From your post about getting “…another set of M22’s…” I’m not sure if you know that Axiom sells single speakers, so you don’t have to buy them in pairs. So if you don’t want to have an extra speakers sitting around doing nothing for awhile you don’t have to, and can always pick up another later.
As a general rule It’s good to buy the best speakers you can afford. It sounds like for the speakers you’re considering money isn’t the issue. If that’s the case and based on your saying you could use any center speaker I’d amend my recommendation to getting 3 x M22s and 2 x QS8s. Should you choose to keep them when you move to a house these would integrate better into a larger room. Keep in mind it’s best to use the same three speakers for L/C/R and since you can I would highly recommend it.
