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Steve_B wrote: From an acoustic point of view I can't see much point in the port exiting into the horn. The reason for porting the cabinet is because the horn is too small to be effective at the low frequencies. If the horn is not providing any loading on the drive unit why would it on the sound coming from the port?
jsg mashed wrote:
Disco Stu wrote:
JaKe wrote: How about porting into the throat of the horn at well below cutoff of the horn?
JaKe
Thats sort of the idea, only you cant model it, anyone know what the difference would be of porting the box into the throat rather than porting the boxinto the mouth?
Stu
I've modelled this. It has the advantage that the port outputgoes through the horn and can potentially get amplified by the horn. It has the disadvantage that some of the front-cone output will disappear through the port. Basically the same breaks as a series 6th-order bandpass.
The thing that makes it interesting to me is that the horn segment's path delay applies equally to the port output and driver output, and the latter two should be in-phase for the same reason as they are witha reflex cab.
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Deadbeat wrote: You can't let the drivers share a rear chamber port network thingamabob like in a single.
Less, louder boxes
more mouth area = more acoustic length
/devil'sadvocate
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