Welcome. We have 2 Maine coons, both are classic mackerel tabby and it is the thumpity thud with them cause they are always jumping or thundering up and down. Both of them have this itty-bitty little mew and trill. The loudest one out of our crew of 6 is our youngest (DSH) and smallest at just under 6 lb - PuddyWow. He is always talking WOW WOW WOW. Tell us more about your guys, please.