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Subminiature Cardioid Condenser Lavalier Microphone
broadcast & production microphones
AT898
Features
•  Maximum intelligibility and clean, accurate reproduction for  
  vocalists, lecturers, stage and television talent, and houses of  
  worship
•  Low-profile design (a mere 5 mm in diameter) is ideal for  
  applications requiring minimum visibility
•  Cardioid polar pattern reduces pickup of sounds from the sides  
  and rear, improving isolation of desired sound source
•  Offers the convenience of battery or phantom power operation
•  Rugged design and construction for reliable performance
•  Switchable 80 Hz high-pass filter minimizes pickup of undesired  
  low-frequency sounds
•  Also available in wireless models (without power module)  
  terminated for use with all Audio-Technica UniPak
®
 wireless 
  systems and many other manufacturers' wireless systems
Description
The AT898 is a subminiature clip-on/lavalier condenser microphone with a 
cardioid polar pattern. It is designed to provide accurate reproduction for 
vocalists, lecturers, stage and television talent, and houses of worship.
The microphone is intended to be worn on the clothing or hidden in props 
for excellent yet unobtrusive sound pickup. The wide-range capability 
of the microphone ensures clean, accurate reproduction with high 
intelligibility for speakers, presenters and other performers. Its small size 
makes it ideal for use in applications where minimum visibility is required.
The microphone requires 11V to 52V phantom power or a 1.5V AA battery 
for operation. A battery need not be in place for phantom power operation.
The microphone's cardioid polar pattern provides a 120° angle of 
acceptance.
The microphone includes a 3 m (9.8') permanently attached miniature 
cable. Its free end connects to the provided AT8537 power module via  
TA3F-type connector. The output of the power module is a 3-pin XLRM-
type connector. 
A recessed switch in the power module permits choice of flat response 
or low-frequency roll-off (via integral 80 Hz high-pass filter) to help control 
undesired ambient noise.
The microphone comes equipped with a power module, a cable clip, 
a clothing clip base, a viper clip base, a magnet clip base and plate 
with lanyard, three single mic holders, two double mic holders, two 
windscreens and a battery. A protective carrying case is also included. 
The microphone has a low-reflectance black finish.
Wireless Models Description 
The microphone is also available in a variety of wireless models, 
including the AT898cW. The AT898cW includes a 1.4 m (55") 
permanently attached miniature cable terminated with a locking 4-pin 
connector for use with Audio-Technica UniPak
®
 body-pack transmitters. 
Models are also available in a variety of terminations for use with many 
other manufacturers’ wireless systems. No power module or battery is 
included (or required) with the wireless models. The wireless models’ 
dimensions, polar pattern and included accessories are otherwise 
identical to those of the AT898.
The AT898cW is also available unterminated as the AT898c.
Cable Terminations
AT898cW 
Terminated with locking 4-pin  
 
connector for use with  
 
Audio-Technica
®
 UniPak 
 
body-pack transmitters 
AT898cL4 
Terminated for Sennheiser
®
 
 
wireless systems using Lemo  
 
connector
AT898cT4 
Terminated for Shure
®
 wireless 
 
systems using TA4F-type  
 
connector
AT898cT5 
Terminated for Lectrosonics
®
 
 
wireless systems using  
 
TA5F-type connector
AT898c 
Unterminated
Audio-Technica
®
 is a registered trademark of Audio-Technica. Other product and company names 
mentioned herein may be trademarks and/or service marks of their respective owners.
Operation and Maintenance
The AT898 requires 11V to 52V phantom power or a 1.5V AA battery for 
operation. A battery need not be in place for phantom power operation. 
To install the battery, unscrew the base of the power supply unit and 
insert one AA battery into the battery compartment, being certain to 
observe battery polarity as marked. Then simply screw the base shut. 
Alkaline batteries are recommended for longest life. Remove the battery 
during long-term storage.
Output is low impedance (Lo-Z) balanced. The signal appears across Pins 
2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot”— positive 
acoustic pressure produces positive voltage at Pin 2.
An integral 80 Hz high-pass filter provides easy switching from a flat 
frequency response to a low-end roll-off. The roll-off position reduces the 
microphone’s sensitivity to popping in close vocal use. It also reduces 
the pickup of low-frequency ambient noise (such as traffic, air-handling 
systems, etc.), room reverberation and mechanically coupled vibrations. 
To engage the high-pass filter, use the end tip of a paperclip or other small 
pointed instrument to slide the switch toward the “bent” line.
For use as a lavalier, attach the microphone about six inches below the 
chin. Anticipate movements that may cause the microphone to rub against 
or be covered by clothing, and position the microphone to avoid it.
The included single and double mic holders are interchangeable with the 
included bases. To change the holders, simply remove original holder and 
snap in the desired one. When using the microphone in extremely close 
situations, slip the included open-pore foam windscreen over the mic to 
reduce wind noise or popping.
CAUTION! To avoid possible injury, use caution when affixing the 
microphone viper clip to clothing. The pins are sharp and may puncture