Tantrum Audio
TMM9000 measurement microphone by Tantrum Audio, a machined pencil condenser

TMM9000 · Measurement Microphone

Measure The Room,
Not The Mic.

Every TMM9000 has its own calibration file, measured on that microphone. Your software uses it to account for the microphone.

Calibration

Its Own File

Every TMM9000 is measured on its own. The file carries its serial number, so it describes your microphone rather than the average of a batch.

Software

Reads Anywhere

Plain text, the format every measurement program takes. Omnissiah reads it, and so do REW, Smaart and ARTA.

Connection

XLR, 48V Phantom

No sound card of its own, so there is no clock to drift. It runs off the interface already feeding your monitors.

Compared against the Behringer ECM8000, Sonarworks and Earthworks →
Specification
Type
Omnidirectional condenser, measurement
Output
Balanced XLR
Power
48V phantom
Calibration
Individual file, matched to the serial number
File Format
Plain text, read by Omnissiah, REW, Smaart and ARTA
Supplied With
NEXUS, as the standard package mic

Designed and calibrated in the UK.

The wedge-lined wall of an anechoic chamber, the kind of space a free-field microphone comparison is made in
An anechoic chamber, not ours. Photo by Ana Romero López, via Wikimedia Commons, CC BY-SA 4.0.
How It Is Made

Measured Against An Earthworks M50.

Each TMM9000 is measured beside a calibrated Earthworks M50, a lab grade $1,000+ reference microphone, in a calibrated measurement enclosure. Same source, same distance, same moment. The difference is saved as a text file: a list of frequencies and corrections, stamped with the serial number. You download it.

Common Questions

Asked Before You Did

Do I need phantom power?

Yes, 48V, from your interface or a preamp. Almost every interface made this century has it, usually behind a button marked 48V. The microphone will read silent without it.

Is the calibration for this microphone or for the model?

This microphone. Some measurement mics ship one curve for the whole production run, which tells you what the model tends to do rather than what yours does. Every TMM9000 is measured on its own and the file carries its serial number.

Does the calibration file only work in Omnissiah?

No. It is a plain text list of frequencies and corrections, the format every measurement program reads. Omnissiah, REW, Smaart and ARTA all take it. Nothing here is locked to our software.

Do I need this if I already have a measurement mic?

No. Omnissiah works with any measurement microphone, including the one in your drawer. Buy this if you do not have one, or if you want the calibration to describe your microphone rather than the average of a batch.

Does this come with NEXUS?

Yes. The TMM9000 is the standard package microphone, so a NEXUS arrives able to measure the room on the day it lands. Buy one here if you want a spare or a second position.

The mic NEXUS ships with.

Individually calibrated, XLR out, 48V in. Free tracked shipping and a 2-year warranty.

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