I think the 'official' ASR approach is to get active professional monitors that measure as near perfect as possible in every parameter, and EQ them into whatever you want them to be."They will also tell you that the better a system gets, the more recordings that become unlistenable."
Is that not the contention of all pro monitors manufacturers?
I share your dislike for the Klipsh Cornwalls, as with the majority of speakers I have auditioned at shows, they are neither Hi Fi nor accurate pro monitors. The lively sound you mention is easily attained with Highly efficient light weight paper cone drivers costing a fraction of the price of Klipsh The horns are made by electrovoice, not the greatest.
It should be clear to all audiophiles by now, that there are HiFi speakers and monitoring speakers, make your choice and live with it.
I don't do that myself, but it's hard to argue with the logic.