ive always been a fan of the solobaric L5's and L7 square subs they dont require a very big box and seem to hit hard
Weird you say that, as they actually require a very large box compared to other round subs of the same size.
Ive always hated the square cones. Square cones are inherently weaker than round ones, so Kicker adds weight in the form of stiffening ribs to the cone to keep it from warping from the uneven stress displayed about the outer edge.
Also, the corners on the square design, and more specifically the problems that arise with the surround in these corners, makes for a limiting factor in possible cone excursion. So in other words, their big claim to fame, more displacement potential from more cone area, is generally offset by other competing subs that have less cone area (round, stronger cones) but allow for more excursion, thereby making up any differences in displacement potential.
Finally, the entire square cone idea is a scam. If you want/need more cone area, instead of falling for Kicker's gimmick, just up-size to the next sized larger round cone. All that extra added weight to the cone, the surround that limits excursion... for what? More cone area? Puhlease. The only real time the square is actually utilized poperly is in the SoloX 18, any install that arrays the subs so close togther that they can be stacked in square form, or a situation where cone diameter is limited by space restrictions. The vast majority of installs using square cones, dont even need any of the real benefits they give.
Ive been trying to talk Tracey at Kicker/Stillwater Designs into producing another nice round sub for a couple years now. He keeps implying that its coming, but I dont see anything on the horizon yet.