Now I'm having doubts. Would a 2x10" Eminence BP102 loaded tuba 30 have more output than a 1x12" Eminence Delta 12 LFA loaded tuba 30? And how wide would a 2x10" Tuba 30 need to be?
Welcome to the forum
You will do much better using the 3012lf driver than the Delta12LFA in terms of maximum output.
Don't get me wrong, I have used the BP102 for years now in my T39's. They are robust and go well.
If you are only going to build 1 or 2 cabs though, even though they are more expensive, the premium drivers in that situation are the way to go.
Please fill in your location in your profile so we might be able to advise getting drivers...
2 x DR 250 (melded array) with March 2012 plans.
4 x 20" BP102 T39's, 2 x 28" 3012lf loaded underway.
3 x WH8 with melded array.Bunter's Audio and Lighting
"like"s would be most appreciated...