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General Car Audio
Predicting pressure inaction pathways and acoustic coupling.
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<blockquote data-quote="ciaonzo" data-source="post: 8565459" data-attributes="member: 607015"><p>At 45Hz you're pretty much dealing with the energy balance in a constant pressure wave expansion or compression process ("pressure is constant throughout the system rule") more than you are the quarterwave theory.</p><p></p><p>1130ft/sec @ 45Hz = 25 foot wavelength (6.3 foot quarter wavelength).</p><p></p><p>Now, if you want to build a friggin' giant horn that results in the entire vehicle space being the mouth of that horn, you might be on to to something. You could just build a slowly unraveling ultra-long horn that ends up being the "wall" of your build. Open it up and show people that you have a single high efficiency 15" running off of 800w, loading a tiny compression chamber. You could teach the young ones.</p></blockquote><p></p>
[QUOTE="ciaonzo, post: 8565459, member: 607015"] At 45Hz you're pretty much dealing with the energy balance in a constant pressure wave expansion or compression process ("pressure is constant throughout the system rule") more than you are the quarterwave theory. 1130ft/sec @ 45Hz = 25 foot wavelength (6.3 foot quarter wavelength). Now, if you want to build a friggin' giant horn that results in the entire vehicle space being the mouth of that horn, you might be on to to something. You could just build a slowly unraveling ultra-long horn that ends up being the "wall" of your build. Open it up and show people that you have a single high efficiency 15" running off of 800w, loading a tiny compression chamber. You could teach the young ones. [/QUOTE]
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Predicting pressure inaction pathways and acoustic coupling.
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