Originally Posted by Ivan Beaver
What you are missing is that 35Hz IS high in freq-if you are talking about going down to 5Hz.
It is not so much the actual freq-but the relation of that freq to the low freq.
The tapped horn only works over a limited range.
You are talking just over a 3 Octave range-pretty wide.
Just because a driver may be good in a ported or sealed alignment does not make it necessarily good for a tapped horn.
It takes the proper driver-along with a proper design-to make a properly working cabinet.
Sometimes a "less performing" driver will actually work better than a premium driver.
What's up Ivan! Thank you and your company for spending as much time as you do on the forums learning us DIYers... lol... it's in valuable.
OK, let me cut to the chase. I'm not really after 5Hz. 10Hz is plenty for me. Ya got me, so let me explain. People just don't get it when I say I'm not concerned with 35Hz on up. It is it's own argument. So I knew to drop it down for passband, believe me or not. Anything above 35Hz is icing.
I know one of the neat things about tapped is they only require "moderate" woofers with small power. I know this. I've seen the many many "well, will a Tempest-X work?" questions and I know high Xmax isn't so helpful. But, with 384 cubic feet wouldn't that allow for larger line area? Am I correct in that the only reason high excursion is a waste is because it overloads the line...so if we are willing to sacrifice so much more space and give the line more Sd, can't I then make use of a larger Xmax larger Sd driver? Or no... if not, you're the guy to ask :-D
And I know it's not just Xmax and Sd, it's all the Thiele... I got it man... but would any of you savy HR guys be willing to plug in an MX 21 quick and give me a rough guess?