Conference GM 4422 Microphones GM 4424

Data sheet no. 1.24b
Conference
Microphones
GM 4422
GM 4424
GM 4425
Gooseneck
Microphone
The conference microphones of DIS
are a series of high performance condenser microphones carefully developed to fit the DIS conference microphone units and interpreter sets.
The GM 44xx features:
Cardioid pattern
Double rubber suspended capsule
Flexible gooseneck
Illuminated ring on mic. head
XLR plug
Back-Electret condenser mic.
capsule
High close talk SPL level
Low noise level
The low noise condenser back-electret
capsule inside of the microphone head
is acoustical and mechanical isolated
from the rest of the microphone construction. The capsule is suspended
and critical damped by the use of two
special rubber bands. This DIS designed construction prevents virtually
any mechanical noise from the table to
be picked up by the microphones.
How to order
The conference microphones features
a cardioid sensitivity pattern in the
entire speech frequency spectrum to
ensure minimum risk of an acoustical
feed back arising from the sound reinforcement system.
The GM 44xx is a detachable gooseneck microphone with a professional 3
pin XLR plug. The GM 44xx features a
high bright illuminated ring around the
microphone head. The lighting level is
bright enough to be seen in camera
broadcast lighting.
The GM 44xx is available in three different lenghts.
The GM 4422 of 36 cm, GM 4424 of
50 cm and the GM 4425 of 63 cm.
Conference Microphone: Order no.:
GM 4422
18 12 05661
GM 4424
18 12 05662
GM 4425
18 12 04888
DIS, Danish Interpretation Systems A/S, Vestre Teglgade 12, DK-2450 Copenhagen SV, Denmark, Tel.: +45 33 85 40 40, Fax: +45 33 85 40 41, e-mail: info@dis.cc
Conference
Microphones
GM 4422
GM 4424
GM 4425
Specifications
General technical data:
Impedance:
Sensitivity:
2 kOhms at 1 kHz.
-68 dB + 1 dB /
µBar at 1 kHz.
(0 dB=1 V/µBar)
Directionality:
Uni-Directional.
Front to back ratio: > 25 dB / 1 kHz.
Frequency Range: 90 Hz - 15 kHz
(+ 3dB).
Signal to Noise Ratio:
> 60 dBA
Maximum input:
138 dB SPL with
3% distortion.
Power Requirements:
Supply voltage:
1.5 to 9 Volts DC.
Supplied from DM/CM 4xxx/6xxx units
or IS 9009.
Connector:
GM 44xx:
3 pin XLR male
Lenghts:
GM 4422:
GM 4424:
GM 4425:
36 cm
50 cm
63 cm
Data subject to change without notice in interest of product improvements.
DIS, Danish Interpretation Systems A/S, Vestre Teglgade 12, DK-2450 Copenhagen SV, Denmark, Tel.: +45 33 85 40 40, Fax: +45 33 85 40 41, e-mail: info@dis.cc