User Manual
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.
■ Features
• Composed of ATM73a microphone with cW-style connector
• Ideal for drummers, keyboard players or anyone requiring hands-free operation
• Comfortable, unobtrusive headband design with side-of-mouth pickup
• Cardioid polar pattern improving isolation of desired sound source
• Rugged design and construction for reliable performance
• ATM73cW equipped with cW-style locking and equipped with ATM73cH cH-style
screw-down 4-pin termination for Audio-Technica wireless systems
■ Notes on use
ATM73cW and ATM73cH wireless versions do not contain power module and includes
clothing clip and metal-frame pop filter only. 1.4 m cable terminated with locking 4-pin
connector. The connector is also compatible with Audio-Technica cW and cH type
body-pack transmitters.
For maximum stability and minimum visibility, the headband should be worn around the
back of the head, with each cushioned support pad resting on the temple in front of the ear.
The cable should remain clipped to the headband, with some slack at the boom connection.
The headset is designed so the microphone descends from the left support pad.
Avoid leaving the microphone in the open sun or in areas where temperatures exceed 43°C
for extended periods. Extremely high humidity should also be avoided.
■ Safety precaution
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.
■Cautions for 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, humid or
dusty place.
cH-style
cW-style
Cardioid Condenser Headword Microphones for Wireless System ATM73cW / ATM73cH
■ Specifications
Polar pattern
Frequency response
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio
Voltage range
Dimensions
Output connector
Included accessories
• 1 Pascal = 10 dynes/cm
= 10 microbars = 94 dB SPL
2
* Typical, A-weighted, using Audio Precision System One.
For product improvement, the product is sublect to modification without notice.
■Polar pattern
0°
330°
30°
300°
60°
270°
90°
240°
120°
210°
150°
180°
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
■ Connection procedure
■Cable Terminations
ATM73cW – Terminated with locking 4-pin connector for use with A-T UniPak
4
1
3
2
Wire Colour Copper Wire
ATM73cH – Terminated with locking 4-pin connector for use with A-T cH body-pack transmitters
4
1
Wire Colour Copper Wire
3
2
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
Element
Fixed-charge back plate, permanently polarized condenser
Cardioid
40 - 15,000 Hz
-55 dB (1.7 mV) re 1V at 1 Pa
200 ohms
146 dB SPL, 1 kHz at 1% T.H.D.
111 dB, 1 kHz at Max SPL
59 dB, 1 kHz at 1 Pa
2.5-10V
Weight
31 g
Microphone: 10.0 mm diameter
Headset: 165.0 mm nominal at widest point, 67.0 mm boom
cW-type (ATM73cW) / cH-type (ATM73cH)
Cable
1.4 m long (permanently attached to microphone),
2.6 mm diameter, 2-conductor shielded cable
(termination dependent)
AT8125 windscreen; AT8128 windscreen;
AT8125
AT8128
■Frequency response
20
10
0
-10
-20
-30
10
100
1k
Frequency in Hertz
LEGEND
0°, 50cm
Roll-off
®
body-pack transmitters
Pin 1
Pin 2
Pin 3
Pin 4
Function Ground / Shield Instrument
Mic Audio
Blas + In
Jumper to Pin 1 Yellow
Red
Pin 1
Pin 2
Pin 3
Pin 4
Function Ground / Shield Instrument
Mic Audio
Blas + In
Jumper to Pin 1 Yellow
Red
16-NOV--2020
10 dB
10k
100k
Form No.ATGC-L0382-20
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