Mono error message coming up

Hi David Mann, thanks for your post! Sorry to hear you are encountering an issue during the measurements!

I recommend checking out a couple of speaker measurement troubleshooting guides:

• "Mono signal detected" error message
• Stereo speaker measurement troubleshooting guide

They include some basic, but also rather important things to check for a successful measurement. 

Let us know how it goes!

Best regards,

Zane