Mojave MA-37 Large-Diaphragm Tube Condenser Microphone

Mojave's homage to the Sony C-37a, this smooth, vintage-voiced tube condenser mic boasts an adjustable hi-pass filter and switchable cardioid/omni patterns.

Retro. Futuristic. Mojave is proud to present Technical Grammy Award Winner David Royer's modern take on a legend -- the Sony C-37a. Known for its high headroom and ability to tame brittle high end, it became a workhorse in the '60s, especially during the golden age of Hollywood recording -- the "Wrecking Crew" era. Studios such as Capitol Records and Sunset Sound acquired multiples, which are still in use today.


Check out the MA-37's origin story in this video from Mojave Audio:


Hear the MA-37 in action on vocals and acoustic guitar in Mojave's video:


From Leonard Bernstein, the Columbia Symphony Orchestra, and Voice-over legend Mel Blanc (the voice of over 400 characters, from Bugs Bunny to Barney Rubble) through producer Daniel Lanois (U2, Peter Gabriel) and current artists, such as Bon Iver, the C-37a remains a 'secret weapon' microphone for those in the know. David Royer, who has been a fan of the C-37a for thirty years, has long desired to offer his updated version to the Mojave family -- and that time has come. He states, "Sony took a completely different approach than Neumann and AKG, which made the C-37a a completely different animal".

The Mojave MA-37 features an EF86 tube, Lundahl transformer, and a special capsule built here in California. It features a unique mechanical approach, developed by RCA in the 1930's and adapted by Sony, to achieving a choice between cardioid and omnidirectional polar pattens -- an adjustable tuned acoustic chamber.

In keeping read more with David Royer's "simple yet elegant" design philosophy, the circuit is based around a single-stage tube amplifier. The hi-pass filter controls are located on the power supply, offering three options: flat (M), 100Hz (V1), and 200Hz (V2).

The Mojave MA-37 -- it sounds great -- in a different way!


Check out the story behind the MA-37's development in this video from Mojave Audio:
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-Frequency response: 30 to 18,000 Hz. +- 3dB. ("M" setting)
-Bass cut: M flat
- V1 -6dB at 40 Hz.
- V2 -6dB at 100 Hz.
-Sensitivity: -46 dBv referred to 1 volt per pa.
-Distortion: Not to exceed .5 percent at 134 dB.
-Noise: Better than 18 dB.
-Polar pattern: Choice of cardioid or omni; via mechanical shutter.
-Impedance: 170 ohms, floating. Recommended load 1500 ohms or higher.
-Power required: 115 or 230 VAC, 50 or 60 hertz; 5 watts.
- 6 volts DC at 200 mA.
- 140 volts DC at 1.5 mA. from dedicated power supply.
-Dimensions and Weight:
-Microphone: 6"x2" 1lb.
-Power Supply: 9.5"x7.25"x4.5" 5.5lb
-Case: 18.5'x13.5"x7" 16lbs.
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 14.5 lbs
Shipping Dimensions: 19 x 15 x 8 in
Manufacturer Part Number (MPN): MA-37

For support or warranty questions, please contact the manufacturer:
Web: https://mojaveaudio.com/contact-us/

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