Why do I need power management if I have a great power cord?

Other contributors to this forum also seem to assume that the capacitor banks are there to help the amplifier deliver transients to the speakers outside the range of their normal current demands. 

1. Capacitors are the are the only source of power to the speaker. It is not the power cable coming in. It is the capacitors via the tube or FET or whatever output valve that draws from the well which is the capacitor.
2. There are no transcients outside of the normal current demands. All are inside “normality”… if the amp is not clipping.
3. A speaker is not a shorted amp… that is what he did there.
   1. If fact shorting an amp will often fry an amp,

I bought a PS Audio Stellar mainly to protect my 50k+ electronics from damage. But i heard zero difference in sound quality. We must hear out all the expert opinions but be guided by our own experience. I think my system sounds amazing, with or without the PSA unit. I dont mind a $2500 outlay for the protection it provides. But we should all get off this crazy wagon and just buy records to support our favorite artists. 

I must be really really stupid not to understand much of these past several posts. I would hope the people commenting in such a technically proficient way would recognize that most readers have no clue what they’re saying.

They don't either.

OK. What is far more likely is that the 48 Amp value is actually how much current is present when the power supply of the amp is shorted. Its available to the output section in the form of charged capacitance. This is used to help reduce IMD in the output section and is not something that the output section can pass to the loudspeaker (if you see what I did there 😁).

Yup, caught that. Shorted or driving Acoustats 😁 Talk about a vicious load for an amp. They were the reason for Ampzillas and Crown DC300 amps! The DC 300 would drive a cast iron pipe or a welder! 🤣

Yup, caught that. Shorted or driving Acoustats 😁 Talk about a vicious load for an amp. They were the reason for Ampzillas and Crown DC300 amps! The DC 300 would drive a cast iron pipe or a welder! 🤣

I have a 300A welder.
However I do not use it for speakers.

And I would not consider a Pass amp for use as a welder, but it might be cheaper than some welding machines.