Shure Incorporated
39/45
Total Harmonic Distortion
0.0006% at -6 dBFS, 1 kHz,
System Audio Polarity
Positive pressure on diaphragm produces positive voltage on audio+ with respect to audio-
Analog Output Latency
Standard Density Mode 2.08ms
High Density Mode 2.96ms
USB Input (used for firmware updates)
Connector Type
USB-C
USB Protocol
USB 2.0
USB Role
Peripheral (upstream-facing port)
USB Power Delivery
None
Power
DC Power Requirements
6V DC to 18V DC
Thermal Power Dissipation
maximum
4.8W(18Vin,fullbrightness,allaudiofullscaleout,and
RF channels active)
nominal 4W (12 V in, no outputs, no linked transmitters)
minimum 2.3 W (6.5V in, both channels in standby)
Mechanical Specifications
Operating Temperature Range
Note: Battery characteristics may limit this range.
-18°C (0°F) to 50°C (122°F)
Storage Temperature Range
-29°C (-20°F) to 65°C (149°F)
Dimensions
29x88x108mmHxWxD(Nobackplate)