ELEMENT: Fixed-charge back plate permanently polarized condenser POLAR PATTERN: Omnidirectional FREQUENCY RESPONSE: 20-20,000 Hz LOW FREQUENCY ROLL-OFF: 80 Hz, 18 dB/Octave OPEN CIRCUIT SENSITIVITY: Phantom: –44 dB (6.3 mV) re 1V at 1 Pa ; Battery: –45 dB (5.6 mV) re 1V at 1 Pa IMPEDANCE: Phantom: 250 ohms ; Battery: 300 ohms MAXIMUM INPUT SOUND LEVEL: Phantom: 137 dB SPL, 1 kHz at 1% T.H.D. ; Battery: 123 dB SPL, 1 kHz at 1% T.H.D. DYNAMIC RANGE (typical): Phantom: 113 dB, 1 kHz at Max SPL ; Battery: 99 dB, 1 kHz at Max SPL SIGNAL-TO-NOISE RATIO: 70 dB, 1 kHz at 1 Pa
