Sony ECM-674 Electret Condenser Microphone

• Capsule Type - Electret condenser
• Directivity - Uni-directional (super-cardioid)
• Frequency Response - 40 Hz to 20 kHz
• Sensitivity (at 1 kHz) - -36 dB(*1) ±3 dB
• Output impedance (at 1 kHz) - 220 Ω ±20%
• Dynamic range - Phantom: 107 dB or more, Battery: 98 dB or more
• Signal-to-noise ratio - 77 dB or more (IEC179 A-weighted, 1 kHz, 1Pa.)
• Inherent noise - 17 dB SPL(*2) or less
• Wind noise - 50 dB SPL(*2) or less (with windscreen)
• Induction noise from external magnetic field - 0 dB SPL(*2) or less
• Maximum input sound pressure level - Phantom: 124 dB SPL (*2), Battery: 115 dB SPL (*2)
• Power requirements - External: DC 40 to 52 V, Battery: 1.5 V
• Dimensions - 20 dia. x 268 mm (13/16 dia. x 10 5/8 inches)
• Mass - Approx. 185 g (6.5 oz) without battery Approx. 208 g (7.3 oz) with battery
• Note: - (*1) 0 dB=1 V/Pa., at 1 kHz (*2) 0 dB=20µ Pa.