Half-size Orelo VS traditional midbass horn (Orelo/Orelino)
by Bert 
, Sunday, March 03, 2019, 20:09 (1880 days ago) @ RB
Hi RB,
Your BD15 driver can reach very high on-axis, so what is it about the fHM that limits it to 300hz in a horn? I guess it has to do with dispersion, but I thought the driver cone diameter was the limiting factor here..
On a free radiating panel the driver has a relative flat frequency curve where only the highest frequencies radiate on axis, off axis the diameter of the diaphragm comes in play where the highest frequencies are only present on axis, the lower frequencies spread wider and will still play all as loud.
So there is much more total lower frequency energy radiating when you would avarage everything instead of measuring only on axis.
In a horn there is besides added reflections (pushing the frequencies radiating off-axis forward) also an increase in efficiency (some sort of "amplification depending on the type of horn (Hyperbolic, Exponetial, Tractrix...), mouth size, throat size, rear chamber volume and front chamber volume).
Think it as a "boost" in a limited frequency range...
Cheers,
Bert
--
BD-Design - Only the Best!
Complete thread:
- Half-size Orelo VS traditional midbass horn - RB, 2019-03-02, 14:28
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- Half-size Orelo VS traditional midbass horn - Bert, 2019-03-02, 19:48
- Half-size Orelo VS traditional midbass horn - RB, 2019-03-03, 11:24
- Half-size Orelo VS traditional midbass horn - Bert, 2019-03-03, 20:09
- Half-size Orelo VS traditional midbass horn - RB, 2019-03-04, 18:53
- Half-size Orelo VS traditional midbass horn - Bert, 2019-03-04, 21:28
- Half-size Orelo VS traditional midbass horn - RB, 2019-03-04, 18:53
- Half-size Orelo VS traditional midbass horn - Bert, 2019-03-03, 20:09
- Half-size Orelo VS traditional midbass horn - RB, 2019-03-03, 11:24
- Half-size Orelo VS traditional midbass horn - Bert, 2019-03-02, 19:48