Look at the specs, read the reviews. The 350 used to be the top of the line before they came out with the 500 and 600. The 350 is a nice subwoofer, but not in the same league as the newer 500 and 600. And yes, they will shake your house off its foundation. A lot depends on the size of your room and treatments/room furnishings.

Here are a few key specs that can be found on the specs product page for each speaker.

200 watts versus 500 watt amp
28HZ versus 20Hz
std amp versus digital

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85