Mark, I know you may cringe at the thought of this but I have heard the difference that the upgraded crossovers, diffraction-be-gone pads, resonance dampening and other tweaks have done to another Tyler speaker I'm already familiar with. I will be doing that to both of the Tyler's, as well as going external with the crossovers to further reduce unwanted artifacts.
At least that's the plan. You know me, the plan can change in a heartbeat but that's where I'm headed now at least. I'm thinkin' hardcore of losing the two Tyler subs to finance such an upgrade, even though they do great things for a 2.2 HT rig. Thing is, HT is not my priority. 2 channel is.
I will say this, the most transparent speakers I have heard to date are the speakers Troy had down in Charleston. Quads, I believe. They didn't rock my world but I can say that when they were actually working, they completely disappeared with only minor [at the time] gripes concerning imaging and the palpability thereof.
What would you suggest?