User Manual
Contact Microphone AT880b
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Features
■
Notes on use
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Specifications
Piezo Electric
Surface contact
20 - 5,000 Hz
72mV/G (-22.9dBV/G) at 500Hz
37g (Microphone)
25m long white (permanently attached to microphone)
•
1 Pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL
*
Typical, A-weighted, using Audio Precision System One.
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Polar pattern
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Frequency response
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
16-MAR--2022 Form No.ATGC-L0409-22
Scale is 5 decibels per division
LEGEND
Thank you for purchasing this product. Before using the product, read through the user manual to
ensure that you will use the product correctly. Please keep this manual for future reference.
The AT880b is a waterproof Contact Microphone. It is suitable for sound pickup underwater or
collecting the sound of objects vibrating from a flat surface.
There is a high-sensitivity piezoelectric sensor inside, which is installed in a sturdy aluminum case
with good corrosion resistance and waterproof performance. The aluminum case of the AT880b is
thin in design, with a thickness of 10mm. It can be placed in small and narrow spaces for operation
and can be fixed and installed with screws.
The microphone is equipped with a 25m long cable, which is convenient for long-distance
installation. AT880b has a built-in preamplifier, which can deliver clear signals over long distances,
even when using equipment with low-impedance inputs.
The AT880b microphone requires 48V DC phantom power for operation.
Exposure of the microphone too high temperatures may result in a gradual and permanent reduction
in output level. Avoid leaving the microphone in the open sun or in areas where temperatures
exceed 43°C for extended periods.
For product improvement, the product is sublect to
modification without notice.
• Surface contact piezo microphone
• Can be used for multi-purpose such as underwater and flat vibration. The piezoelectric sensing
device is housed in a waterproof metal case
• Phantom powered with internal preamp for clear sound even with low impedance inputs and
long cable connections
• Permanent 25m cable and built-in dedicated power module for microphone
• Aluminum cutting case with corrosion and water resistance, the housing provides sensitive
vibration conductivity
• Low profile design, can be installed in small and confined spaces for concealment
• Equipped with mounting holes can be fixed with screws for security
Element
Polar pattern
Frequency response
Open circuit sensitivity
Weight
Cable
3-pin XLRM type (cable)
Output connector
10mm x 53.4mm x 33mm (H x W x D)
Dimensions
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Connection procedure
This product requires 48 V
DC phantom power.
Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
Connect the output terminals of AT880b to a device that has a microphone input (balanced input)
compatible with a phantom power supply. The output connector is an XLRM-type with polarity as
shown in the figure below.
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Safety precaution
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Cautions for the product
Although this product was designed to be used safely, failing to use it correctly may result in an
accident. To ensure safety, observe all warnings and cautions while using the product.
• Do not subject the product to strong impact to avoid malfunction.
• Do not disassemble, modify or attempt to repair the product.
• Do not handle the product with wet hands to avoid electric shock or injury.
• Do not store the product under direct sunlight, near heating devices or in a hot place.
LEGEND
0°, 50cm
Response in dB
Frequency in Hertz
108 ohms
48V DC, 3.5 mA
Impedance
Phantom Power Requirements
Pouch
Included accessories
Dimensions
33
53.4
10
26
(Unit : mm)
2-Ø4.2
Ø19
Ø3.2
67
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
60°
90°
10 dB
200
1k
5k
100
20
500
2k
50
10
0
-10
-20
-30
20
200Hz
1kHz
