if the BR was single, cant compare to a th18, a double 18 BR is the one that can win in lower extension, depending what cab is it.
but overall the horns are more efficient so you need less power to reach the same spl as a BR.
hey so can i calculate a bandpass flat to 30hz dont matter if it reach only 100 or 90 otin even 80 at the top , to me is most important hit lower than a wide response.
Sure you can. Check out some of the Devastators on avsforum.com. RedFive has designed some hifi BP6P's that are flat from 30-100hz. I think some might be flat to 20-25hz.
Nice, but I think the Minifold-MTH design has more potential because it can have flared horns and maybe no access panel compared to the Devastator that has straight one and access panel. Take a look. It's also a BP6P.
https://www.diyaudio.com/community/...-better-than-tapped-horn.391782/#post-7166448
Hey Man,
your sub recipe calulator wbesite just rocks !! i still canot digest totaly the ins and outs of hornresp and the integration with your cad software and probably never do, but the fact that you have almost all of the different design types is mind bending !, i will start to play with it and try to replicate existing publushed works here, then do my own tweaking.
i bet you invested a lot of man hours assembling and coding all the spreadsheets for the subs.
in the hands of a skilled hornresp operator your premade formulas will let them to coax out some designs real quick.
Thanks for sharing all your works with the community
Best.
Max.
Welcome, I'm happy you like it. Play around until you became comfortable. Slowly you will achieve your targets.If needed, create a Master table to guide you in the process, so, you can see the effect by changing single dimension or grouped one.
I'm currently working to fix some small issues and to implement additional improvements, I hope others will like it too.
I'm currently working to fix some small issues and to implement additional improvements, I hope others will like it too.
I usually model these things in 2-3 or in some cases 4 different ways, for me it is a way to verify that the results are somewhat realistic.
Nothing new, just playing it safe.
I like your dedication and commitment to spread the word, like @freddi for Karlson designs, you are indeed mr. Bandpass.
No, that would be Nelson Pass, he is an advocate for particular amplifier topologies.
https://en.m.wikipedia.org/wiki/Nelson_Pass
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Yes, and for sure you know very well what you are doing, but modeling as OD you can see the influence of driver placement in the box while in the Nd you can't, also, modeling as OD you improve accuracy for the rear chamber port due to design decision while modeling as Nd there is port correction and the results might be different. Decisions in the design process improves accuracy and optimization and I still don't understand why he is postponing to learning hornresp just in the future. If I were him, I would start making more questions in order to slowly learning about hornresp e getting confidence before build anything.
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I agree, Hornresp is super easy.
Just punch in some numbers, it's only whatever dimensions you want in combination with fixed numbers from whatever driver you want to use.
Just punch in some numbers, it's only whatever dimensions you want in combination with fixed numbers from whatever driver you want to use.
That depends a bit on how you plan to make the port in relation to the driver, but typically I'm looking for worst case resonances.
Try reading this thread at HTS and see if that helps a bit.
https://www.hometheatershack.com/threads/hornresp-for-dum-hmm-everyone.36532/
Do a few different calculations with some drivers you think are interesting, you will get the hang of it soon.
There are a lot of different guides for you to try all sorts of different designs, TH, a myriad of different vented designs, bandpass, even double bass reflex, horns, you name it.
In a week or two some newbie comes along and you can be all: "Hornresp is super easy, just try it."
https://www.hometheatershack.com/threads/hornresp-for-dum-hmm-everyone.36532/
Do a few different calculations with some drivers you think are interesting, you will get the hang of it soon.
There are a lot of different guides for you to try all sorts of different designs, TH, a myriad of different vented designs, bandpass, even double bass reflex, horns, you name it.
In a week or two some newbie comes along and you can be all: "Hornresp is super easy, just try it."
Thanks guy!
HR definitely gives you multiple options of modeling an enclosure multiple ways. Somewhere in the Hornresp thread, I've shown how it's done on multiple occasions.
Example, a straight flare tapped horn can be modeled with the TH, Stepped TH, or any of the BP6S functions.
how i can simulate this ports
the design is on you tube it is for dual 15's
the thing is the guy says , use any 15 with big xmax
i think that is missleading as every box is adjusted to a certain driver not one designs fits all , right ?
also
there is dual BR boxes that are basically 2 single chamber ones melted together
but this design share the chamber with the 2 drivers
is there an advantage to it ?
but 1st i want to know how those triangle vent ports are calculated
the design is on you tube it is for dual 15's
the thing is the guy says , use any 15 with big xmax
i think that is missleading as every box is adjusted to a certain driver not one designs fits all , right ?
also
there is dual BR boxes that are basically 2 single chamber ones melted together
but this design share the chamber with the 2 drivers
is there an advantage to it ?
but 1st i want to know how those triangle vent ports are calculated
Maybe it's better to model the port using a kind of segment that hornresp does't use port correction. Check the example in the link below. In your case you can use just the segment H1 where S1 and S2 will be the triangle area (sum both triangles) plus the length to achieve the tuning frequency you need.
https://freeloudspeakerplan.rf.gd/pages/moderndualvb1.htm
If you model using rear chamber port, them you need to follow Kaffimann indication.
maxolini,
One more comment, as highlighted previously, the simulation KaffiMann made for you represents a different Bass Reflex Design compared to what you are going to build, he used Offset Drive witch take into account the driver position in the frequency response, see the link below a similar design (double driver is just about use two side by side placed at S2 position). If you are using that simulation as target and you are doing a new simulation more aligned with your current design, ok, you are doing the right thing.
https://freeloudspeakerplan.rf.gd/pages/vbslot1-b.htm
One more comment, as highlighted previously, the simulation KaffiMann made for you represents a different Bass Reflex Design compared to what you are going to build, he used Offset Drive witch take into account the driver position in the frequency response, see the link below a similar design (double driver is just about use two side by side placed at S2 position). If you are using that simulation as target and you are doing a new simulation more aligned with your current design, ok, you are doing the right thing.
https://freeloudspeakerplan.rf.gd/pages/vbslot1-b.htm