‘tH’ is just a false idea that reinforces the real idea. I dont ever understand why or how that doesnt or does make sense? in a sim it should become obvious? But it never does because nobody is thinking and simming what they think. Instead they just sim a slider that lands on a nice looking response curve resukt found and that barely means anything, especially that know body seems to be thinking or has in a long time??? Harry Olson long or longer? Martin king provided some definite ways to dilute things and get a result. A very nice one as well, just chamge the spring rate to a progressive one or sloped rate.... While neglecting to mention the ones he agreed with regardless (pipes are springs that work on parts of a fundamental spring and even damp themselves if organized within a pipe system suited to itself on either end of approach. and was too busy proving that he diluted the already proven he wasn't trying to disprove of even mentions much if at all.
The entire structure of a vent and a pipe is the only thing we are successfully doing. Horn is not a horn or even will be until we accept that its huge or its the waveguide on a tweeter? A horn is not a pipe and pipe physics are easy and simple and exist in everything in every way if you choose to try and look.
I have no clue why this is so simple, yet it is so very hard. The one way that it is crystal clear is also not at all perfect unless you make it. Paraflex is argue ably the mist profound way to look and see a pipe system and what will function if you really apply the ideas of pipe physics to speakers. Aif anyone doesmt look and doesnt make saw dust its a shame. Because its not that paraflex is anything or would be. Its what you gotta figure that makes paraflex so much mire than anything we mete mortals can use to have an ‘oh sh!t!) moment with our own curiously exploring experiments or questions when searching for how do things work’??
It might look like a lot of things, but make it what it is and youll see what i mean. I promise you it is not anything but it is anything you wanna create of you assume its a bundle of pipes that any pipe system would somehow do and does!!? Its not for anyone to judge or explain. It is for anyone to look and see. The problem with that is not pipe physics. Its the person who will or wont look throughout the pipes and use pipe physics!! The damn thing is real. And im nobody and i dont know nothing compared to most people around these places lwhos names we all recognize (GM is of course one of those names and continues to be. Hopefully never ever getting bored or loosing motivarion to do so) but paraflex could sure use a bit of GM polish or GM ideas to which a person could make a polishing compound for a pipe that takes out the swirls and leaves just a series of steps of perfect polished pipes joined from both sides of a tranducers cone.,, Silly horn thoughts are pipe dreams come true. Just ise pipe thought and it seems to be real? I promise, but im just a pipe smoking 4 strokin dork who tripped and fell into a broken leg or two and woke up in a speaker place where i could still goof around and create fun for myselfi think i foonfmd too much of a good thing, and a lot of them seem to exploit a common idea? Hint hint, wink, wink. Thats all i got, and i got nothing but other peoles ideas to claim or suggest that work, or that i learned from. If learning is fun, then paraflex and GM are a combo i recommend. If you research either (paraflex is a person btw) and put that info together youll see more than anyone who doesnt and if you dont not their fault, its because your not adding youre own ideas to the mix and thats when it all becomes amazing
If you take your idea. Study paraflex and look at many many things GM posts or links. Stick that in a book of basic air column(pipe phase physics included from any action or science of energy in
waves etc... you will see what you want to see and what your idea was surrounding. Its ironic that this type of stuff is a result of free will. Paraflex is based of a community of people who were previusly not bound by a dollar or an opinion of whats needed. And like GM the motivation was only to share and not to insist on anything except sharing in a community of common goals to which a real One might be found. Its not perfect, it never will be(?) i can make it perfect on a screen. but it makes it obvious what ‘perfect’ needs to be if you wanna see why its so very hard and yet strangely obvious. You cannot make perfect but you can surely exploit perfectly aimed intended things in no better way than one thatll shout it either good or bad or ugly! Its relentlessly honest. Use it or abuse it its fun!
TH for Tapped Horn seems fake, agree, but TH for Tapered Horn should make a bit sense, imo...
Harry Olson made a conceptual revolution, agree...
I haven't heard of a Martin King other than Matin "Luther" King, pardon...
A true low-frequency horn should be 20-30 feet direct-radiating long, but we're desperate to disbelieve it, totally agree...
Yes, (folded) horns are silly thoughts of pipe hauntings, agree...
Sorry, but I'd never make "sawdust" because I'm not a subwoofer maker though my friend is who can't communicate in English...
Sorry, but since I'm a software engineer in profession neither "pipes" nor "physics" has ever related to the field I'm working on...
Yes, I'm looking at and seeing the science behind the subwoofer for years, it's my passion, but I'm not hoping to dig deep because the only maths I know is Boolean Algebra...
I think it's my misery that your "hinting & winking" leave me inside of a philosophical labyrinth, so I'd rather like if you explicitly tell me what I should do...
I don't believe you're "nobody", but humble (by your replies) somebody who really can help me, disagree...
Yes, I've almost studied every type of enclosure including the emphasized-here PARAFLEX, and I'm not obsessed to a certain type (if you think so), knowing every type has identical pros & cons wrt Hoffman's Iron Law, I'm just seeking for something that'd bring me ~ 20hz, that's all...
And if this forum-renowned GM can bring me that in a PARAFLEX I'd be glad, now call me a lunatic, but I can't give up drawing, so here's my proposal of the PARAFLEX to our GM...
I'll tell you something btw, you're one-of-a-kind writer, all of your replies are "hinting & winking" that...
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OK, basic 1/4 WL pipe cannon with both pipes = Sd/2 for nominally flat response and for increasing upper BW gain increase the 1/4 WL stub in multiples of desired gain, i.e. Sd x 2, 4, 8, etc., though 4x is normally enough to blend in corners.
12TBX100
42 Hz/2 = 21 Hz Fp
34400/4/21 = 409.5 cm
409.5/4 = 102.38 cm stub
409.5 - 12.38 = 307.12 cm closed pipe
12TBX100
42 Hz/2 = 21 Hz Fp
34400/4/21 = 409.5 cm
409.5/4 = 102.38 cm stub
409.5 - 12.38 = 307.12 cm closed pipe
TH for Tapped Horn seems fake, agree, but TH for Tapered Horn should make a bit sense, imo...
Harry Olson made a conceptual revolution, agree...
I haven't heard of a Martin King other than Matin "Luther" King, pardon...
A true low-frequency horn should be 20-30 feet direct-radiating long, but we're desperate to disbelieve it, totally agree...
Yes, (folded) horns are silly thoughts of pipe hauntings, agree...
Sorry, but I'd never make "sawdust" because I'm not a subwoofer maker though my friend is who can't communicate in English...
Sorry, but since I'm a software engineer in profession neither "pipes" nor "physics" has ever related to the field I'm working on...
Yes, I'm looking at and seeing the science behind the subwoofer for years, it's my passion, but I'm not hoping to dig deep because the only maths I know is Boolean Algebra...
I think it's my misery that your "hinting & winking" leave me inside of a philosophical labyrinth, so I'd rather like if you explicitly tell me what I should do...
I don't believe you're "nobody", but humble (by your replies) somebody who really can help me, disagree...
Yes, I've almost studied every type of enclosure including the emphasized-here PARAFLEX, and I'm not obsessed to a certain type (if you think so), knowing every type has identical pros & cons wrt Hoffman's Iron Law, I'm just seeking for something that'd bring me ~ 20hz, that's all...
And if this forum-renowned GM can bring me that in a PARAFLEX I'd be glad, now call me a lunatic, but I can't give up drawing, so here's my proposal of the PARAFLEX to our GM...
I'll tell you something btw, you're one-of-a-kind writer, all of your replies are "hinting & winking" that...
Looks like a stepped positive flare TH. It could also be modeled with the BP6 series function in HR.
Yeah, after I 'ran the numbers' and did a constant taper, then horn tapered stub since I couldn't remember ATM how to do it in 'old' HR, the result looked familiar, so went searching and except for a bit extra HF gain due to mine having a greater Vb, it otherwise overlays your earlier TTQWT sim!
Thanks mate, finally my design got something worth a try...
BTW, heard yesterday of the only local speaker manufacturer here, was an exciting news for me, and they're making customs as well, so that I can make a speaker to the need of the enclosure (and mine), if you'd specify a few t/s for this design to reach some "infrasonic" we can reverse-engineer.
I think so, but since my design also resembles an RTL nature it might be complicated with the SBP6 function.
Not really.
Vc1 = volume of front TL.
Vc1 = volume of rear TL.
Lc1 = length of front TL.
Lc2 = length of rear TL.
Lo1 = whatever it is to get the driver to the bottom of the HR enclosure.
Lo2 = same as above.
Ap1 = cross section of front TL.
Ap2 = cross section of rear TL.
Lp1 = thickness of wood, 1.905cm = 0.75in.
Lp2 = same as above.
The BP6S model should produce the same output as a stepped TH model.
The only thing missing from all the BP functions in HR are Atc and Vtc (should = Sd x the thickness of wood, where the speaker is mounted).
Vc1 = volume of front TL.
Vc1 = volume of rear TL.
Lc1 = length of front TL.
Lc2 = length of rear TL.
Lo1 = whatever it is to get the driver to the bottom of the HR enclosure.
Lo2 = same as above.
Ap1 = cross section of front TL.
Ap2 = cross section of rear TL.
Lp1 = thickness of wood, 1.905cm = 0.75in.
Lp2 = same as above.
The BP6S model should produce the same output as a stepped TH model.
The only thing missing from all the BP functions in HR are Atc and Vtc (should = Sd x the thickness of wood, where the speaker is mounted).
Yikes those details are a rabbit hole. Skip that hole. Or youll never get out!
Theres no need to explain, or consider anything. Just use one idea and GM can supply it and once you do you till never ever require anything else as it aplies in ways far more and beyond the simple version. It necer runs out of exciting once you know what it is.
0.349 in a pipe thats perfect for anything you create in Nd mode to size it perfect for the drivers ts parameters.
Will be exactly that if you look anywhere else where 0.349 is something you can find to use it. Its not ever gonna be obvious until it is in everything you make or continue to. I cant stop and yet i akready searched and searched for even more and there it is every time. Except its not just a pipe harmoinic. Its not just anything. Once you look youll see just find it in the pipe and build it. Because after that youll see... things in everything. Not just speakers.. but speakers now , here and relevant to this subject as a platform to use anyway you will thereafter
Theres no need to explain, or consider anything. Just use one idea and GM can supply it and once you do you till never ever require anything else as it aplies in ways far more and beyond the simple version. It necer runs out of exciting once you know what it is.
0.349 in a pipe thats perfect for anything you create in Nd mode to size it perfect for the drivers ts parameters.
Will be exactly that if you look anywhere else where 0.349 is something you can find to use it. Its not ever gonna be obvious until it is in everything you make or continue to. I cant stop and yet i akready searched and searched for even more and there it is every time. Except its not just a pipe harmoinic. Its not just anything. Once you look youll see just find it in the pipe and build it. Because after that youll see... things in everything. Not just speakers.. but speakers now , here and relevant to this subject as a platform to use anyway you will thereafter
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I still don't get this my friend, which "idea" you're asking me to "use", and what GM can "supply", I don't get, tell me whether you suggest me to build something GM has built or get GM's help (which I'm trying now) or self-study the Hornresp and build my own or what, my head is spinning now...???
Pipe nodes in pressure and antinodes as well. I dont want to confuse anything but i have always listened to GReg. And it wasnt until i was actually able to take what he has shared(and, btw the list is so long ill be busy for ever or id still be bugging him fir more !!) and put it in a subwoofer, along side one that was the same driver and circumstances... except removed the detail which defined something(a pipe node). Anyone can sim it and they can figure it out. But also you might not really see anything if you arent providing the obvious. Thats all i got because more details are just confusion. Ill add a pic but its quite mediocre if its meaningless.. so it is what it is, the wooden version is no less or more, its intersting to say that. Until its listened to. At some point it matters. Anyone wanna describe it? Go ahead... ill screw it up , i dont know why, but objective and subjective matter suddenly (as pictured).
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I could type 5 pages of objective? Subjective? I dunno, im not even able to begin but maybe a typer can type. Theres a lot to see, and its not stuck in anything in particular. Inckuding TH. Thats an opportunity, but putting a driver at the mouth is quite frankly good. But not the only good.. Im in a garage/shop, come on over, but bring these guys too.. we will quickly figure it all out. greg is there to guide us and suggest a certain course to which we will add any thing that might spice it up or deviate a bit incase it sparks his curiousity and i know a few things he might add anyhow.. its a win win, i not only listened (read) everything he told me, i used it and applied it. Its not as easy as it only is in the first (second actually) harmoinc of the full wave we use 1/4 of (90 degrees is a thing here to consider look and notice because once you do youre in the club. It matters in everything thereafte)...
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Who should I listen to then...?
What "obvious" should I provide now...?
What's this "objective/subjective" story...?
Okay, I opened this thread to simply get that P6BP modelled by someone, but then got more interested in QW things and just wanted to have any QW fits my 20hz need, so drew one myself too if it'd help anyone in modelling (otherwise leave it), that's all I can do, and I'm in a hurry to start the project, but with no source how can I...?
Now, while your replies are quite entertaining to read, if you're telling me to model whatever on my own please tell it in some understandable way, so that I'll close this thread and start a course in "acoustics" (would be a bit challenging with my job though)...
BTW, who's this GREG you're talking about, is that @GregKramer...?
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Me, though don't feel bad, I don't follow much of what he posts either, just like his 'hands on' DIY enthusiasm that parallels mine back in the '50s-'70s, especially since I haven't kept up with the 'explosion' of paraflex alignments since HR's incredible expansion of options that's 'left me in dust'. Really makes me feel my age.
I wont clog up your thread, i just wanted emphasize/legitimize, ‘follow the GM’ he still stinks like a motovated guy covered in saw dust and glue (still)!
That said, whatever he says will make a foundation for you soon. Doesnt matter what it is, it just means he did and so his efforts go forward, and dont stop when ever he decides his had enough soundwaves and harmonic parts of them and pressure nodes.
Just for fun, Heres a pic of the greatest story never/ever told by a paraflex sim mode in horn response which isnt a paraflex... it just helps size things to understand why theres more on this pipe then anyone sees. Theres folding and since that matters might as well call it what it is. 4 pipes. each with a purpose and an exact reason the qw is no longer just a quarter of the full wave. Anything more and im pushing this driver out of its area of comfort(ultimax18 at below 12 hz once stuffed and tweeked at exit, and somehow i need a lower HP filter as mine is only willing to go to 18 hz and its too agreesive? After all i wont sh!t my pants until i find 7.2 is a great many things to anything? Even a thermal nuetron cause GI damage but thats another harmonic from uranium235/238. This stuff is weird!!! But maybe an LRAD diarehea fart maker is what i was born to do lol!!!
he still stinks like a motovated guy covered in saw dust and glue (still)!That said, whatever he says will make a foundation for you soon. Doesnt matter what it is, it just means he did and so his efforts go forward, and dont stop when ever he decides his had enough soundwaves and harmonic parts of them and pressure nodes.
Just for fun, Heres a pic of the greatest story never/ever told by a paraflex sim mode in horn response which isnt a paraflex... it just helps size things to understand why theres more on this pipe then anyone sees. Theres folding and since that matters might as well call it what it is. 4 pipes. each with a purpose and an exact reason the qw is no longer just a quarter of the full wave. Anything more and im pushing this driver out of its area of comfort(ultimax18 at below 12 hz once stuffed and tweeked at exit, and somehow i need a lower HP filter as mine is only willing to go to 18 hz and its too agreesive? After all i wont sh!t my pants until i find 7.2 is a great many things to anything? Even a thermal nuetron cause GI damage but thats another harmonic from uranium235/238. This stuff is weird!!! But maybe an LRAD diarehea fart maker is what i was born to do lol!!!
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Please elaborate because all pipes/cones have a 1/4 WL fundamental regardless of type: Resonances of open air columns
No, being honest with you, everytime I read his replies it feels like I'm bothering y'all in vain for my need, I'm sorry if y'all feel the same...Me, though don't feel bad, I don't follow much of what he posts either, just like his 'hands on' DIY enthusiasm that parallels mine back in the '50s-'70s, especially since I haven't kept up with the 'explosion' of paraflex alignments since HR's incredible expansion of options that's 'left me in dust'. Really makes me feel my age.
I actually was to ask this, saw in some of your replies you're talking about '50s/'60s/'70s, you're that old (just asking cos I seriously thought you're still in your 20s or 30s)?
BTW, have you seen my last reply, if not, I found the only driver maker in our country, so I need you to recommend a nice driver (or some critical t/s needs) for PARAFLEX, so that he can make accordingly, could you please?
You don't wanna, cos I've almost realized GM's capacity in "diyAudio" at least...I wont clog up your thread, i just wanted emphasize/legitimize, ‘follow the GM’
That said, whatever he says will make a foundation for you soon. Doesnt matter what it is, it just means he did and so his efforts go forward, and dont stop when ever he decides his had enough soundwaves and harmonic parts of them and pressure nodes.
Despite being a bit surprised of what you said about QW, I still love the writings, and just asking, what's your job/business, I really don't know whether y'all are professional speaker men or doing that in your spare-time as a hobby...?
WHAt did i say about qw? Or how can i elaborate? Draw? Type?? Eek... i think theres already an issue with typing. And i hate how hard it is.. theres a facebook group where you can spitball for days and dont have to worry, were all rookies there. Meanwhile im tryimg to come up with a series of drawing and stuff from the books of harry olson and others to help say what i cant ‘type’ or describe inless a video ? Lol?
Im not trying to sound retarded. Lol!! It comes naturally,.
But Seriously I do think ill have somethng to share/show at some point. Harry olsons got endless material to use for examples. Jut gotta but it together in a ay that overlaps a lot more.
Im not trying to sound retarded. Lol!! It comes naturally,
. But Seriously I do think ill have somethng to share/show at some point. Harry olsons got endless material to use for examples. Jut gotta but it together in a ay that overlaps a lot more.
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