With post #18, remove 2.84" from the depth.
Add 2.84" to the height.
Now you have a front L-vented enclosure!
Add 2.84" to the height.
Now you have a front L-vented enclosure!
if you don't offset the drivers properly and tune the massload properly you won't get that wide nice smooth FR, so its not just another BRIt's just a BR enclosure. Nothing special other than 2 x 18" drivers in the same enclosure.
As the Dude states in the thread title and OP, he also wants accuracy in the ≥200Hz range, hence your simulations in posts #28,29,34 & 36 fail to provide for his want, as they all have huge cancellations in the ≥100 range.ODTaperedTL @ 404.916 liters.
Dude wants 20hz, hence longer than 10 foot path.