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Old 16th October 2012, 11:11 PM   #41
djk is offline djk
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I'm looking at the minima at 28hz and 36hz, that's determined by how long the TH is.

Do you really think it's the driver?
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Old 17th October 2012, 12:23 AM   #42
Djim is offline Djim  Netherlands
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Quote:
Originally Posted by djk View Post
Do you really think it's the driver?
If that is true the driver has a significant modification.
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Old 17th October 2012, 12:53 AM   #43
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Quote:
Originally Posted by djk View Post
I'm looking at the minima at 28hz and 36hz, that's determined by how long the TH is.

Do you really think it's the driver?
I was looking at the minima as well in a simulation, it is easier to see the LF maxima, which was lower for a 15 than an 18.

It seems odd that they would be like 10 Hz apart, rather than about 3 Hz different.
It is probable that the "V" throat stub on the much larger volume 18" changes things rather than the minimal path length difference, as the 18" version would be slightly shorter.

That said, I am more interested in FR than impedance curves, the TH-118 goes lower and louder than the TH-115 in the same size box.
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Old 6th January 2015, 06:51 PM   #44
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What happened to this comparison, I'm a bit confused about this.
´Finding information on the ss15 was quite hard!

I found one comparison of sims and then I found two separate simulations & everything looks completely different:-)

Here's a sim of ss15 with Kappa Pro Lf15-2, not 3015:
http://hornplans.free.fr/simu%20ss15%2015LF2.gif
Tham15 sim is easily found.

If ss15 is +50L it should indeed play deeper or louder.

My friend is about to load two tham15 with fane 15xs.
I want to build a 12xb th, considering a tham12 mod or perhaps doing a "ss12"
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Old 6th January 2015, 07:17 PM   #45
NEO Dan is offline NEO Dan  United States
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Cool, keep us posted.
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