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POLAR PATTERN SELECTOR

 

 

The MA-37 features a unique mechanical approach, developed by RCA in the 1930s and adapted 
by Sony, to achieving a choice between cardioid and omnidirectional polar patterns – an adjustable 
tuned acoustic chamber. To change the pattern selection from cardioid (C) to omni (O), insert a 
small flat-head screwdriver into the slot and rotate clockwise approximately 90 degrees. It is 
perfectly acceptable to stop anywhere between C and O in order to achieve a hyper-cardioid polar 
pattern. 

BASS CUT SWITCH

 

The bass cut switch, also known as a hi-pass filter, is 

located on the power supply, offering three 

options: 

at (M), 100Hz (V1) and 200Hz (V2). As the MA-37 has an extended low frequency 

response, the bass cut is useful in cleaning up the bottom end. V1 is useful for instruments such 
as acoustic guitar. V2 is useful for instruments such as a tambourine or shaker. Either V1 or V2 
can be useful for recording vocals, depending on the voice and desired result.

 

Summary of Contents for MA-37

Page 1: ...ncluding Recording Tips FAQ s Warranty Registration Customer Service CONTENTS CONTENTS 1 INTRODUCTION 2 UNPACKING AND INSPECTION 2 GENERAL INFORMATION 3 SAFETY INSTRUCTIONS 3 OPERATION 4 CARE OF YOUR MICROPHONE 5 TECHNICAL SPECIFICATIONS 6 POLAR RESPONSE 7 POLAR PATTERN SELECTOR 8 BASS CUT SWITCH 8 WARRANTY 9 ...

Page 2: ...usic provided that the microphone is used sensibly For optimum performance from your microphone please read this manual thoroughly and familiarize yourself with the proper use of the MA 37 UNPACKINGAND INSPECTION Carefully unpack your MA 37 and verify that all of the accessories included with the microphone are accounted for Do not discard any packing materials If anything is missing or damaged co...

Page 3: ...the voltages of the country to which they are exported This information is duly noted on the outside of the shipping box as well as on voltage selector of the power supply The MA 37 uses a line fuse for protection Never replace this fuse with one of ahigher current rating Use only that type which was supplied with the unit The power supplycord that is supplied with your MA 37 is a standard busines...

Page 4: ... pre wired for standard AC voltage in the country where the microphone is sold If there is a need to change AC voltage travel sale to another country etc an external switch allows the power supply to be configured for 100 115 or 230 volts at either 50or 60 Hz Make sure the fuse is the proper value 500 mA for 100 120 Volts AC and 250 mA for230 VoltsAC Hot plugging any vacuum tube microphone can dam...

Page 5: ...one cable and power supply in a safe place such as its carrying case or amicrophone locker when not in use 4 When plugging in the 5 pin cable between the microphone and power supply orient theplug correctly and plug the connectors in gently Rough handling or hurry up plug ins can result in bent or broken pins 5 Never connect the power supply to anAC power outlet that has different voltage than wha...

Page 6: ... setting SENSITIVITY 46 dBv referred to 1 volt per pa MAXIMUM SPL DISTORTION Not to exceed 5 percent at 134 dB SELF NOISE Better than 18 dB BASS CUT M fl at V1 6dB at 50 Hz V2 6dB at 100 Hz IMPEDANCE 170 ohms floating Recommended load 1500 ohms or higher DIMENSIONSAND WEIGHT Microphone 6 x2 1lb Power Supply 9 5 x7 25 x4 5 5 5lb Case 18 5 x13 5 x7 16lbs POWER REQUIREMENTS 115 or 230 VAC 50 or 60 he...

Page 7: ...POLAR RESPONSE Type Multi pattern POLAR PATTERN FREQUENCY RESPONSE ...

Page 8: ...0 degrees It is perfectly acceptable to stop anywhere between C and O in order to achieve a hyper cardioid polar pattern BASS CUT SWITCH The bass cut switch also known as a hi pass filter is located on the power supply offering three options at M 100Hz V1 and 200Hz V2 As the MA 37 has an extended low frequency response the bass cut is useful in cleaning up the bottom end V1 is useful for instrumen...

Page 9: ... option Should service be required for your Mojave Audio product please contact support mojaveaudio com Excellent service will also be provided for products beyond the warranty period at a modest cost for parts and labor Please visit mojaveaudio com for the latest updates and technical information MODEL NUMBER SERIAL NUMBER DATE OF PURCHASE PURCHASED FROM________________ 1118 Chestnut St Unit 104 ...

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