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Mojave Audio MA-37

Pricing & Availability

  • MSRP: $3,499


MA-37 Documentation

OmnidirectionalCardioidMojave Audio MA-37

Multi-Pattern Condenser Microphone

The MA-37 is a large-diaphragm tube condenser with a mechanically adjustable single-diaphragm capsule based on the Sony C-37A — in which a control on the back of the microphone grille adjusts the vent size on an acoustic chamber behind the capsule, providing Omni and Cardioid polar patterns.

The mic’s circuit uses a pentode vacuum tube, cited as either EF86 or EF806. The output transformer is provided by Lundahl.

The included power supply includes a 3-way high-pass filter switch; the two filter modes have -6dB points at either 50 Hz (“V1”) or 100 Hz (“V2”).

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Pickup Patterns Pads & Filters
Omnidirectional (5 mV/Pa; 30 - 18,000)
Cardioid (5 mV/Pa; 30 - 18,000)
  • Filter: HPF: M (flat) (Via Switch)
  • Filter: HPF: V1 (-6dB @ 50Hz) (Via Switch)
  • Filter: HPF: V2 (-6dB @ 100Hz) (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Diameter n/a
170 Ohms (Low) Max SPL: 134 dB
Self-noise: 18.0 dB(A)
Weight Length Max Diameter Interface(s)
n/a 152mm (5.98'') 52mm (2.05'')
  • 3-pin XLR male (1)
Power Specifications
  • Includes tube power supply

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