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<blockquote data-quote="Ivan Beaver" data-source="post: 49491" data-attributes="member: 30">Re: Need subs that will do 20hz-40hzFrom the little I can tell from the photo of the Ramsdell, I seriously doubt it is a tapped horn.&nbsp; A tapped horn requires a bit of horn to be bale to work-and it does not appear as if there is a horn inside-among other things.My guess it that it is pretty much a regular ported cabinet-with the driver mounted backwards-works the same way.The Patent office is taking their own sweet time.&nbsp; Part of the problem is that you have fairly non technical people dealing iwth technical issues.&nbsp; There have been a few &quot;objections&quot; that have come up-but they have been delt with.There is noting that can be done until the patent is actually issued.&nbsp; But the patent office gives lots of weight to people who have been manufacturing and advertising a particular&nbsp; &quot;technology&quot;-when it comes to arguments.So we are just waiting.I won&#039;t give any details, but let&#039;s say there are some companies that are &quot;in our sights&quot;-when it is time to pull the trigger.</blockquote>

[QUOTE="Ivan Beaver, post: 49491, member: 30"] Re: Need subs that will do 20hz-40hz From the little I can tell from the photo of the Ramsdell, I seriously doubt it is a tapped horn. A tapped horn requires a bit of horn to be bale to work-and it does not appear as if there is a horn inside-among other things. My guess it that it is pretty much a regular ported cabinet-with the driver mounted backwards-works the same way. The Patent office is taking their own sweet time. Part of the problem is that you have fairly non technical people dealing iwth technical issues. There have been a few "objections" that have come up-but they have been delt with. There is noting that can be done until the patent is actually issued. But the patent office gives lots of weight to people who have been manufacturing and advertising a particular "technology"-when it comes to arguments. So we are just waiting. I won't give any details, but let's say there are some companies that are "in our sights"-when it is time to pull the trigger. [/QUOTE]

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