Best practice is to use whole house, then a local one for the AV system. Since you'll need a bunch of outlets, it may help to have a rack-mounted unit. The local protection is for surges that come from inside of the house, like the furnace/AC fan, a water pump if you're on a well, the refrigerator and any other motors, switches used for high current devices and of course, that one cheap dimmer that nobody ever remembers.
I chose a Panamax that shuts off below 90VAC and above 140VAC- many don't do much of anything until 300VAC, which is enough to kill a lot of electronics- low voltage isn't as bad when it's steady-state and some devices will just shut off but voltage spikes can go in either direction, so they need to be minimized.
I don't recommend anything by Munster- all of the power protection I use comes from companies that do almost nothing else.
Where, in Kansas? I have been there when freak storms showed up and it was weird- the sky was orange, green, purple, gray, brown....my uncle was driving us back to their house in Pittsburg and he just pulled over on top of a levy. My mom was from Chanute, by way of Parsons and KC.
