The CMH8C is the full-featured version, having a dual diaphragm for 3 switchable polar patterns. A built-in HPF reduces those unwanted low frequency rumbles while the -10dB pad switch effectively reduces high SPL for better sound pick up. The CMH8C is a great recording microphone with extended frequency response, low distortion, low noise and high dynamic range, and will meet the critical demands of the best professional sound engineers. These all-purpose studio-grade condenser microphones combine skillful workmanship with a 1-inch gold deposited diaphragm for the most vivid sound. There are a variety of optional accessories available to meet the requirements of almost all applications and settings.