User Manual
Cardioid Condenser Headword Microphones for Wireless System ATM75cW / ATM75cH
■Features
■Notes on use
■Connection procedure
■Specifications
Fixed-charge back plate, permanently polarized condenser
Cardioid
100 - 13,000 Hz
-51 dB (2.8 mV) re 1V at 1 Pa
200 ohms
132 dB SPL, 1 kHz at 1% T.H.D.
96 dB, 1 kHz at Max SPL
2.5-10V
Headset: 120.0 mm nominal at widest point, 80.5 mm boom
Microphone: 20.4 mm diameter
•1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Cable Terminations
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-NOV--2020 Form No.ATGC-L0383-20
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.
ATM75cW and ATM75cH 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 adjustable 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.
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.
For product improvement, the product is sublect to modification without notice.
• Ideal for drummers, keyboard players, guitarists or anyone requiring hands-free operation
• Low-visibilty headband provides stable, comfortable fit
• Pivot-mounted flexible mic boom descends from left or right side
• Cardioid polar pattern improving isolation of desired sound source
• Rugged design and construction for reliable performance
• ATM75cW equipped with cW-style locking and equipped with ATM75cH cH-style
screw-down 4-pin termination for Audio-Technica wireless systems
■Safety precaution
■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, humid or
dusty place.
cW-type (ATM73cW) / cH-type (ATM73cH)
Element
Polar pattern
Frequency response
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Voltage range
Dimensions
Output connector
Cable 1.4 m long (permanently attached to microphone),
60 gWeight
Included accessories AT8139L large windscreen; AT8139S small windscreen;
AT8439 cable clip.
2.8 mm diameter, 2-conductor shielded cable
(termination dependent)
ATM75cW – Terminated with locking 4-pin connector for use with A-T UniPak®body-pack transmitters
ATM75cH – Terminated with locking 4-pin connector for use with A-T cH body-pack transmitters
1
2
3
4
1
4
32
Pin 1 Pin 2 Pin 3 Pin 4
Function Ground / Shield Instrument Mic Audio Blas + In
Wire Colour Copper Wire Jumper to Pin 1 Yellow Red
Pin 1 Pin 2 Pin 3 Pin 4
Function Ground / Shield Instrument Mic Audio Blas + In
Wire Colour Copper Wire Jumper to Pin 1 Yellow Red
58 dB, 1 kHz at 1 PaSignal-to-noise ratio
cH-style
cW-style
AT8139L AT8139S AT8439
■Polarpattern ■Frequency response
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
LEGEND
0°, 50cm
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz Roll-off
60°
90°
Response in dB
Frequency in Hertz
10 dB
1k 10k 100k10010
10
0
-10
-20
-30
20
