Cascade Microphones M39 Stereo Pair Small CondensorThe Cascade M39 is a cardioid condenser that has a 22mm diameter diaphragm. The Cascade M39 has a silky, open audio quality with a wide dynamic range essential for accurate, instrument recording and is ideal for use as drum over heads, hi hat, snare, or acoustic instruments such as guitar and piano. The M39 features a high SPL rating of 137 dB and is capable of capturing even the loudest of audio sources. The M39 is a compact microphone that is great