Audio Technica ATM75

Features

• 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
• 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 desired sound source
• Rugged design and construction for reliable performance
• Switchable 80 Hz high-pass filter minimizes pickup of undesired low-frequency sounds

Specifications

• 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
• 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
• Impedance
  • Phantom: 200 ohms
  • Battery: 270 ohms
• 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 (typical)
  • Phantom: 96 dB, 1 kHz at Max SPL
  • Battery: 85 dB, 1 kHz at Max SPL
• 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)
• Switch: Off, on-flat, on-roll-off
• Weight:
  • Microphone: 60 g (2.1 oz)
  • Power module: 139 g (4.9 oz)
• Dimensions
  • Microphone: 20.4 mm (0.80") diameter
  • Power module: 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