Earthworks M30 Condenser Measurement Microphone

Msrp: $874.00 / Savings: $175.00

0% Interest for 6 Months**

On Purchases of $199 or more with your Sam Ash credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum Monthly Payments Required.

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0% Interest for 6 Months

On select purchases $199 or more with your Sam Ash card now thru 10/24/21.


On Purchases of $199 or more with your Sam Ash credit card.* Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum Monthly Payments Required. Note: Your first order with your Sam Ash Credit Card can only be shipped to the billing address on your application.


*Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo purchase if you pay the promo purchase amount in full within 6 months. If you do not, interest will be charged on the promo purchase from the purchase date. Depending on purchase amount, promotion length and payment allocation, the required minimum monthly payments may or may not pay off purchase by end of promotional period. Regular account terms apply to non-promotional purchases and, after promotion ends, to promotional balance. For new accounts: Purchase APR is 29.99%; Minimum Interest Charge is $2. Existing cardholders should see their credit card agreement for their applicable terms. Subject to credit approval. We reserve the right to discontinue or alter the terms of this offer at any time.


Qualifying items must be purchased at the advertised tagged prices. This offer is not valid for price matches, competitor coupon matches, used or previously marked down items, closeout gear or door busters.

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M30 Condenser Omnidirectional High-Definition Measurement Microphone with a 3kHz - 30kHz Frequency Response at +1/-3dB.
In stock. This item ships from a Sam Ash store. You will be contacted before shipment if there are any issues regarding the condition of this item.

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Earthworks M Series measurement microphones have become the accepted standard for reliable measurement and reference. They are accurate in the time and frequency domain and have exceptionally uniform polar response. They feature flat free-field frequency response, fast impulse response, and are remarkably stable with respect to temperature changes, meeting or exceeding Type 1 specifications.

Measurement for Professionals
The M30 is one of the most respected, accurate, and reliable measurement microphones on the market. Consultants and Acousticians throughout the world rely on the M30 in performing their measurements and acoustical analysis. In addition, they have great respect for the near-perfect polar response of this microphone. The M30 provides an impressive frequency response of 3Hz to 30kHz, near-perfect polar response and it will handle 140dB SPL. For those looking for an extremely accurate and reliable measurement microphone, the Earthworks M30 is it.

Power Requirements
The Earthworks line of measurement microphones require standard 24-48V phantom power and up to 10mA of current. 10mA of current is required to supply Earthworks high-current, bipolar Class-A amplifier within the microphone that is made with all discrete components, with no capacitors in the signal path providing excellent phase response. This also allows the microphone(s) to feed long signal lines up to 300 feet and maintain the full frequency response of the microphone at the other end of the line, without any loss in high-frequencies.

Rugged Construction
The M30 is robust and can be used in a wide variety of environments from the most elegant of research laboratories to making measurements in the outdoors and tropics. In making acoustic measurements, the M30 will be your most trusted, accurate and reliable measurement instrument.


  • One of the Industry's Most Popular Measurement Microphones
  • Meets or ExceedsType1 and applicable IEC 61094 requirements
  • 30kHz Free-Field Frequency Response
  • 140 dB SPL Max Acoustic Input
  • Omnidirectional polar pattern
  • Ideal for SMAART, MLSSA, Spectrafoo, TEF, RTA and all "Audio Band" Measurements
  • Requires 24-48V Phantom Power
  • Operating Temp Range: -20 deg C to +60 deg C ( -4 deg. F to 140 deg. F)
  • Storage Temp Range: -40 deg C to +80 deg C ( -40 deg. F to 176 deg. F)
  • Humidity: Up to 90%

Get your Earthworks M30 Condenser Measurement Microphone today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Measurement Microphone
  • Model NumberM30
    SeriesM Series
    Microphone TypeMeasurement Microphone
    ApplicationStudio Recording Microphone
    Tube MicrophoneNo
    Multi PatternNo
    Polar PatternOmnidirectional
    Frequency Range3Hz-30kHz ± 1/-3dB
    ImpedanceOver 200 ohms
    Shockmount IncludedNo
    Pop Filter IncludedNo
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