I'm thinking of upgrading my M22's with some M80s. Right now I have my M22s crossed over at 60 hz and the rest of my speakers at 80hz. (I'm using a Denon 3808). With the M80s I could cross-over at 40hz or lower. My question is that I've read (I think in users manuals or somewhere) that when setting your main's crossover lower than the rest of the speakers you can have a gap in bass frequencies. Is that true? And if it is, that's stupid.

M80v3s, M5HP, QS4s, M22s, EP350v3, Denon X3700H