Hi Folks,
I am intrigued by a few cabinets available for the bass guitar player that are more or less conventional shelf ported designs that have the woofer mounted in the port firing from one side to the other.
One such example is the Bill Fitzmaurice Omni 15. I own one of these and the bottom end is quite spectacular. The port is flared, and the space behind the baffle is completely open (that is to say that its just a reflex box with a flared port and the woofer mounted in the port
There are other examples, such as the Boom Bass Cabinets that have a second woofer firing downwards into the slot port.
I believe that the two woofers in this box share the same airspace, But for the sake of this post, lets assume the front facing speaker is a sealed back midrange.
How would I model such a beast in Hornresp? I've tried modelling them as a tapped horn but can't seem to get anything approaching a normal looking output.
The BFM Omni 15 is a great box in the low end (it has a pretty undesirable midrange), so I would like to understand how to model these beasts to see if I can tailor them to drivers I own.
Can anybody help?
I am intrigued by a few cabinets available for the bass guitar player that are more or less conventional shelf ported designs that have the woofer mounted in the port firing from one side to the other.
One such example is the Bill Fitzmaurice Omni 15. I own one of these and the bottom end is quite spectacular. The port is flared, and the space behind the baffle is completely open (that is to say that its just a reflex box with a flared port and the woofer mounted in the port
There are other examples, such as the Boom Bass Cabinets that have a second woofer firing downwards into the slot port.
I believe that the two woofers in this box share the same airspace, But for the sake of this post, lets assume the front facing speaker is a sealed back midrange.
How would I model such a beast in Hornresp? I've tried modelling them as a tapped horn but can't seem to get anything approaching a normal looking output.
The BFM Omni 15 is a great box in the low end (it has a pretty undesirable midrange), so I would like to understand how to model these beasts to see if I can tailor them to drivers I own.
Can anybody help?
Right; basically the pioneer's side mount parabolic horn stub used on one of its early cinema expo bass horn designs to extend/control HF.
The models in this thread may get you closer than a TH model, but you still are stuck with with something a little different:
https://www.diyaudio.com/community/...nifold-mtb-be-better-than-tapped-horn.391782/
If the back is open, then it's a BP8.
If the back is closed, the it's a BP6S and can be modeled as a TH.
If the back is closed, the it's a BP6S and can be modeled as a TH.
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I'm curious too, also owning Omni 12 plans but finding the box size a bit too big to justify building.
Would like to know how to model it, especially around any benefit of the flared port, to see if this design has any advantage over other configurations...
Model it as a TH. Use Vrc to represent the volume of the enclosure behind the driver, not including the vent. Set L12=0.01 and S1,S2=start of vent,S3=location of driver and S4=vent mouth. Lrc is going to be off, of course.