The MA-37 is David Royer's modern version of the classic Sony C-37a microphone, known for its large headroom and the ability to tame the sharpest high frequencies. The C-37a became an incredibly popular microphone in the golden Hollywood era in the 60s and remains an often well-chosen alternative to Neumann, AKG and similar in the same class.
CAPSULE TYPE: Single diaphragm
POLAR PATTERN: Choice of cardioid or omni; via mechanical shutter
FREQUENCY RESPONSE: 30 to 18,000 Hz. ± 3 dB (“M” setting)
SENSITIVITY: -46 dBv referred to 1 volt per pa.
MAX SPL: <134 dBSPL
DISTORTION: Not to exceed .5 percent at 134 dB
SELF NOISE: Better than 18 dB