Yeh, but maybe its also unfair to ask the speaker to do more than their advertised frequency range suggests. If they can't output below 40Hz might as well not make them try, even if setup "full range". Not sure though. I'll keep testing them full range unless somethign odd pops up and i want to try and fix it.My philosophy is to high pass the speakers if you're going to be using subs, it makes no sense to me to ding a speaker for not having enough bass or distorting in the bass when it wouldn't happen under your normal usage.
For my end use, running without a sub would be a nice bonus. Simpler setup, fewer things to tune and integrate. But I do have a sub already that i'm not using so its no problem to add it.