Ow they are integrated properly you under estimate how long I been working on this. This ie over a decade in the making gone from yamaha to denon and back yo yamaha, I’ve purchased countless speakers and subs but never had want I am looking for. Until you have heard an all sealed system it is impossible to know the benefits they hold over ported. Ported, transmission line and passive radiators are all dirty due to group delay transmission has the lowest of three and passive radiators are the worst. I also have never heard a pair of ported speakers that a manufacturer makes that doesn’t cuff when you turn it up so unless I want to listen quite ports are not the answer they are a curse of the speaker industry.

The minidsp and avr both have the necessary high/low pass filters on the issue is they are still audible at the port even though they shouldn’t be. If I move the crossover higher, the subs are then playing too high in the bass so it shouts even with room correction and additional dsp which is not ideal as the bass will come out too loud. I have them eq’d and am looking at moving over to fir soon as learning eqing is not ideal so for phase alignment.

From my understanding it is possible to align them but it is very challenging as not only is the group delay for ports through the roof, it is the measurement mic cant tell what is the port and what is the speaker so you can’t accurately align the phase.