AKG Perception 200 High-Quality Studio Diaphram Condenser Microphone Its large diaphragm delivers a full 20Hz-20kHz frequency response that will capture every nuance of any voice or instrument. It can be used in sound fields as high as 145dB, thanks to a switchable -10dB pre-attenuation pad. It comes with a full-size studio shock mount that eliminates mic stand vibration or footfalls from interfering with your recording and includes a hardshell road case to protect the mic from damage.