Originally Posted by beastaudio
I didn't get much gain up top regardless of how I set the delay on them. Right now they are identically set phase/delay wise and both setups are running full sub band.
Looking at this again, interesting. I'd be curious to experiment with various low pass points on the rear sub to attempt to further optimize the FR through the modal region, ... and perhaps filling in the crucial 50-80 region.
Having never fully explored blending a mixed alignment system, I'm just not well versed in what you're up against. I would love to examine what transpires upon sealing the vent in the rear, and temporarily employing it as a sealed/IB, then explore fully additive summation across the full band. I've also have zero experience with such a ported IB, and how elements like any type of lossiness, leaks, or internal damping, etc., influence the output, and can those items be attributable to the FR behavior up top? I've no clue, ... anyone?
Obviously, splitting hairs here, as the bottom end of the system is significantly increased, and the FR is very nice, but wth, still curious.