Sorry for the late reply I got caught up with my new job and forgot my password for my previous account.
eselarm you are probably not wrong but as I have continued to use armbian it seems more like armbian can't differentiate between the headphone jack and the internal speakers. It's like they are one and the same this didn't happen with mint or antix although it was still very broken on antix.
[Should I move this part to a separate topic]
Unrelated to the headphone jack but I also found that when my Chromebook goes to sleep or when I close the lid armbian will just unmount itself, have a blinking _ on the upper left of the screen or a terminal I can't get out of so l and I have to reflash my micro sd card as a temporary fix. also the minimal build always fails to install a new desktop environment. But everytime I reflash the latest build of Gnome it runs a bit better each time, which is great.