Audio-Technica ATM73a Cardioid Condenser Headworn Microphone

Overview

The Audio-Technica ATM73a Cardioid Condenser Headworn Microphone is the ideal solution for performers who need professional - quality vocal pickup with hands - free operation. Perfect for drummers, keyboard players, guitarists, and more, this microphone features a comfortable, unobtrusive headband design with a side - of - mouth pickup. The belt - mounted power module operates on either battery or phantom power, ensuring versatility and convenience. Its cardioid polar pattern reduces the pickup of sounds from the sides and rear, providing excellent isolation of the desired sound source. Designed for rugged reliability, the ATM73a also includes a switchable 80 Hz high - pass filter to minimize unwanted low - frequency sounds. Available in both wired and wireless versions, this microphone offers flexibility to suit various performance needs.

Features

• Hands-Free Operation: Ideal for drummers, keyboard players, guitarists, or anyone requiring hands-free operation.
• Comfortable Headband Design: Unobtrusive headband with side-of-mouth pickup for maximum comfort.
• Versatile Power Options: Belt-mounted power module operates on battery or phantom power.
• Cardioid Polar Pattern: Reduces pickup of sounds from the sides and rear, improving isolation of the desired sound source.
• Rugged Construction: Designed for reliable performance in demanding environments.
• Switchable High-Pass Filter: 80 Hz high-pass filter minimizes the pickup of unwanted low-frequency sounds.
• Multiple Versions Available: Also available in ATM73cH and ATM73cW for wireless systems, and ATM73ac with unterminated cable.

Specifications

• Element: Fixed-charge back plate, permanently polarized condenser
• Polar Pattern: Cardioid
• Frequency Response: 40–15,000 Hz
• Low Frequency Roll-Off: 80 Hz, 18 dB/octave (power module)
• Open Circuit Sensitivity: Phantom: –55 dB (1.7 mV) re 1V at 1 Pa, Battery: –56 dB (1.5 mV) re 1V at 1 Pa
• Impedance: Phantom: 200 ohms, Battery: 270 ohms
• Maximum Input Sound Level: Phantom: 146 dB SPL, 1 kHz at 1% T.H.D., Battery: 132 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range: Phantom: 111 dB, 1 kHz at Max SPL, Battery: 97 dB, 1 kHz at Max SPL
• Signal-to-Noise Ratio: 59 dB, 1 kHz at 1 Pa
• Phantom Power Requirements: 11-52V DC, 2 mA typical
• Battery Power Requirements: 1.5-9V DC (0.5 mA current consumption typical at 1.5V DC)
• Battery Type: 1.5V AA/UM3
• Battery Life: 0.4 mA / 1200 hours typical (alkaline)
• Switch: Off, on-flat, on-roll-off (power module)
• Weight: Microphone: 31 g (1.1 oz), Power module: 139 g (4.9 oz)
• Dimensions: Microphone: 10.0 mm (0.39") diameter, Power module: 84.0 mm (3.31") H x 63.0 mm (2.48") W x 22.0 mm (0.87") D, Headset: 165.0 mm (6.49") nominal at widest point, 67.0 mm (2.64") flexible boom
• Output Connector: Integral 3-pin XLRM-type
• Cable: 1.4 m (4.6') long (wired), 1.4 m (55") long (wireless)
• Accessories Furnished: AT8531 power module, AT8128 windscreen, AT8125 windscreen, battery