Thanks for the welcome and the advice. Since rumble is not a priority (in fact, our downstair neighbours might be happier without it), I might still go for the EP175 if it performs well with my M22s for music. I was delighted to come across Axiom in 2004, I was living in the US back then, and have been very happy with my M22s, so I'm inclined to stay with Axiom.

But I'll also consider the EP350 and see what other subs are available here in the Netherlands -- or what other companies I trust to send their product here. Thanks again, guys.