Mojave Audio MA-37
Large-diaphragm tube condenser microphone (single-diaphragm, switchable pattern)
Microphone$4,999Manufacturer list price
Specifications
- Type
- Microphone
- Description
- Large-diaphragm tube condenser microphone (single-diaphragm, switchable pattern)
- Topology
- tube condenser
- Signal path
- Analog
- Channels
- 1
- Channel format
- mono, balanced analog
- Form factor
- studio (side-address)
- Connection
- XLR (analog balanced, via dedicated PSU)
- Power (W)
- 5
- Drivers
- Single-diaphragm, handmade reproduction C-37A-style capsule; EF86 vacuum tube
- Frequency response
- 30 Hz - 18 kHz +/-3 dB (M setting)
- Max SPL
- >135 dB SPL
- Sensitivity
- -46 dBV/Pa (re. 1V/Pa)
- Polar pattern
- multi-pattern (switchable cardioid/omni via mechanical shutter)
- Impedance (Ω)
- 170 (floating); recommended load >=1500 ohms
Details
Controls: Mechanical rear shutter for cardioid/omni pattern selection; 3-position bass-cut switch (M = flat, V1 = -6 dB @ 50 Hz, V2 = -6 dB @ 100 Hz)
I/O: Multi-pin cable from mic to dedicated tube power supply; PSU provides balanced XLR-3M output
Notable use: NAMM TEC Award winner; described by Tape Op as having 'a dark and smooth timbre'
Notes: FLAG: dedicated tube PSU (115/230VAC 50/60Hz, ~5W; 6VDC/200mA heater, 140VDC/1.5mA plate), NOT standard 48V phantom power. Self-noise <18 dB, distortion <=0.5% at 134 dB SPL. Product page states capsule is 'handmade in-house' in California; full-unit country of manufacture not explicitly stated, so left blank per policy. Mic 6in x 2in, 1 lb; PSU 9.5x7.25x4.5in, 5.5 lb; case 18.5x13.5x7in, 16 lb. price_usd basis: Sweetwater street price as of Jul 2026 (list price shown as $5,500), not a manufacturer-published MSRP.