surg protection / high output amps


hello all ...
I have recently purchased a pair of McIntosh MC611 mono block amps ... each draws 6.6 amperes ... any recommendations on how to protect them from power spikes etc to absolutely assure their protection  ?
my thanks in advance
Ag insider logo xs@2xrandy4513
the adcom ace-515 is an AC Enhancer.

I took the cover off, all look like factory new (no mice ate these wires), nothing burnt from prior lightning strikes, ....

One switch for entire system is handy. It filters/enhances/prevents hash from it's power input, and 7 outputs.

What it does, and does well, is separate 2 switched amp outlets from 4 switched devices, and has 1 unswitched pass thru outlet.

It has an automatic turn on time delay of 10 secs for the 2 amp outlets to come on after the devices , and a 30 second time delay for the amps to turn off first, 30 secs for them to discharge, then turns off devices with no thump.

Vintage, got lucky again.
I agree with the whole house protection...after a zap took out a Vandersteen amp.
For maximum equipment protection, consider surge suppressors that use series-mode devices. Far better than those using "sacrificial" MOVs that degrade over time. Good examples are Zero Surge, Brickwall and SurgeX. The Torus/Bryston units are much more expensive. 
new/used

after I bought mine, I read that IF they have dealt with spikes, repeatedly, there may be damage ... to parts within, never occurred to me, just passing what i read along ..
I just bought this old old Power conditioner,

https://stereonomono.blogspot.com/2012/06/adcom-ace-515-1987.html

a desirable feature, besides protection, is the sequenced time delay, turns accessories on first, then 10 secs later powers the amp(s). Turns off amp first, delays 30 secs then turns off accessories.

probably too small for you, just thought I would mention that feature.

A friend has this currently available one, big enough?

https://www.bhphotovideo.com/c/product/395927-REG/Monster_Power_109096_HTS_3600_Power_Strip.html

I like the whole house idea too, 
If you can’t go whole house, I second a Furman product... particularly in the Elite realm... they have many options.
If you own your own home, I suggest a whole house surge protector.
They are self sacrificial, and don't cost much, though you do need a licensed electrician to install it.
But it does give you peace of mind, as well as protecting all of your electrical equipment throughout the house.
Bob
You could consider a 15A product from a company like APC, Furman, SurgeX, Torus/Bryston. I'd recommend looking at SurgeX first.