For me it is obvious if your house,power tools,even your vehicle.
Remember the power company when the lights dimmed for lack of power.
Lack of power everything is strained,nothing even your 9v Mikita drill compared to a 20v makita(talk about effortless power)a lot more in reserve.
As far as audio you instantly hear it.
The 60a Torus and the 20a are both 240v
I ran 8awg x2 from the main breaker box to each Torus
The 60a has its own receptacle and the 20a 240v Torus I had my electrician make a separate smaller breaker box(10 receptacles)with the 240v receptacle also(Just in case).
The front 60a Torus runs 28s and a 7 Bryston amps and a Svs sb-16 sub.
The rear 20a Torus runs 2x7ssst2,another sb-16 and Jvc projector,oppo 203,Bryston bd-17 cubed bda-2 and the bda-3 dac.
Yrs ago I had all Shunyata for amps 2xdd-15 subs and components.
I auditioned a Torus 15a years ago as an experiment with the Shunyatas.
They made the music sound the same WTF.
So I thought perhaps the one 15a Torus couldn’t all the amps dd-15s and components.
Soooo I auditioned a 20a with the 15a Torus and holy MFr Everything and I mean everything just opened up.
The stage was enormous,the subs were chuffing along.
Just an effortlessness to the music,no strain.
Hard to explain but a feeling like you are at a live event,dynamics,huge soundstage ect.
Protection :like in my earlier post,
2xF-113s into the Torus and the other 2xF-113s into the wall.
We’ll there was a thunder storm and 2x113s we’re toast that we’re wall direct and the other two into the Torus plus projector,preamp ect ect all good to go.
Sometimes I sell the odd component(vac pre,sub or whatever)
Have had these Torus(s) for quite awhile and No I would not sell them as I find they are that good.
Huge upgrade compared to the using just the wall.
I did an experiment with some commercial amps just to see.
I believe the y each put out around 3000 w and I used them just with my mains.
The highs were a bit harsh,not enough to shut things down.
The percussion was OMFG that is the best I have heard from any amplifier.
They were crown amps.
The highs can be fatiguing after awhile but the percussion is out of this world,the best I ever heard.
Thought maybe trying active and run crown amps for the bottom and Bryston for the mid/highs .
Course my imported China doll is threatening to buy me a reeeeal nice radio,so we’ll have to see.