488 has two mic/line channels and six line only
488 MKII has four mic/line channels and four line only
488 has no phantom power
488 MKII has phantom power (via two xlr jacks) on channels 1 and 2
488 has hi and lo shelving eq only
488 MKII has hi and lo shelving plus sweepable mid
Get the MKII back.
Orbiting this at a distance of roughly ninety-two million miles is an utterly insignificant little blue green planet whose ape-descended life forms are so amazingly primitive that they still think digital recording is a pretty neat idea.