Cardioid Condenser Headworn Microphone

ATM75

Overview

ATM75

With a pivot-mounted flexible boom that can be positioned on either the left or right side of the head, the ATM75 headworn microphone delivers professional-quality vocal pickup with hands-free operation. Includes AT8139L large windscreen, AT8139S small windscreen, and AT8439 cable clip.

Available configurations:

ATM75cH: 55" (1.4 m) permanently attached miniature cable terminated with a screw-down 4-pin connector for use with Audio-Technica cH-style body-pack wireless transmitters.

ATM75cW: 55" (1.4 m) permanently attached miniature cable terminated with a locking 4-pin connector for use with Audio-Technica cW-style body-pack wireless transmitters.

ATM75c: 7.2’ (2.2 m) permanently attached miniature cable (unterminated).

Features

Professional-quality vocal pickup with hands-free operation
Low-visibility headband provides stable, comfortable fit
Pivot-mounted flexible microphone
Cardioid polar pattern improves isolation of desired sound source

Specifications

Microphones
Element	Fixed-charge back plate, permanently polarized condenser
Polar Pattern	Cardioid
Frequency Response	100 - 13,000 Hz
Low Frequency Roll Off	80 Hz, 18 dB/octave (wired only)
Open Circuit Sensitivity	Phantom: -51 dB (2.8 mV) re 1V at 1 Pa Battery: -53 dB (2.2 mV) re 1V at 1 Pa
Maximum Input Sound Level	Phantom: 132 dB SPL, 1 kHz at 1% T.H.D. Battery: 121 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range	Phantom: 96 dB, 1 kHz at Max SPL Battery: 85 dB, 1 kHz at Max SPL (wired only)
Signal-to-Noise Ratio	58 dB, 1 kHz at 1 Pa
Phantom Power Requirements	11-52V DC, 2 mA typical
Battery Type	1.5V AA/UM3
Battery Current/Life	0.4 mA / 2000 hours typical (alkaline) (wired only)
Switches	Off, on-flat, on-roll-off (wired only)
Weight	Microphone: 60 g (2.1 oz) Power module: 139 g (4.9 oz)
Cable	4.6' (1.4 m) long (permanently attached to microphone), 0.11" (2.8 mm) diameter, 2-conductor shielded cable (termination dependent)
Dimensions	Microphone: 20.4 mm (0.80") diameter Power module (wired only): 84.0 mm (3.31") H x 63.0 mm (2.48") W x 22.0 mm (0.87") D Headset: 120.0 mm (4.72") nominal at widest point, 80.5 mm (3.17") flexible boom
Output Connector	Power module: Integral 3-pin XLRM-type (wired only)
Accessories Included	AT8531 power module (wired only); AT8439 clothing clip; AT8139L large windscreen; AT8139S small windscreen

Downloads

ATM75 Declaration of Conformity

ATM75 Frequency Response

ATM75 Polar Pattern

ATM75 Specification Sheet

ATM75c Declaration of Conformity

ATM75 Frequency Response

ATM75 Polar Pattern

ATM75 Specification Sheet

ATM75cW Polar Pattern

ATM75 Frequency Response

ATM75 Polar Pattern

ATM75 Specification Sheet