Impedance
@ 1 kHz
600 Ω
Audio Output Level -50 dBV/Pa
Signal-To-Noise Ratio
[1]
@ 1 kHz
66 dB
Maximum SPL
[1]
1000 Ω load, @ 3% THD
145.0 dB
Dynamic Range
[1]
@ 1 kHz, 1000 Ω load
117.0 dB
Equivalent Output Noise
[1]
Typical, A-Weighted
28 dB
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
Net Weight 60 g (2.11 oz.)
[1]
Measurements taken using RK100PK preamp set @ 0 dB using 8k bias resistor.
* All specifications measured with a 48 VDC phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.
Specifications
Overview
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 and GLX-D 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 design 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 variety of Shure wireless systems, renowned for their ease of use and reliable performance
• Included windscreen tames plosive, breath and wind noise for clean and intelligble sound
• Tailored frequency response refined for crisp and clear vocal reproduction
• Legendary Shure precision engineering for durability and performance
Available Models
SM31FH-TQG Fitness Headset Cardioid Condenser Microphone with Windscreen
BLX1288/SM31 BLX Dual-Channel Wireless Combo System
BLX14/SM31 BLX Wireless Headset System
BLX188/SM31 BLX Dual-Channel Wireless Headset System
BLX14R/SM31 BLX Rack-Mounted Wireless Headset System
GLXD14/SM31 GLX-D Digital Wireless Headset System
Optional Accessories
RK379 Replacement kit with clip + 2 foam windscreens
Frequency Response
20
15
10
5
0
-30
-25
-20
-15
-10
-5
dB
Hz
20 100 1k 10k 20k
0.6 m (2 ft.) from sound source 1 cm (0.4 in) from sound source
Polar Patterns
250 Hz
125 Hz
500 Hz
5,000 Hz
10,000 Hz
1,000 Hz
SM31FH Fitness Headset Condenser Microphone
Product Specifications

Shure SM31FH Specifications

General

Type	Collar microphone
Microphone frequency	45 - 20000 Hz
Microphone input impedance	600 Ω
Device interface	-
Connectivity technology	Wired
Signal-to-Noise Ratio (SNR)	66 dB
Cable length	1.1 m
Product color	Black, Orange
Number of products included	1 pc(s)

Weight and Dimensions

Microphone weight	60 g