Mackie MT-3100 User Manual

SOUND PALETTE® Series

 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/Ampliers.

 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 at surface, where the direct sound
and the reected 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 lter 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.

MT-3100

MIC

Ambient Noise-Sensing Microphone

MT-3100 MT-3100W

MT-3100

Features

 Used for the ambient noise sensing feature on the

SP1200 and SP2400

 Low prole for discreet placement
 Available in black or white
 Electret condenser capsule operates on phantom power
 Red power indicator

 Zoned Music Distribution

Automated Noise-Compensating



Gain Systems

Multizone Paging/Music Systems



Music/Speech Reinforcement Systems



O F 2 P A G E S

1

A P PL IC AT I O N S

o F 6 P A GE S

MT-3100

+10

-16

-14

-12

-10

-8

-6

-4

-2

-0

+2

+4

+6

+8

20 20k50 100 200 500 1k 2k 5k 10k

Hz

MT-3100 Frequency Response

dBr

MIC

MT-3100

Ambient Noise-Sensing Microphone

Specications

Electrical

Type: Electret Condenser
Polar Characteristic: Omnidirectional
Output Impedance: 600 ohms
Sensitivity (@ 1kHz): 20mV/Pa
Frequency Response: 50Hz-20kHz
Signal-to-Noise Ratio: 70 dB @ 94 dB SPL
Maximum Sound Pressure Level: 130 dB SPL
Power Supply: 11-52 VDC phantom supply

according to DIN 45596 or IEC 268-15

Physical

Connector: XLR-M balanced
Dimensions: 4.7" diameter x 1.1" high

(120mm x 27mm)
Net Weight: 4.6 oz. (130g)
Accessories: 2 strips of double-sided tape

for microphone attachment

www.mackieindustrial.com

16220 Wood-Red Rd. NE, Woodinville, WA 98072 USA

888.337.7404, fax [phone], [e-mail]

UK +44.1268.571.212, fax [phone], [e-mail]
ITALY +39.0522.354.111, fax [phone], [e-mail]
FRANCE +33.3.8546.9160, fax [phone], [e-mail]
GERMANY +49.2572.96042.0, fax [phone], [e-mail]

Architects’ and Engineers’ Specications

The microphone shall be a xed-charge condenser type
with an omnidirectional polar pattern and a frequency
response of 50Hz to 20,000Hz. It shall operate from an exter­nal phantom power source, ranging from 11 VDC to 52 VDC,
and it shall have a red indicating LED on the top. Nominal
open-circuit output voltage shall be 20mV at 1kHz, 1 Pascal.

The microphone shall have a nominal output impedance
of 600 ohms, and the output shall be balanced. It shall accept
up to 130 dB SPL while producing no more than 1% THD.

The microphone shall have a diameter of 4.7" (120mm),
a height of 1.1" (27mm), and a weight of 4.6 oz. (130g).
It shall include 16.4 feet (5m) of connection cable with a
professional XLRM-type 3-pin terminating connector.

The microphone shall be a model MT-3100 manufactured
by Mackie Industrial.

Electronic les for this product available at:
www.mackieindustrial.com

This Specication Sheet MT3100.PDF

Mackie Designs continually engages in research related to product improvement. New material, produc­tion methods, and design renements are introduced into existing products without notice as a routine
expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some
respect from its published description, but will always equal or exceed the original design specications
unless otherwise stated. ©2002 Mackie Designs Inc. All rights Reserved. and are
registered trademarks of Mackie Designs Inc. Mackie Industrial is a trademark of Mackie Designs Inc.

Part No. 0000760 Rev. A 1/02

O F 6 P A G E S

O F 2 P A G E S

o F 6 P A GE S

6

2

o F 6 P A GE S

SPEAKER

PA180SW