Audyssey ACM1-X Individually Calibrated Measurement Microphone

In this review of the Audyssey ACM1-X microphone the bottom line is simple: this is a purpose-built calibration tool for owners who want precise room correction using Audyssey's MultEQ-X workflow. The mic is aimed at home theater and AV enthusiasts who will run measurements from a Windows 10/11 PC with the MultEQ-X app, and its single biggest selling point is that each unit is individually measured and shipped with a unique calibration file so measurements can be corrected to a near Type 1 reference level.

Key Features

• Pair with MultEQ-X: Designed exclusively for use with the MultEQ-X app, the microphone enables the advanced, app-based room calibration flow on supported AV receivers and processors.
• Individually calibrated: Each ACM1-X is analyzed in Audyssey's laboratory and assigned its own calibration file so room measurements are corrected for that specific mic's response.
• Omnidirectional pickup: The microphone captures sound from all directions, providing consistent, accurate data for MultEQ-X to calculate room EQ corrections.
• Professional measurement quality: Equivalent in capture behavior to the factory mic found in many Audyssey-enabled AVRs, giving a familiar measurement response for installers and hobbyists.
• App-based control: MultEQ-X gives fine control over calibration settings and detailed acoustic insight so users can tailor correction to listening preferences.
• Trusted engineering: Built by Audyssey Laboratories with research-based acoustic solutions used across theaters, cars, and consumer AV.

Who It's For

The ACM1-X is for AV enthusiasts, installers, and small-studio users who plan to run MultEQ-X on a Windows 10 or 11 PC and want the best possible microphone trace for room correction. It is especially useful when an owner needs repeatable, consistent measurements and values the individually assigned calibration file that corrects mic-to-mic variation.

It is not for casual listeners who never plan to use MultEQ-X, or for users who expect a plug-and-play USB microphone for recording; the ACM1-X is a measurement instrument intended to be used with Audyssey's app and compatible AVRs or processors, so confirm device support in MultEQ-X documentation before purchase.

Pros & Cons

Pros

• Individually calibrated unit files improve measurement accuracy compared with generic mics.
• Omnidirectional response yields consistent room data for MultEQ-X corrections.
• Works within Audyssey's MultEQ-X app for detailed calibration control favored by power users.
• Manufactured and tested by a well-established acoustic research company.

Cons

• Requires the MultEQ-X app on Windows 10/11 and may not be supported by every Audyssey-enabled AVR or processor.
• Not intended as a general-purpose recording microphone; it is a dedicated measurement tool.

Specifications

Product	ACM1-X individually calibrated measurement microphone
Compatibility	Audyssey MultEQ-X app on Windows 10 and 11 (check device support)
Polar pattern	Omnidirectional
Calibration	Individually measured and assigned a unique calibration file
Intended use	Room acoustics correction and AVR calibration
Manufacturer	Audyssey Laboratories, Inc.

Our Verdict

The Audyssey ACM1-X is a specialist tool worth buying for anyone committed to using MultEQ-X and who wants the most accurate microphone trace for room correction; the individual calibration and omnidirectional response make it a good value for installers and dedicated home theater owners, provided the user's AVR or processor is supported by the MultEQ-X workflow.

Frequently Asked Questions

Will this mic work with any Audyssey-enabled AVR?
The microphone is intended for use with MultEQ-X but not every Audyssey-enabled receiver or processor supports MultEQ-X, so consult the app documentation to confirm compatibility.

Do I need special software to use the mic?
Yes, the ACM1-X is designed to work with the MultEQ-X app available from the Microsoft Store on Windows 10 and 11; an in-app purchase is required for activation.

Is this suitable for recording or podcasting?
No, the ACM1-X is a measurement microphone for room calibration and is not optimized for studio recording or voice work.