Sony 37P (circa 1971)
The Sony 37P is a professional condenser studio microphone. In the period record it usually appears with its full model number: the C-37P. The Special Application Products Division of Superscope announced it in April 1971. Superscope was Sony's U.S. distributor at the time. It was an improved version of the earlier C-37A, and it sat within Sony's established line of condenser studio microphones.
The big change was a new low-noise FET amplifier. Recording Engineer (April 1971, p.31) reported that it cut the equivalent noise floor from the C-37A's 34 dB SPL to 24 dB SPL. It also raised the overload point by 20 dB, to 154 dB SPL. That gave the C-37P a 130 dB dynamic range. Like the C-37A, it was a variable-directivity design.
Beyond that announcement, documentation on the 37P is thin. The surviving review record gives no frequency response figure, output level, production dates, or original price. If you own a C-37P or have its manual, the Archive would welcome the missing details.
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