Power amps into surge protector/Conditioner or DIRECT to wall? Final verdict?


Just curious. I've heard for years not to plug amp into a surge protection evice. Does this apply to a preamp as well? Are the component fuses enough? Do affordable surge protection/conditioners exist that do not effect sound quality? 
Some of the mid line Furman studio units look nice. Plus you have the SurgeX/Brick devices that look like real winners. However, I'm not wanting any sound quality issues. BUT, I don't want my equipment destroyed as well. 

Thoughts please
aberyclark
I have a Furman power conditioner (a cheap one bought on Amazon) to protect from spring thunderstorms. Back in the nineties a thunderstorm took out the memory on a Denon stereo receiver and I use at least a surge protector on other devices. Have not noticed any sound difference one way or the other but would buy a power conditioner before I bought an after market power cord and just plugged it in the wall. Back in the "old" days of film I had a color darkroom and a voltage stabilizer which I think is another name for power conditioner that was a must for keeping color temperature from shifting.
Let your Tesla power your gear.....free, clean, consistent and isolated power right from your garage. 
I am a bit confused as how to compare devices for their surge protection. 

The Furman PST-8, using series mode surge protection, rates their product at 135VAC for the "over voltage shutoff."

Shunyata, using a hydraulic electromagnetic breaker, rates their Venom
Amp-1 for 40,000A @ 8/50 microseconds for the "transient protection."

The two companies rate their products using different units of measurement. It's like comparing apples to oranges. Which of these devices provides better protection for surge protection? It seems like there should be a standard for reporting so the general public can compare.

To add to the confusion, PS Audio rates their DirectStream Power Plant 12 (a power regenerator) using 3 sets of units; (1) an "over voltage limit" of continuous 5% of setting along with (2) a "peak surge current" of 90,000A and finally (3) a "maximum surge voltage" of 6,000V with a clamp level 340V.

How do I reconcile this to pick the best protection for my stereo? Thanks so much for any insight you can provide.

Bruce