OP a passive is a much better option than a port. You’re stuck with a given port size unless you go smaller. But the moving mass of a passive can be varied to blend perfectly between Room, Amp, and Mid drivers. I use putty down to the size of a pepper corn.
No matter the driver it still can only go so low without issues, the same problem exist if the PR were to be OVER dampened. It would BOOM the room..Thus the need for the PR to roll off BEFORE the driver. The real trick it to get the two to work together, with the putty trick..
That dipole setup, no matter what JBL calls it, is pretty effective. The "closer to the wall thing" is giving a quicker FIRST reflective surface little room to BOOM.. The roll off is quicker and more controlled. NO PORT NOISE!! Better bass delivery system.. plane and simple..
I like JBL Bass!! I always have.. Heck i like JBL..
Everest, series. I'll take a double portion, thank you very much..:-)
Regards
No matter the driver it still can only go so low without issues, the same problem exist if the PR were to be OVER dampened. It would BOOM the room..Thus the need for the PR to roll off BEFORE the driver. The real trick it to get the two to work together, with the putty trick..
That dipole setup, no matter what JBL calls it, is pretty effective. The "closer to the wall thing" is giving a quicker FIRST reflective surface little room to BOOM.. The roll off is quicker and more controlled. NO PORT NOISE!! Better bass delivery system.. plane and simple..
I like JBL Bass!! I always have.. Heck i like JBL..
Everest, series. I'll take a double portion, thank you very much..:-)
Regards