I don’t know if the two Meridian systems use the same head unit. If they do, then it can be programmed. Coming from the BMW / Mini world, we could program just about everything with an OBDII module and an app called BimmerCode.
As far as an EQ fixing a bad recording, song by song, I don’t buy that for a second. Having built over 30 audiophile car systems, once a tune is complete and plays a known source recording accurately, every song will sound as it was recorded. It’s a set it and forget it thing. The Meridian 380 sounds OK, but needs some tweaking (a sub, better tweets to start) but will never be phenomenal....and I’m ok with that.