All of this discussion seems to be predicated on additive thinking. But consider for a moment that the sum total of what is available from the recording you are trying to reproduce is already captive. Do you want to add to it? Or are you trying to release it from its encapsulation with a minimum of loss or compromise? What is the tube rolling, cable choosing, equalizing, theorizing, arguing, philosophizing, posturing, modifying, etc, intended to accomplish?
There is no single driver that can reproduce a full bandwidth but many of them can provide a natural clarity that audiophile A values enough to accept that compromise. Meanwhile, he enjoys a coherence and continuity that multi-driver, full bandwidth speakers can't imagine.
Shut up and pick your poison.
Tweaks do not contribute positively at a theoretical level but they provide seasoning that many seem to enjoy. Sometimes this is to cheat by bringing an inexpensive product closer to the level of established, and/or superior items. Some audio types are just tweak believers or mod believers and they presume the soup will be improved by salt without so much as tasting it. No category or psychological profile is left unfilled by audiophiles.
There is much to this and someone should write a book. I can't because I no longer even read them.
Replace your weakest link first. Or wait and jump on whatever is a deal you can't refuse. Or replace your speakers. All this advice has merit but none of it is universal. Superman can kick Batman's ass though.
