I will say the metas are top notch for their size however you can’t defy the laws of physics. They will have spl limitations in larger rooms. If you can live with that then they will be hard to beat. If not plan to spend more for something bigger and as good as the metas otherwise. Adding a sub alone will help the lowest octaves if that matters. Using a crossover to roll off the low end from the metas and have a sub or subs pick that up can help push things further.
For reference I run metas with sub in a 12x12 room off a 150 w/ch amp and they are the best sound ever in there up to about 90db spl or so, which is about as loud as anyone who wants to preserve their ears should aspire to regularly. . After that they will start to show signs of strain/being overdriven.