Dgad, you nailed it. The room, even treated, will likely produce more distortion to the frequency response curve than the speaker's curve is off-kilter in the first place.
I would, however, take issue with people's ideas that horns "cop out" in the bass. The worst that happens (if you choose your implementation), is as good as any other form of woofer section out there.
I would, however, take issue with people's ideas that horns "cop out" in the bass. The worst that happens (if you choose your implementation), is as good as any other form of woofer section out there.