Plan for infrabass cabs?

Tapped horn isn't suitable for this purpose. 4th order bandpass I think. You don't need a plan -- just calculate it and build, it's very simple. But you have to watch accurately xmax value with high power, so you need a driver with big xmax about 12-14mm and low qts about 0.2-0.3, otherwise your cab will be huge!

Edited by PavelP - 21 December 2013 at 11:19am

I would say the same! double 21" tapping :-)

I've been thinking about infrasub solutions for my rig, but it becomes crazy expensive.
I have 24 bph with fane 18-1500, they don't go low, playing in stacks of minimum 6 pcs helps.

21" tapped / hog have been on my mind, or frontloaded designs like modded invader or superbasshorn.
We're talking 25-50hz, I have 50-50hz covered with insane spl!

Oh, or i could start over and build a new rig:-)

-Louis

Ahaha, that's funny, actually I was just looking at this thread again few days ago:-)

BUT they seem a bit ridicules to me. 21" Tapped should de smaller:-)
I think supar bass horn should go to 25 hz  too (in groups).
A new version of invader / super bass horn could be interesting.
Invaders will go down to 30 hz when used i groups, but with boxes like that I wouldn't need kicks!
The invader has a bit of waste space when used with 18-1500.

I've heard about 21" HOG scoops, about these Tony Wilkens wrote this on speakerplans:
"I do not think that a 21" version is really required other than for dick banging competitions."

I never joined such competitions, but I'm sure I would be distracted by the infrabasslevel!'
But as far as I know the hog plays down to 35hz, so we still miss 25-35 hz.

@Rubic horn
I'm considering something that can be taken appart & put back together again, a buit like the rubic horn, a horn extension or v-plating. Every so often I dreamt about scoops with the bottom part like a big jaw that can open and close down to half-size, half of the scoop volume, the bottom  volume is air.
By having a collapsible scoop the cone & mouth would be protected during transportation.

Doing this in real life is hard I know, resonances has to be avoided.