I want to compare and contrast. I will try doing a sweep with the xo activated.
I wonder if I'll need a high pass, so far seems like no, but I am a noob so, we'll see.
These are my thoughts after getting the crown and a low pass running. The dynamic potential of just one of my PPSLs is pretty on point. I would suggest anyone aiming for a certain Dynamic output, to do as I did, and develop towards your peak spl goals using one channel. Considering stereo, you're bass SQ will suffer if listening to material that moves lower bass left or right, while pushing the dynamic ability of the system. If an explosion came from the right....the right subwoofer will have to reach for the dynamics more so than usual...if this pushes it much closer to its xmax, you will hear it, yet the bass will be cleaner when coming from center...Keep the same SQ by aiming for max spl with one channel.
Theres a lot of loudspeaker design philosophy that revolves around, moving "points" 2x above or below another point of reference, or keeping excursion with 1/2 of xmax....simulating in 1/2 space.
I employ one to design towards quality output that reaches max spl goals, using only the L or R channel... If I had of aimed for less, I would of been disappointed, I feel. The sound is so clean when listened to, below, 100db, all the way down to 20hz, using just one PPSL.
I guess technically speaking you wouldn't want to have to use a 2nd order low pass at 21hz lol BUT since the dynamic ability of the system is sooooo high....I mean, I did design it to be able to do this....The noise floor should be higher because of what I did, right? Is that an issue on subwoofer channels? The only thing I can think to do, to expose the differences, is take measurements......I guess thats sign language for "I can't hear "the bad thing".....". Actually I can hear "too loud" lol right around the corner! with much more gain left on the eq and other gain stages inside the DSP. Don't forget...My loud is your too loud. Probably about 115db I bet. I didnt have mic hooked up at the time of demo session before dinner....since I had to reinstall windows bla bla bla, pain in the butt...I was smart enough to touch the wire...Highest I saw was 100 volts? 16 ohms...
Observation
Playing test tones through PPSL, caused a good amount of vibration in the midwoofer sitting on top of it. My thought was that, the only thing to dampen that effect would be Qes/Qms and the Box(air mass?).....and no electronic filter is going to improve or worsen this part of the game, in regards to our ability to adjust "Q" with a filter.
If that attitude is wrong, how so?
Something different happen if that woofer was connected to an amplifier?