Does Heavy Metal music benefit from a high end audio system?

I listen to Classical about 99%.  The other listening is mainly 60s/70s pop or Classic Rock.  Most of the pop music sounds just fine to me on a lower end system.  The good producers of the day mixed and conceived the tunes thinking that the listener would be using AM radio in a car or a cheap transistor.  Even if I BT the Shirelles or some Phil Spector production from my phone to a mid Fi system it’s still a massive increase in SQ compared to what I used back in the day.  If I listen to such fare on my best system it sounds like overkill, like driving an expensive car in the driveway 

No.

I think that in the post production of mix down of such loud music, the recording engineers use "limiters" to clip the wave forms so to not distort the music on the CD or record. When I've transferred CD's to a WAV file on the computer, the wave file is always trimmed off like a crew cut. I assume this is necessary to reduce distortion as a result of the recording limitation. If this is so, I think that playing back a truncated signal would present challenges such as  listener fatigue. I also suspect that faithful reproduction would be impossible or at least futile.    

Absolutely! Unfortunately, a percentage of this genre has marginal recording quality at best. For example, Iron Maiden, to me is rough on the ears. Still enjoyable albums!

Depends on the high-end and the Metal.  Some speakers purposely have a mid-bass punch that make Metal more visceral, and others roll off the top to keep that Metal from sounding like a high-speed dental drill.  If the high-end speaker goes for a more controlled bass and an extended treble, some Metal may not sound as good.