since I uploaded Sequoia I have No sounds on my activ speekers

steiko wrote:

My apollo twin doesn`t work with Sequoia, no Audio in and out

is this an old issue, a new issue, what changed(?)... you do not say.

You can try making some change to your settings and compare your results...

verify the mute button is not on...

try a different port, a different cable

>System Settings>Sound make some change

~/Applications/Utilities/Audio Midi Setup.app see whats here...

if in doubt search the developers website or contact their: Support/Help/FAQ/Known issues/compatibility/updates…

Contact a third-party vendor - Apple Support

ref:

https://help.uaudio.com/hc/en-us/articles/206502333-Apollo-Twin-Apollo-Twin-MkII-Mac-Compatibility