I live in Kansas city and we have lots of electrical action with our thunderstorms. I run a surge protector on my main panel, two Shunyata Typhon 2s on my amps, and a Everest X for the other components. If you read the fine print on the audiophile power conditioners I have looked into, they don't state that they protect the system as a surge protector for large spikes. Yes, they have surge circuit breakers, but that's not their primary function. I have never seen a surge damage insurance guarantee from an audiophile power conditioner. My Leviton surge protector on my main panel has one, but I don't see Leviton paying for one of our systems.
Worried about lightning I had my electrician add a subpanel for my three dedicated circuits. Power flows from my main panel through a 60 amp breaker with the largest copper wire that would fit into a 100% copper knife switch that completely isolates my system. I am told even protection from a direct lightning hit on my house. When the knife switch is turned on the big copper cable flows out of the switch box to a subpanel with 6 breaker slots. Three 30 amp breakers are mounted in the subpanel on the same power leg (every other breaker slot). Added to the sub panel is an Environmental Potentials surge protector and ground filters for each circuit (3). The EP surge protector converts the surge to heat rather than dumping it to the ground or neutral cables. The sound IMPROVMENT from the dedicated panel and EP system was certainly noteworthy with better defined bass and tightening of the sound stage to name a couple of stand outs. Remember, I started with dedicated circuits and the Shunyata Typhon 2s and the Everest X and still had sonic gains. I shut the system down and throw the knife switch when I know there are storms coming. I'm way more calm when I can't throw the switch for whatever reason now that I have the EP surge system.
I am not an engineer and what I have told you is what I have read or been told by people I think should know. If I am missing something or am ill-informed please let me know here or in a PM. Sonic gains and better protection, contact V-Audio if you want to add an EP system.

