Low/no signal from audio interface!

Hello juls3305,

Thank you for using Apple Support Communities. Sounds like you're experiencing some issues when trying to use your Scarlet Solo audio interface with your Mac. If so, we'd like to help out by recommending some troubleshooting steps to help isolate this issue. Let's follow the steps below:

1.) For isolating purposes, connect your audio interface to a different Mac. This can let us know if this issue occurs on multiple computers or if it's only affecting one specific Mac.

2.) If this issue occurs on multiple computers, check for new firmware updates that might be available for your accessory: Focusrite Downloads

3.) If this issue only occurs on one specific Mac, try testing this issue in safe mode. This step can help isolate possible software related issues: Use safe mode on your Mac - Apple Support

Apple silicon

1.) Shut down your Mac.

2.) Turn on your Mac and continue to press and hold the power button until you see the startup options window.

3.) Select your startup disk, then press and hold the Shift key while clicking “Continue in Safe Mode.”

4.) Log in to your Mac. You might be asked to log in again.

Depending on your results, follow the steps under “If the issue continues in safe mode” or “If the issue doesn't continue in safe mode”.

4.) Make sure all update have been installed on your Mac: Update macOS on Mac - Apple Support

We hope these steps help you. Thank you for using Apple Support Communities.

Thanks for replying, juls3305, and that additional info, it really helps! It really seems like you have isolated this well by using multiple interfaces, mics, cables and Mac computers. At this point, please contact Apple directly for further investigation into your situation: Apple Support

Have a great day and thanks for using the Apple Support Communities!