Mackie MT-3100 - Manual
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SOUND PALETTE
®
Series
Ambient Noise-Sensing Microphone
MT-3100
MIC
The Mackie Industrial MT-3100 is an omnidirection-
al boundary condenser microphone designed for the
ambient mic application on the SP1200 and SP2400
Program Controller/Amplifiers.
When connected to the Ambient Mic connector on
the SP1200 or SP2400, the microphone monitors the
ambient noise in the room or zone, and the gain of the
Paging Mic is automatically adjusted to compensate for
room noise. This allows public address pages to be a
little louder than the noise in the room so they can
always be heard.
When the SP-DSP1 card is installed in the SP1200 or
SP2400, the signal from the ambient mic is also used
to enable an automated controllable balance between
changing ambient noise levels and the program level.
The boundary microphone is specially designed to
be placed on a flat surface, where the direct sound
and the reflected sound, off of that surface, are added
together in-phase at the microphone's capsule.
The plastic microphone enclosure has a steel pro-
tective mesh, and is equipped with an indicator for
power on as well as a connection cable with a 3-pin
male XLR connector.
A special elastic suspension isolates the micro-
phone's capsule, and an electronic filter eliminates
subsonic frequencies, allowing the MT-3100 to reject
vibrations transmitted by the support surface.
Operates on a phantom power supply ranging from
12 VDC to 48 VDC.
Features
Used for the ambient noise sensing feature on the
SP1200 and SP2400
Low profile for discreet placement
Available in black or white
Electret condenser capsule operates on phantom power
Red power indicator
o F 6 P A G E S
1
O F 2 P A G E S
MT
-3100
AP
PL
IC
AT
IO
N
S
Zoned Music Distribution
Automated Noise-Compensating
Gain Systems
Multizone Paging/Music Systems
Music/Speech Reinforcement Systems
MT-3100
MT-3100W
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