Anyone ever hear IDQ's in a 4th order

[gotparts90 10+ year member]

well I may get 4 IDQ' s instead of IDmaxes due to someone having a bunch of them. I was thinking of ditching the rear seat and building out a big ol 4th order wall in the back but just wanted to know if anyone has heard them. sealed they jam but I dont like regular ported stuff, way to much of a one note way to do it. I have 2 arc audio 2500cxls to power them with.

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[denim 5,000+ posts]

It sound like you are worried about high output. I would not suggest an IDQ for that. They are very good drivers for quality sound, but I would go with the suggested sealed box size. If not, you might want to find a driver that is more suited to your goals.