List : Components with high dynamics

- appropriately amplified high efficiency loudspeakers: such as Duke's and Johnk's designs as well as horns and line arrays in general (I own arrays)

- noncompressed recordings: Metallica's new album being the antithesis of such (from what I've read). For a nice example of a noncompressed rock recording, try Richard Thompson's "Ducknapped" circa 2004.

Tvad. Well said.

Moderate dynamics is indeed achievable with any particular good match but horns and pro-design big box speakers are definitely more highly dynamic than most other speaker types. I would have thought this was self evident to anyone who has been to a concert? Soundstage do not perform test measurements on home audio speakers above 100 db SPL because, according to them, most would be destroyed....a simple fact like this pretty much says it all.