David Clark Microphone M-7 D/C

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Part# 11-08282
MFR Model# 09168P-31


This Electret Microphone is a noise canceling type designed to operate in place of carbon and amplified dynamic microphones. The microphone provides clear, crisp voice transmission while dramatically reducing omni-directional ambient noise. It will not operate in circuits that do not supply a DC bias voltage.

Most modern aviation communications equipment do supply this required voltage. If unsure, consult with your radio technical manual or with your local avionics shop. It is intended for use with wire booms.
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WARNING: Cancer and Reproductive Harm -



Considerably better than my original softcom mic that died. I would definitely buy this mic again.

Greg M Verified Purchase


July 31, 2022

Product works well. I replaced a M-1 microphone. You also need the lead from the microphone to the headset since the one on the M-1 is not detachable.

Carsten H Verified Purchase


February 23, 2022

Ismaele K Verified Purchase


December 15, 2021

I have two David Clark with Microphone Dynamic M87 / AIC. I need to use these headphones on a Cirrus SR 20 SN 1086. N27SJ. Year 2000. What MIC do you recommend for this plane? M-7? M-7 D / C ?? WHICH???

Claudio D
June 27, 2021

Replacing the Microphone renewed the DC headset- which is probably 45 years old but still works fine otherwise. Works perfectly.

Brian V
January 25, 2021

I installed this on a David Clark H10-40 as part of an overall upgrade to replace the M4 electret microphone. The M4 uses a brown colored cap to boost the signal, and the M7 doesnt need the cap. Consequently replacing the M4 with the M7 will require removing foam and the speaker in the left cup to access the wiring, removing the cap and resoldering the red and white wires from the microphone boom. Performance is superb and well worth the additional effort.

Larry V
August 18, 2020

As advertised. This microphone works flawlessly in a high noise environment. Great product.

Jim C
August 26, 2017

One of the best investments Ive ever made. Had a dead mic on an older H10-40 and replaced with this one. 100% compatible. Mic quality is so good, this (previously inop) headset is now my primary.

Norm S
March 4, 2017

I have two David Clark with M-87 / AIG mic. Your mics not working. I need to buy two MIC. What do you recommend for a Cirrus SR 20 S1086. Mod 2000 ??? I am looking forward to your response. Best regards

June 27, 2021

DC is well know for quality and ruggedness and this mic delivers both. The two things that dropped it from a 5 to a 4 are that there was no muff included, I assumed that when you spend $70 on a new mic it would come with a muff. Secondly, the mic I received was black, I was hoping for the DC signature green like the picture. Both of these issues are minor disappointments and Im sure the mic will give me many years of service.

Jeff O
June 6, 2016


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: I have an older DC headset and the microphone is defective. It says on it that it is a model M-4. Will the M-7 fit and work?

We recommend part number 11-05896 for replacing the M-4 electret microphone.

Q: Does this David Clark M-7 micorphone work with DC H10-30 and does it come with a cable?

Yes, this is the microphone that comes with the H10-30. This does not come with a cable.

Q: What is the actual dB of noise cancelling this David Clark M-7 mic provides?

Communications can be carried on in noise levels up to 120db SPL.

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