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Hi all first of all,the Tempest horn is not 97db efficient.
1- its measured at 2metres distance instead of 1metre
2- its one box in 2pi space-youl find the labhorn response much like this in 2pi space.
So really its not as bad as what it looks
3-The only concern for the tempest is its power compression
Also the labhorn uses 2 12"s-it couldve been one 15"(IMHO) but easier to fit smaller drivers i guess.
You could always re design the horn to be how you want it ie lower frequency loading and even larger!
Hearing Clean 50hz in a large venue is something unusual!
The labhorn is ~97db efficient too in 2pi
Check out the documentation page on the prosoundweb forum
Cheers!
Mike.e
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