CAD25A Supercardioid Dynamic Microphone Astatic has been in the microphone developing business for over 75 years. In the late 80's Astatic presented the first studio condensers to offer outstanding efficiency at very cheap price. Over the past few years, the astatic name has become symbolic of modern products, great value and outstanding sound reliability. Astatic remains a well known name for value and quality. The CAD25A super cardioid dynamic microphones place an ultra-light diaphragm into a sound area. Recognize the pressure slope as the membrane symbiotically oscillates. Move coils of wire in the magnet area. Generate a similar electrical current in conformity with Faraday. Precisely stage arranges to create maximum attenuation at +/- 125 levels. Set up fun time filter, technical decoupling, and recessed on/off swap. CAD25A Specifications Operating Principle: Moving coil dynamic Polar Pattern: Supercardioid Frequency Response: 80Hz to 13KHz Sensitivity: -53dBV (2.3mV) @ 1 Pa Impedance: 500 ohms