S1 to S5 are used to describe the horn flare. S1 is the beginning and S5 is the mouth. Each segment's length is right there in the input screenshot, as well as each segment marker's cross sectional area. You could look at the lengths and figure out where S2, S3 and S4 are in the sim, and also do a bit of math to see if the cross sectional areas and lengths are as accurate as they could be.
There are a few good Hornresp tutorials, you should search for them and read through them.
Well, ... that's not even close.
L12 is only 0.1 cm in the sim (there's a good reason why he did it like that) and your picture doesn't even have an S5. Did you even look at the Hornresp inputs when you made that picture? All lengths are defined by both ends of the segment, there is no L1 and L2, it's L12 and L23.
You really need to read a Hornresp tutorial, this stuff is the basics.
L12 is only 0.1 cm in the sim (there's a good reason why he did it like that) and your picture doesn't even have an S5. Did you even look at the Hornresp inputs when you made that picture? All lengths are defined by both ends of the segment, there is no L1 and L2, it's L12 and L23.
You really need to read a Hornresp tutorial, this stuff is the basics.
Ok what i meant by L1 and L2 is axial length of segments, it should have been L12,L23,L34,L45, and what is the reason of L12 only 0.1, and it is showing negative flare, is that necessary for TH.
It's the only way to get the throat chamber at the very beginning of the horn flare since it taps in at S2.
Not necessary for TH, and in this case it really doesn't make any difference anyway since it's only a .1 cm segment.
Changing it into a real tapped horn and picking up (over) 10dB at 50hz (although the box is deeper).
Would you rather have the big peak at 45~55z, or 160hz?
Would you rather have the big peak at 45~55z, or 160hz?
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I've done a similar modification but I deciding to keep the 101 db sensitivity but extend passband to 40hz ;p.
It's all a trade-off. The above AkAbak design was to have a bump for dance music (which has its peak output near 50hz or so).
I would not consider using a stock T18, too limited of a bass response.
I would not consider using a stock T18, too limited of a bass response.
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ok, and finally tell if the above given pic for s1-s2 would be 0.1, and remaining as i have shown in the pic ??
Djk... the dance music I play definitely doesn't have a bump at 50. More like 35-45, thus MY choice in compromise.
In the sim the last segment is 22 cm. So the mouth is S5, 22 cm back from the mouth is S4 and the distance between then is L45. You can continue to evaluate each segment like that. The next segment marker is S3, it's 36.4 cm back from S4 and the distance between then is S34.
If you can't tell what the sim means you need to read a Hornresp tutorial. There are at least a couple of good ones, but even a mediocre tutorial will tell you how to do this since this is very basic.
This is the 3rd time I've suggested that you look for a tutorial. If you have already done that and there's a good reason that you are unable to learn the basics send me a pm and let me know why and I will help you. Otherwise, stop being lazy and find a tutorial.
After whole day long on tutorials of hornresp and TH, now gotta hold on dat. Thanks to everybody who replied to my queries.
Posting sim of T18 cabs with orig Dl18mt x 8 response with 400w/each.
Posting sim of T18 cabs with orig Dl18mt x 8 response with 400w/each.
While searching came across this design it is winner of Celestion cabinet design competition 2014.. any comments on the design..???
http://marc34.o.free.fr/celestion/cf1840jd.pdf
http://marc34.o.free.fr/celestion/cf1840jd.pdf
While searching came across this design it is winner of Celestion cabinet design competition 2014.. any comments on the design..???
http://marc34.o.free.fr/celestion/cf1840jd.pdf
http://marc34.o.free.fr/celestion/cf1840jd.pdf
That website has been online for 4 years. The owner of that website basically just "submitted" it to the contest and won.
It's a reflex box with a short horn, which mostly adds spl above the passband of a subwoofer.
It's a reflex box with a short horn, which mostly adds spl above the passband of a subwoofer.
Never heard the CF1840jd, but from what I know, it's a redesign of MTB-246 for the Celestion speaker. I've heard MTB-246 a few times in Belgium and France, it sounds loud and clean. Very good design, simple to build, and appreciated here in Europe.