a Microphone to match REW

Sonarworks sells a frequency correcting software. Because of this they need quite linear, calibrated microphones. There is a 21 days test version for download.
Anyway, this is no software that is of much use for you,because it is for studio settings. Has nothing to do and no use for speaker building. If this mike was no good, their software would suffer, so I trust them more than some low cost, private calibration for maybe 50€.
The price for the mike is very low, I don't think there is anything better for less or even twice the money. You get calibration of different angles, this is quite handy for room and in car measurements.

PS don't forget an XLR cable, 5 meter will come handy.
 
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this > Sonarworks SoundID reference - requires a license?
if there is another microphone that you use and it is well made, tell me...
The SoundID package does, the microphone alone not. It comes with individual cal files, to be downloaded from Sonarworks. SW actually does a good job in the support department.

With a budget around €100, this is perfectly fine for a first measurement microphone. The other options came by already but this one and this one. Frank Jordan seems not to be very well known in DIY territory, but in Europe certainly fills a gap. Thomas Ahlersmeyer must have the record for calibrating mikes for DIY folks in Europe, maybe worldwide.

With a bit of a higher budget, the iSemcon EMX7150 or the Beyerdynamic MM1 could fit the bill. If you want to go further up, pick any useful pro microphone, NTI, Earthworks and others come to mind.
 
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@jeffrowland
But I made a test of four microphones here (note there are other interresting contributions)
The SonarWorks XREF20 is a good calibrated microphone for SPL measurements.
If you look the REW website Equipement :
The simplest configuration for most acoustic measurement purposes is a calibrated USB microphone (miniDSP's UMIK-1 is recommended) and your computer's headphone or HDMI output. An analog measurement microphone (Dayton Audio's EMM-6, for example) will need a suitable interface with a mic preamp and phantom power, such as Steinberg's UR22C or the Focusrite Scarlett 2i2.
you have to acquire a good sound card : Steinberg's UR22C or the Focusrite Scarlett 2i2 etc.
Just see if you have linux driver for the soundcard the focusrite/steinberg seem compatible,
Note the miniDSP's UMIK-1 is compatible Linux, you have all in one.
You don't need to spend a lot to have a good measurement system.
 
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do you have a pic of the mic support.
img_8751-jpeg.1453552

On the right the one I used more than a decade ago. The light stand is still handy for room acoustics (goes up high if needed). The left one is a DIY XLR female wrought into a snug fitting tube that has the diameter of almost all measurement mikes.
IMG_8753.jpeg
 

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@jeffrowland
But I made a test of four microphones here (note there are other interresting contributions)
The SonarWorks XREF20 is a good calibrated microphone for SPL measurements.
If you look the REW website Equipement :
The simplest configuration for most acoustic measurement purposes is a calibrated USB microphone (miniDSP's UMIK-1 is recommended) and your computer's headphone or HDMI output. An analog measurement microphone (Dayton Audio's EMM-6, for example) will need a suitable interface with a mic preamp and phantom power, such as Steinberg's UR22C or the Focusrite Scarlett 2i2.
you have to acquire a good sound card : Steinberg's UR22C or the Focusrite Scarlett 2i2 etc.
Just see if you have linux driver for the soundcard the focusrite/steinberg seem compatible,
Note the miniDSP's UMIK-1 is compatible Linux, you have all in one.
You don't need to spend a lot to have a good measurement system.

😵

I'm just starting to understand, all this cool stuff is making me anxious!
🙂
 
When you get feed up with passive components and all the money wasted with them, the next stage is active with DSP crossover.
Some may say it is the best idea to skip the passive stuff and do it active from the start.
There are some in this forum that started with passive and never wanted active, but during that process realized that active is better for them and never want to go back...
 
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I know that the non-windowers make it a religion not to use anything from Bill. Like "I will never drive a Japanese car" or hysterical non flesh eating middle aged women.
Anyway, a nice, used Dell latitude laptop with Win 10-64 will save you time and sorrow if you use it for anything around speaker design. For the next 10 years at least.
 
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