Not sure what you're trying to get at here. More bass sources has always been the answer to smoother bass response and lower bass distortion. A $$$$ serious system that uses a $$$$ ART capable receiver is probably going to have enough headroom to take advantage of ART. Will the system eat...
Sad to say, but at 60db, even if you had subwoofers that went down to 10hz, you probably couldn't hear it much. I don't know the exact research on it, but this graph suggests that you need to get to about 80db to hear 20hz.
@amirm, I'm with Kevin here, the orange graph does seem to more closely resemble your original measurements.
The Linton grill had, I believe, smooth bevels hidden by the grill cloth that helped smooth out the diffraction, so I think we're all wondering if that's also the case here.
I don't care about the angling, I'm interested in the implementation of the rear firing woofers on the towers. Would love if it allowed close placement to the front wall and could fill the front wall SBIR.
I'm also not convinced a waveguide is needed for high fidelity. For example, I see no...
Expanding the soundstage width by increasing lateral reflections may very well come at the cost of center imaging focus. That's a trade-off you might need to decide for yourself.