Audio Technica ATM73a

Ideal for drummers, keyboard players or anyone requiring hands-free operation, the ATM73a features a comfortable, unobtrusive headband design with side-of-mouth pickup. Its belt-mounted power module operates on battery or phantom power.

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

• 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 Requiremens: 11-52V DC, 2 mA typical

• Battery Type: 1.5V AA/UM3

• Battery Current Life: 0.4 mA / 1200 hours typical (alkaline)

• Switch: Off, on-flat, on-roll-off

• Cable: 4.6' (1.4 m) long (permanently attached to microphone), 0.10" (2.6 mm) diameter, 2-conductor shielded cable with TA3F-type connector