You do realize that the length and the sizing in the box you show are grouped as one lumped parameter by the drivers. They see the entire volume, and port as an acoustical impedance. The dividing of the box into sections is for the sake of computation of flared horn segments. A straight horn could usually be modeled in three sections or less. Driver positioning as discussed before only has an influence on how the port behaves.This is my case, where S3 is right in the middle of the tho holes.
In the Eg field enter 0 volts.
That will allow you to model a perfect driver on your horn . Since your driver has no true physical parameters. I have been doing similar work with planars.
may be i am stupid but rreally i dont understand...A Rear Loaded Horn is simply a Normal horn with no Rear Chamber. Really that is all it is. Instead of a Rear Chamber the driver is mounted externally, and you get the sum of the horn and drivers response.
To build one you do the exact same things as the Normal Horn builds (Simple or Advanced,) and just leave the Rear Chamber off. You must then use the Combined Response Graph to get the true FR.
Note: Here I am using the cheat to allow the use of a single segment horn in the Loudspeaker Wizard.
Don't know if Soho is active.After modelling an OD horn 380 cm long, it's SPL has some ripples. Could I space a second offset driver at 1/4 wave distance from the first to compensate for major dips or would it make problems worse ?
I don't want to use a back chamber but let it radiate free to air.
Thanks a lot, Marc