Surge suppression AC filtration for the entire house

I currently use a Shunyata research Hydra in my system to “clean” my AC. While it works exceedingly well at what it does I am aware that it will not protect against power surges/lightning etc. So… I’ve been considering surge suppression devices, but have been against placing anything directly in-line with my equipment. My understanding is that these devices limit amp performance.

Apparently one attaches this device “in-line” prior to the fuse box/circuit panel (80kA & 120kA models) or inside the circuit breaker panel (40kA model). …This device is supposed to protect an entire building against “external surges”. APC also makes claims that these devices filter EMI/RFI noise.

Is anyone familiar with these devices? If so, are they suitable for audio applications, or would they restrict performance? …Anything similar or better that you’ve run into? …Prices?

Any information or experience would be greatly appreciated

Cheers,
Mike