The ECM-999 is an omni-directional microphone for free-field measurement. With a highly-reliable circuit and a 1/4"pre-polarized condenser capsule, it boasts high stability, low distortion, and low noise in performance. Its excellent flat frequency response makes it an ideal candidate for sonic analysis systems and for special recording as well.
Type: Back electret condenser Element :Pressure, FET preamplifier Polar pattern:Omni
Frequency response: 20 to 20,000 Hz
Sensitivity: -37dBV/Pa (14mV/Pa) 1Pa=94dB SPL (at 1,000 Hz Open Circuit Voltage) Rated impedance :200Ω Minimum load impedance: 3,000Ω Equivalent noise level:(A-weighted) 22dB Max. SPL (1 kΩ load) :132dB SPL (THD≦1% 1kHz) Dynamic range (1 kΩ Load) :106dB Environmental conditions: Polarity: Pin 2 output positive voltage (related to pin 3) when diaphragm receives positive pressure. (Diaphragm moving inward) Connector: 3 pin male XLR type Finish: solemn black finish Weight: 150g (5.30 oz.) Current consumption: 0.5mA Noise ratio-to-Signal :70 dB Power supply :9~52 V Phantom Dimensions :Φ21.0x193.0mm (0.83x7,56n.) Frequency Response :20~20000Hz