Not too surprisingly, the outdated drivers don't seem to want to work with the newer macOS operating systems (more on that later.). This is a rather old unit (2007ish?), but acts as a great 16 channel analog mixer + 18 channel audio interface (16 individual POST FADER/EQ channels + a stereo main mix!).
I've got an older Alesis MultiMix 16 Firewire mixer that I'd LOVE to use with a newer MacBook Pro (2017 High Sierra, might upgrade to Mojave).