there is really no point in plugging amps into surge protection powerstipes, etc since sonics are effected. Best bet is probably make sure equipment is well insured
I didn't mean to make such a blanket statement. A high quality power strip will not degrade or restrict the sonics of an amp. I believe some Furman models claim that an amps sonics will not be affected. But I have found that an amp into a passive conditioner does affect its sound in some manner.
Check out the Furman line of power stations. Try one that has a 30 day return policy.
https://www.furmanpower.com/products/all/compact-power/power-station-series
Many power reconditioners such as PS Audio are built to accept an an amp since they are taking AC from the mains and generating a new clean signal for the components.