Shure Incorporated Microflex Series Low Profile Boundary Microphone (Black, Cardioid) MX395B/C

The Microflex® Low Profile Boundary microphone is an ideal table microphone when minimal presence is of high priority. Perfect for meeting rooms, these microphones deliver exceptional sound pickup while barely being noticed.
Output Impedance
EIA Rated at 150 Ohms (170 Ohms actual)
Output Configuration
Active balanced
Sensitivity (at 1 kHz , open circuit voltage)
Cardioid: -35 dBV/Pa (18 mV)
Omnidirectional: -28 dBV/Pa (42 mV)
Bidirectional: -37 dBV/Pa (14 mV)
1 Pascal=94 dB SPL
Maximum SPL (1 kHz at 1% THD, 1 kilohms load)
Cardioid: 121 dB
Omnidirectional: 114 dB
Bidirectional: 123 dB
Equivalent output Noise (A-weighted)
Cardioid: 28 dB SPL
Omnidirectional: 21 dB SPL
Bidirectional: 29 dB SPL
Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz)
Cardioid: 66 dB
Omnidirectional: 73 dB
Bidirectional: 65 dB
Dynamic Range (1 kilohm load at 1 kHz)
Cardioid: 93 dB
Omnidirectional: 93 dB
Bidirectional: 94 dB
Common Mode Rejection (10 Hz - 100 kHz)
45 dB minimum
Preamplifier output Clipping level (1% THD)
-8 dBV (0.4 V)
Polarity
3-Pin XLR: Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector.
5-Pin XLR: Positive sound pressure on diaphragm produces positive voltage on pin 4 relative to pin 2 of output XLR connector.
Weight
Net: 0.136 kg (0.30 lbs.)
Packaged: 0.374 kg (0.825 lbs.)
Logic Connections
LED IN: Active low ( 1.0V), TTL compatible. Absolute maximum voltage: -0.7V to 50V.
Environmental Conditions
Operating Temperature: -18 to 57 deg. C (0 to 135 deg. F)
Storage Temperature: -29 to 74 deg. C (-20 to 165 deg. F)
Relative Humidity: 0 to 95%
Power Requirements
MX395: 11 - 52 Vdc phantom, 2.0 mA
MX395-LED: 48 - 52 Vdc phantom, 8.0 mA