Specifications

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72
MICROPHONES — Recording and Broadcast (p art 2 of 2)
CM-311AHS
Differoid Noise-Cancelling Microphone
for Broadcast
This noise-cancelling microphone mounts on a Sony MDR-
V6 or MDR-7506 headphone. Its condenser capsule pro-
vides full, clear, distortion-free sound and exceptional isola-
tion from background noise. The CM-311AHS is ideal for
sports announcing and traffic helicopters. Lightweight,
rugged and comfortable, the headband and mic boom are
adjustable to any user. The microphone includes a
battery/phantom powered belt pack with a programmable
on-off switch.
Element Type: Electret Condenser
Frequency Response: 50 Hz to 17 kHz
Polar Pattern: Cardioid
Impedance: 75 ohms
Sensitivity: 4 mV/Pa
CM-312AHS
Hypercardoid Headworn Microphone
for Broadcast
The CM-312AHS hypercardioid microphone offers the same
comfort and fit found with the headworn CM-311AHS. It
mounts on a Sony MDR-V6 or MDR-7506 headphone. The
CM-312AHS is ideal for studio and remote situations where
a little less discrimination against background noise is
required. It includes a battery/phantom powered belt pack
with a programmable on-off switch.
Element Type: Electret Condenser
Frequency Response: 50 Hz to 17 kHz
Polar Pattern: Hypercardioid
Impedance: 75 ohms
Sensitivity: 3.8 mV/Pa
CM-310ASW
Differoid Noise-Cancelling Microphone
Featuring Crown’s patented Differoid technology, the
CM-310ASW provides quality sound and exceptional isola-
tion from background noise. The microphone is ideal for
sports announcing and for eliminating strong ambient back-
ground noise. Its built-in magnetic reed switch turns the mic
on and off. Frequency response is internally adjustable for
your choice of natural sound or bright, articulate sound.
Element Type: Electret Condenser
Frequency Response: 80 Hz to 15 kHz
Polar Pattern: Cardioid
Impedance: 200 ohms
Sensitivity: 1.7 mV/Pa