I am going to show two different simulations for a 105Hz
tractrix horn with the same 8”driver (B&C 8PE21). The parameter
values for these two simulations are quite different. However the
simulations predict the same great flat freq response within the range I am
interested in (150-800Hz). The diaphragm displacements are different as
to be expected from s1. The first simulations values are close to
InlowSound.com 135Hz mid-bass. And the second simulations values are
close to Aries Cerat model Contendo Reference. I am at a loss as to how
different the two sets of values are but the freq results are close to the
same. I have the room to build either one. Is there something I am
missing? Phase? Time alignment? Which is actually the better one and why?
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