Tapped Horn Sub Using Low VAS drivers - diyAudio
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Old 4th November 2014, 06:32 PM   #1
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Join Date: Dec 2008
Default Tapped Horn Sub Using Low VAS drivers

I have the chance to pick up some sub drivers from these listed in the attached spec sheet. I have been considering building some Tapped horns to cover upto 100Hz in my front horn based active system.

I have looked at the Lab12 TH in the past but had concluded it was too big for the space i have in my corners, so was wondering if using a 10" driver allow a cabinet that acceptable.
The horn can have a line upto 4 m long and a mouth of around 800cm2 max.
I have tried simulating with Hornresp without any success an expanding and contracting line, not being able to get a flat response that goes below 35 Hz. What am i doing wrong or is it that a driver with stiff suspension (low VAS) isn't suitable?
See attached one of my poor attempts.

I am also not sure if the spec sheet values are 100% accurate as when i determine values for mmd for example on different coil configurations i get opposing trends form the publised data.
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Old 4th November 2014, 07:13 PM   #2
sine143 is offline sine143  United States
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Join Date: May 2010
nothing attached.

Low vas is generally a positive thing.

post t/s specs of desired driver.
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Old 4th November 2014, 07:21 PM   #3
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Join Date: Dec 2008
this is a mispost see earlier post with attachments

how do i delete this mispost?
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