Which is more common in floorstanding designs. Simplified: The longest internal distance produce the strongest modes.
Yes and no. Of the modes produced between parallel surfaces, the fundamental is stronger than the harmonics. But that applies however long (or short) the distance is between those surfaces. Typically, when we stretch one dimension relative to the others, in a quality design we are deliberately incorporating it into the alignment. The lateral modes, being of relatively shorter wavelength, are of little real significance since they are easily dealt with by relatively minor amounts of damping. Most ML quarter-waves (MLTLs) I & some others like GM do are simply lagged on opposing, or occasionally on all internal surfaces depending on the material used & that is all that's required. If the longitudinal is not incorporated into the alignment, the design is usually somewhat less acoustically efficient, at least in terms of general functionality, as it usually requires more work elsewhere.
Because:
Bass = space
IE to make a design that is more efficient for low frequencies you need more box volume, with increased box volume comes increased distance between internal surfaces, which again cause the internal resonance to shift lower and at a stronger amplitude.
Well, it certainly true that for a given tuning & driver a larger Vb has the greater acoustic efficiency, but it's introducing an additional variable (efficiency) which was not present before, so we need to be careful about generalising from that & any other changes made. Bass itself however does not require volume, if you are willing to sacrifice efficiency. Novak, Thiele & finally Small are the prime examples of that, with the latter in particular ultimately allowing the squeezing of 'the most extension from the least volume' -that was in part his objective.
No doubt, but you didn't mention it, or the inherent issue that cubes have with symmetric parallel faces (& spheres with their equivalent) that the concentrated eigenmodes can and do become extremely powerful at their fundamental. Since those cannot be ignored any more than any others, I felt it should be noted lest it lands someone in difficulties. 😉I very much agree that any and all designs have their modes and resonances that need to be adressed.
My statement regarding cubes vs spheres stands, I was knowingly avoiding the topic of bracing and breaking up the internal structure because those points are equally valid for any form or design.
We are currently discussing this topic in the Fullrange section, and I personally prefer to have a bigger volume for the bass that does not negatively impact performance in that region, offloading the lower frequencies have benefits for a driver with limited xmax and power handling as you know, and at the same time having a fullrange driver in a smaller volume more optimalized towards reduced internal reflections makes a lot of sense to me, because with a smaller volume with shorter distance between parallel surfaces you shift the modes correspondingly higher up, and they are also weaker in amplitude given the same materials making them both easier to deal with and less pronounced.
As noted, they are not necessarily weaker in amplitude (which in practice can be a question of context / degree), however, shorter wavelengths are are more readily absorbed by a given amount of damping material, so can be easier to work with. As noted, that comes with caveats though, especially when cubes & spheres are introduced given the equidistant nature of multiple internal faces, or one (almost 😉 ) continuous internal surface.
As in the field coil under discussion? A good driver I'm sure, but I doubt it could achieve any of that.However, it would be absolutely amazing to have this driver in my hands and make a big box that would be able to play every single frequency from about 25hz (would definitely use a high pass for this particular driver) up to above my limit of hearing. That would be absolutely incredible. Truly a fullrange driver.
Did you not see my sim? Nice roll off but decent output to 25Hz. Only for low power though (severely xmax limited).As in the field coil under discussion? A good driver I'm sure, but I doubt it could achieve any of that.
It's not an absolute rule ofcourse (there are no absolutes), but yes, per a given SPL they usually are.they are not necessarily weaker in amplitude
Here's a picture of two completely identical sims in terms of volume and tuning frequency, one is a cube, the other is a tower.
I have experienced this firsthand after making sawdust, it's like a ringing originating at lowest resonance, absolutely horrible if you have a midbass or fullrange driver, not a big problem for a sub (provided you use steep crossovers to deal with it...).
If you halve the width because you want a slimmer design, but you still need the same volume, you end up with: Less than ideal starting point for bracing and breaking internal modes.
If you have double mid/bass in a 2.5 way and want to make a tower, make two separate volumes inside to break it up properly, much easier than going absolutely nuts on dampening and bracing, and more effective.
Yes, as an alignment it's tuned a bit too low for my taste, and as I recall (although speaking under correction, which I'd be glad of -I have it loaded but haven't used for a while) Hornrsp accounts for longitudinal but not lateral modes.Did you not see my sim? Nice roll off but decent output to 25Hz. Only for low power though (severely xmax limited).
Except you're not accounting for context.It's not an absolute rule ofcourse (there are no absolutes), but yes, per a given SPL they usually are.
Here's a picture of two completely identical sims in terms of volume and tuning frequency, one is a cube, the other is a tower.
I have experienced this firsthand after making sawdust, it's like a ringing originating at lowest resonance, absolutely horrible if you have a midbass or fullrange driver, not a big problem for a sub (provided you use steep crossovers to deal with it...).
If you halve the width because you want a slimmer design, but you still need the same volume, you end up with: Less than ideal starting point for bracing and breaking internal modes.
Without meaning any disrespect (not my way) that sounds a fairly typical tale of poor design & implementation, & design & implementation is one of the things I've been meaning to when I mention context. How did you design it? How did you determine and optimise the cabinet length, driver position, vent position, Fb and internal damping? Because what you are describing are the characteristics of a box which was not properly designed and optimised -the sort of box where somebody takes a Vb (often obtained from Helmholtz tuning calculations), and simply makes a tower without any consideration for its proportions, driver & vent position, correct damping, or making any adjustments (when necessary) to the vent dimensions. Unfortunately, in many instances, people run into exactly these problems for those reasons, largely because they either forgot or were not aware that they were working with a quarter-wave (or partial quarter-wave) enclosure rather than a Helmholtz.
For e.g, the attached. I don't much like trying to squeeze maximum extension out of drive units, as the compromises usually aren't worth the nominal gains, so this is the Sonido field-coil under question here, with 0.5ohm series R incorporated for conservative wire loop & connection resistance, in a Vb = Vas, Fb = Fs MLTL, with light lagging on the internal walls. Power handling is a little down from an optimum (which would be about 30% less volume, at the price of a bit less extension & potentially minor peaking ~an octave above Fb / Fp, which applies whether it's a quarter-wave variation or a Helmholtz), but is a reasonable compromise in the circumstances. Note deflection is RMS so multiply x 1.44 from the graph; it remains within rated Xmax (driver rating method used unknown) under nominal 1w drive level. I'm not seeing catastrophic ringing, resonances or anything else. For reference the box is 56in tall / long, internally. It's certainly not perfect & I don't pretend it is -I've only had a few minutes, but it's reasonable for what it is, in current form.
Edit: I won't provide dimensions beyond the above as Sonido do not appear to like 3rd parties designing enclosures for their drive units, and I've no wish to cause them offense.
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Just thought it was funny. 3 minutes to plonk in the numbers, not serious at all.as an alignment it's tuned a bit too low for my taste
Wish I had the time to read your replies and reply properly, just been skimming through and not been able to take my time with it as I would like to. No time...
Hello, wanted to send you a PM because I don't want to argue with you because I think we're both agreeing on the same things, but you're not allowing for PM's so...
Seems to me there's "a red thread" going through here where I may be saying something while still allowing for circumstances, and you are stating the obvious or expanding the details I do not have the time to write down explicitly. Which is fine, but I think it's not the best way to have a discussion. Sometimes I get the impression you're willing yourself to see most glasses as half-full, so to speak.
I wont go over everything here either, because it's a wasteful use of time for both of us as I am sure we agree on most things really, perhaps except the use of time.
And it doesn't have to be a cube, it's really difficult to make a perfect cube, it was just mentioned as an example. Ofcourse parallel surfaces are bad, you're preaching to the Choir. Let's say one box is 55cm tall and 45 cm wide and another box is 90 cm tall and 25 cm wide, if internal volume is equal, most people would still consider the former close to a cube and defining the latter as a tower structure.
I try to be careful not to make absolute statements, quite often simplifying but still allowing for the finer minuteae.
The only thing I can state with absolute certainty is that: It's all a compromise.
Allow me push your point further, only in less words: Yes and no, it is entirely possible to make an absolutely unsuitable enclosure design useable if you only compensate enough for it, but that would require a significant amount of effort and probably not the best way to spend time, tools and materials.
Best regards
Kent
😅
Seems to me there's "a red thread" going through here where I may be saying something while still allowing for circumstances, and you are stating the obvious or expanding the details I do not have the time to write down explicitly. Which is fine, but I think it's not the best way to have a discussion. Sometimes I get the impression you're willing yourself to see most glasses as half-full, so to speak.
I wont go over everything here either, because it's a wasteful use of time for both of us as I am sure we agree on most things really, perhaps except the use of time.
And that's the exact reason I was merely mentioning shapes other than classic tower structure to begin with. You shift the resonance higher because you reduce the longest distance inside the box. Ergo the lowest mode is easier to deal with. Not saying it's magic, I never did.however, shorter wavelengths are are more readily absorbed by a given amount of damping material, so can be easier to work with.
And it doesn't have to be a cube, it's really difficult to make a perfect cube, it was just mentioned as an example. Ofcourse parallel surfaces are bad, you're preaching to the Choir. Let's say one box is 55cm tall and 45 cm wide and another box is 90 cm tall and 25 cm wide, if internal volume is equal, most people would still consider the former close to a cube and defining the latter as a tower structure.
Oh, yeah, right... This being a thread about a very limited xmax (1,8mm) field coil fullrange driver in a probably 100-150 liter design. Sorry, I really did not know effiency was not part of the equation. My bad!but it's introducing an additional variable (efficiency) which was not present before
I am allowing for context so I don't have to account for it, because I do not have the time, entire weekend spent in meetings and last week was absolutely insane with work and various other things filling up every day in the evenings. You may be correct in that perhaps I would be better off not spending a few minutes at this forum at random intervals, but if I have a few minutes time that would otherwise be spent in waiting I would rather be doing something that I enjoy. Besides, I thought context up to that point was blatantly obvious.Except you're not accounting for context.It's not an absolute rule ofcourse (there are no absolutes), but yes, per a given SPL they usually are.
I try to be careful not to make absolute statements, quite often simplifying but still allowing for the finer minuteae.
The only thing I can state with absolute certainty is that: It's all a compromise.
Allow me push your point further, only in less words: Yes and no, it is entirely possible to make an absolutely unsuitable enclosure design useable if you only compensate enough for it, but that would require a significant amount of effort and probably not the best way to spend time, tools and materials.
Best regards
Kent

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What on earth was the point of all that? Days after you announce you don't have time to read or write things properly, you decide to write the lengthy above, which still doesn't seem very clear. 😉
OK, rather than trying to go through what points you may be trying to make above (which to be honest seem couched in such a way as to potentially mean a number of things), I'll simply note two things in an entirely friendly spirit. First, the onus is on people to be clear in the first place if they don't want to either confuse others or have flaws in what they actually did put down raised. If they're strapped for time, which is something most of us know all too well, it's usually a good move to avoid anything that may be vague. What some assume is obvious may not be to others. And second, I'm not interested in personal opinions about me, so there is no point expressing them. I say that simply to prevent you wasting your valuable time in future.
OK, rather than trying to go through what points you may be trying to make above (which to be honest seem couched in such a way as to potentially mean a number of things), I'll simply note two things in an entirely friendly spirit. First, the onus is on people to be clear in the first place if they don't want to either confuse others or have flaws in what they actually did put down raised. If they're strapped for time, which is something most of us know all too well, it's usually a good move to avoid anything that may be vague. What some assume is obvious may not be to others. And second, I'm not interested in personal opinions about me, so there is no point expressing them. I say that simply to prevent you wasting your valuable time in future.
It doesn't seem right to compare increasing a cabinet dimension while keeping the same small amount of damping thickness. Make it a fraction of the dimension, then the damping effectiveness goes up along with the wavelength.however, shorter wavelengths are are more readily absorbed by a given amount of damping material, so can be easier to work with.
That's not at all contradictory: Because today I have the time.Days after you announce you don't have time to read or write things properly
And I did try to send you a PM because I did not want to post this in the thread.
It doesn't seem right to compare increasing a cabinet dimension while keeping the same small amount of damping thickness. Make it a fraction of the dimension, then the damping effectiveness goes up along with the wavelength.
Yes, that's what I was saying; assuming you are not working with a QW enclosure (as in one where you're deliberately generating & using standing waves as part of the LF alignment), then greater dimensions, or a recurring dimension, can be problematic as they require either a greater amount of a given damping material to suppress, and / or careful positioning of the material so it's at vmax, the latter usually being harder / less practical to achieve, though technically a more efficient use of material.
Believe it or not, it was intentional. After my 350liter TH experiment I built a smaller horn and a multi-port enclosure (ports on top and side for a theory on room interaction), after those I eventually made a vented design out of scrap OSB for verification purposes. Some things are best experienced in order to truly appreciate what is happening.that sounds a fairly typical tale of poor design & implementation
Edit:
I consider it well worth the limited time and effort, I recommend people to try and experiment if they have the time and opportunity to do so.
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there’s something you can look at in horn response which starts to explain everything and not in a conventional manner or that it’s going to be a miracle right away without taking the time to look hard at it . it’s going to however point out things that no one looks at. All that Martin King did was give us some numbers he’s an engineer he doesn’t know where they come from their math constants. However look at what some of the numbers that we already know actually mean and use radians and, I realize and recognize why that would be so important and so much more accurate and so much more relevant because those are higher orders of circles math, already in spherical trig. Jobs with a 05238 loophole because that’s the speed of light at an angle. Pi /6
in an offset driver transmission line you are required for certain 104.76 cm followed by exactly 195.24 cm in a 300 cm pipe as he asked the driver entry that perfectly isolates the location and first fold in that so that it eliminates the initial void created by the phase 270/90….anomaly at three times the fundamental which itself is already a harmonic of a bigger wave so drawing it is all the stuff or using math will reveal that 300×03492063492 is 104.76.
But 300 is 5.238095238 in radians and 10476 . 300 is 5.238095238 in radians and 10476190476 is 60* makes all of those complete at 6.2857142. 360° or 360 cm if you take all of that and transfer it into a door pipe along with the idea of it and the concept of the driver location for the short side of the qw pipe.
Look at what frequencies are represented it all of those numbers in the space in between them when folded at 90 cm so you have 270 has 3 folds and use 345.6 m/s so that it is easy to see and also it makes exactly connection to the math (no oddball decimal points and all kinds of stuff you’ll never recognize occurs )which allows us to see anything as it’s the function of speed of light or the radius of the sun or 12 seconds in a day it’s very important it’s why nobody ever quite grasps the concept of quite a few things a quarter wave there’s a couple numbers thrown around they don’t pertain to anything in particular their math constant or piece of trigonometry but what they are outside of that that and what they really represent is infinitely more important to check out and see because it leads to understanding all of this stuff it would seem?
nobody’s gonna be able to explain that by typing it but if somebody had a chance to try to go through all that and sift through it I could represent it I’d like to take a shot at cause I have in the last A year or so taking the hardest most complex and closures and breaking up up in the parts to make them simple in the results are astonishing.
But the same numbers go all the way Way back to the other direction with a simple fourth quarter quarter a pipe and a variety of them end up using the same exact numbers., and those are known and used all the time especially in full Range boxes were you got to resolve the voids and spikes to begin with but those are also the location of an advantage a huge advantage.
It’s those things that hold a secret in the higher orders and for subwoofer because unlike the 864 HIt’s those things that hold a secret in the higher orders and for subwoofer because unlike the 86.4 hz That is exposed when you misaligned the 104.76 in the 300 cm pipe it is 864 and every single frequency thereafter at that interval it will disappear. The horn responsible will kick it out as a -990 DB. It’s very strict what you gotta do but as soon as you know it you can find it all over the place in the variety designs that are using the same method and at the same time you can move up and interval to your next speaker design take the entire layout cut it exactly in every proportion down in the length to where you overlap the existing response out of the other and electrical pins though and peek to where you see they’re in perfect sequence and an ongoing scenario in math exists and to verify that it starts at 432 Hz instead of 864.
move in the other direction which is impossible I would never build a subwoofer that low in that big but it does the same thing again in the opposite and it starts at 1728hz.
Devils in the details what it is noDevils in the details Who responds is at 34 4 m/s all those frequencies are missing 4 Hz each as they I’m in that sequence in her isolated at -990 DB all the way to 9780 Hertz.
there are no face anomalies there’s no squiggly goofy looking signs the system with the right CSA has very little if any damping needed.
But it also has incredibly important and unique landmarks in the details of the Which explains why the number three or 30 or 300 was so important because it’s the speed of light that shows up in divisions of the visible numbers that already exist in centimeters to inches conversion that show up in the frequency response and dirt to the 10th of a decimal point you can’Which explains why the number three or 30 or 300 was so important because it’s the speed of light that shows up in divisions of the visible numbers that already exist in centimeters to inches conversion that show up in the frequency response and dirt to the 10th of a decimal point There is no ambiguity about none of this and there’s another sequencer frequencies in the far out of band with as well to tell another tale about this and they ride on a 48 transfer numbers are the same exact thing 249There is no ambiguity about none of this and there’s another sequencer frequencies in the far out of band with as well to tell another tale about this and they ride on a 48 transfer numbers are the same exact thing . 12 and 24 and 48 at 96 and 182 and 384 over and over again is the spacing in the 5/4 or what is actually two of the 3×1/4 harmonic intervals they got filled way down in the past band where this originated at.
It doesn’t make any sense unless you look deeper into it what this all means but what doesn’t make sense is why nobody points out what’s going on in the centimeters already in the 1÷250 versus 1÷254 which is the same thing as can be found in the math at higher orders as the 365.25 days a year instead of 360 or the reason that is 1461 instead of 1440 minutes in a daIt doesn’t make any sense unless you look deeper into it what this all means but what doesn’t make sense is why nobody points out what’s going on in the centimeters already in the 1÷250 versus 1÷254 which is the same thing as can be found in the math at higher orders as the 365.25 days a year instead of 360 or the reason that is 1461 (4x365.25 leap year) instead of 1440 minutes , Whitehorn response represents that as well at 14620 Hz instead of 14400.
that’s all of these things crossing paths the same way 92.99555hz and 92.999555 Cm do and so does 186.624/46.656 and and the opposite all these things are in this opportunity is window of reflection not only in the cabinet but in the exact numbers that are employed and frequencies and spacing between all of this.
There isn’t much to dampen but there’s a heck A lot to see if you look at what happens in byA lot to see if you look at what happens in 1÷254. Remember the centimeter is eight divided by pi and pie divided by eight etc. etc. and things will make more sense instead of not.
I’ll be lucky if what I typed even make sense lol I’m trying to explain it enough to make the connection and not require everybody to make 4I’ll be lucky if what I typed even make sense lol I’m trying to explain it enough to make the connection The only mistake and all this is nobody’s using radiance to describe or understand enclosures at the same time the frequencies at the same time breaking the cabinet down into parts that are not things you wanna get rid of the things you want to emphasize and enforce which ultimately means stay the heck away from advanced centerline mode and flares and tapers. They cannot create something that’s going to reflect back and not cause an issue in any other way the reason that the number 05238 is the fivThey cannot create something that’s going to reflect back and not cause an issue in any other way the reason that the number 05238 is The six sides of a rectangle which has a perimeter of pi as 3.14285742. That’s also the percentage of volume in a sphere going into a cube half the size of that rectangle is displacement 52.38%.’
That also is That also Is the number of drops of water 1000 in a kilogram
swing on a pendulum in exactly 1 second moves 05238 across an arc centered on perpendicular at zero and split the golden ratio exactly in half at 02618 which is exactly twice radians of 013095238 which is 1/4 of the speed of light in a waveform in the math behind all of this which is also used in other areas at even higher frequencies in the medical field and astrophysics defined the parsec, exposes the relationship between 432 and 360, Also five and six which is how far the driver is away from east enalso five and six which is how far the driver is away from each And if you look at it and understand what’s gonna be going on inside their head they look in response and ask yourself how that got canceled out and line sand if you look at it and understand what’s gonna be going on inside their head they look in response and ask yourself how that got canceled out and aligned so perfectly?
it didn’t because nobody ever looks?? But if you do you’ll see what I mean and a lot of this stuff might make sense😂🙏🏻
in an offset driver transmission line you are required for certain 104.76 cm followed by exactly 195.24 cm in a 300 cm pipe as he asked the driver entry that perfectly isolates the location and first fold in that so that it eliminates the initial void created by the phase 270/90….anomaly at three times the fundamental which itself is already a harmonic of a bigger wave so drawing it is all the stuff or using math will reveal that 300×03492063492 is 104.76.
But 300 is 5.238095238 in radians and 10476 . 300 is 5.238095238 in radians and 10476190476 is 60* makes all of those complete at 6.2857142. 360° or 360 cm if you take all of that and transfer it into a door pipe along with the idea of it and the concept of the driver location for the short side of the qw pipe.
Look at what frequencies are represented it all of those numbers in the space in between them when folded at 90 cm so you have 270 has 3 folds and use 345.6 m/s so that it is easy to see and also it makes exactly connection to the math (no oddball decimal points and all kinds of stuff you’ll never recognize occurs )which allows us to see anything as it’s the function of speed of light or the radius of the sun or 12 seconds in a day it’s very important it’s why nobody ever quite grasps the concept of quite a few things a quarter wave there’s a couple numbers thrown around they don’t pertain to anything in particular their math constant or piece of trigonometry but what they are outside of that that and what they really represent is infinitely more important to check out and see because it leads to understanding all of this stuff it would seem?
nobody’s gonna be able to explain that by typing it but if somebody had a chance to try to go through all that and sift through it I could represent it I’d like to take a shot at cause I have in the last A year or so taking the hardest most complex and closures and breaking up up in the parts to make them simple in the results are astonishing.
But the same numbers go all the way Way back to the other direction with a simple fourth quarter quarter a pipe and a variety of them end up using the same exact numbers., and those are known and used all the time especially in full Range boxes were you got to resolve the voids and spikes to begin with but those are also the location of an advantage a huge advantage.
It’s those things that hold a secret in the higher orders and for subwoofer because unlike the 864 HIt’s those things that hold a secret in the higher orders and for subwoofer because unlike the 86.4 hz That is exposed when you misaligned the 104.76 in the 300 cm pipe it is 864 and every single frequency thereafter at that interval it will disappear. The horn responsible will kick it out as a -990 DB. It’s very strict what you gotta do but as soon as you know it you can find it all over the place in the variety designs that are using the same method and at the same time you can move up and interval to your next speaker design take the entire layout cut it exactly in every proportion down in the length to where you overlap the existing response out of the other and electrical pins though and peek to where you see they’re in perfect sequence and an ongoing scenario in math exists and to verify that it starts at 432 Hz instead of 864.
move in the other direction which is impossible I would never build a subwoofer that low in that big but it does the same thing again in the opposite and it starts at 1728hz.
Devils in the details what it is noDevils in the details Who responds is at 34 4 m/s all those frequencies are missing 4 Hz each as they I’m in that sequence in her isolated at -990 DB all the way to 9780 Hertz.
there are no face anomalies there’s no squiggly goofy looking signs the system with the right CSA has very little if any damping needed.
But it also has incredibly important and unique landmarks in the details of the Which explains why the number three or 30 or 300 was so important because it’s the speed of light that shows up in divisions of the visible numbers that already exist in centimeters to inches conversion that show up in the frequency response and dirt to the 10th of a decimal point you can’Which explains why the number three or 30 or 300 was so important because it’s the speed of light that shows up in divisions of the visible numbers that already exist in centimeters to inches conversion that show up in the frequency response and dirt to the 10th of a decimal point There is no ambiguity about none of this and there’s another sequencer frequencies in the far out of band with as well to tell another tale about this and they ride on a 48 transfer numbers are the same exact thing 249There is no ambiguity about none of this and there’s another sequencer frequencies in the far out of band with as well to tell another tale about this and they ride on a 48 transfer numbers are the same exact thing . 12 and 24 and 48 at 96 and 182 and 384 over and over again is the spacing in the 5/4 or what is actually two of the 3×1/4 harmonic intervals they got filled way down in the past band where this originated at.
It doesn’t make any sense unless you look deeper into it what this all means but what doesn’t make sense is why nobody points out what’s going on in the centimeters already in the 1÷250 versus 1÷254 which is the same thing as can be found in the math at higher orders as the 365.25 days a year instead of 360 or the reason that is 1461 instead of 1440 minutes in a daIt doesn’t make any sense unless you look deeper into it what this all means but what doesn’t make sense is why nobody points out what’s going on in the centimeters already in the 1÷250 versus 1÷254 which is the same thing as can be found in the math at higher orders as the 365.25 days a year instead of 360 or the reason that is 1461 (4x365.25 leap year) instead of 1440 minutes , Whitehorn response represents that as well at 14620 Hz instead of 14400.
that’s all of these things crossing paths the same way 92.99555hz and 92.999555 Cm do and so does 186.624/46.656 and and the opposite all these things are in this opportunity is window of reflection not only in the cabinet but in the exact numbers that are employed and frequencies and spacing between all of this.
There isn’t much to dampen but there’s a heck A lot to see if you look at what happens in byA lot to see if you look at what happens in 1÷254. Remember the centimeter is eight divided by pi and pie divided by eight etc. etc. and things will make more sense instead of not.
I’ll be lucky if what I typed even make sense lol I’m trying to explain it enough to make the connection and not require everybody to make 4I’ll be lucky if what I typed even make sense lol I’m trying to explain it enough to make the connection The only mistake and all this is nobody’s using radiance to describe or understand enclosures at the same time the frequencies at the same time breaking the cabinet down into parts that are not things you wanna get rid of the things you want to emphasize and enforce which ultimately means stay the heck away from advanced centerline mode and flares and tapers. They cannot create something that’s going to reflect back and not cause an issue in any other way the reason that the number 05238 is the fivThey cannot create something that’s going to reflect back and not cause an issue in any other way the reason that the number 05238 is The six sides of a rectangle which has a perimeter of pi as 3.14285742. That’s also the percentage of volume in a sphere going into a cube half the size of that rectangle is displacement 52.38%.’
That also is That also Is the number of drops of water 1000 in a kilogram
swing on a pendulum in exactly 1 second moves 05238 across an arc centered on perpendicular at zero and split the golden ratio exactly in half at 02618 which is exactly twice radians of 013095238 which is 1/4 of the speed of light in a waveform in the math behind all of this which is also used in other areas at even higher frequencies in the medical field and astrophysics defined the parsec, exposes the relationship between 432 and 360, Also five and six which is how far the driver is away from east enalso five and six which is how far the driver is away from each And if you look at it and understand what’s gonna be going on inside their head they look in response and ask yourself how that got canceled out and line sand if you look at it and understand what’s gonna be going on inside their head they look in response and ask yourself how that got canceled out and aligned so perfectly?
it didn’t because nobody ever looks?? But if you do you’ll see what I mean and a lot of this stuff might make sense😂🙏🏻
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That may be true depending on what sheet or other material dimensions you have available; the acoustics are another matter of course.It also takes more wood to make a box when it isn't a cube, even though it has the same volume.
An excellent experiment -if you'd mentioned originally that you were using a box that you deliberately designed to be compromised as your comparative basis, it might have saved a lot of time.Believe it or not, it was intentional. After my 350liter TH experiment I built a smaller horn and a multi-port enclosure (ports on top and side for a theory on room interaction), after those I eventually made a vented design out of scrap OSB for verification purposes. Some things are best experienced in order to truly appreciate what is happening.
Edit:
I consider it well worth the limited time and effort, I recommend people to try and experiment if they have the time and opportunity to do so.
I made a spreadsheet connecting 360 and pi and 432/864/12/24….and broke it down into centimeters and inches but also degrees and radians and frequencieszzzz
And see what’s going on in higher order qw pipes they can be exposed instead of the assumption that those are all catastrophic mess and always will be.
But it’s so handy and looking at the office at driver entry for rain and where to do what there is well because it’s just an extreme exact thing built upon the same exact thing in higher orders.
But as soon as you look at the top of the food chain wherever that seems to be at work backwards then everything makes sense
??
The math is in seconds and the dimensions of the Sun both units not metric or imperial. Does frequencies spread into any closures that exposes A method to all of this
And see what’s going on in higher order qw pipes they can be exposed instead of the assumption that those are all catastrophic mess and always will be.
But it’s so handy and looking at the office at driver entry for rain and where to do what there is well because it’s just an extreme exact thing built upon the same exact thing in higher orders.
But as soon as you look at the top of the food chain wherever that seems to be at work backwards then everything makes sense
??
The math is in seconds and the dimensions of the Sun both units not metric or imperial. Does frequencies spread into any closures that exposes A method to all of this
Attachments
You have to look far out of the band with the subwoofer to realize what being affected instead of what’s being hidden in that it’s really crazy and interesting because it’s all on this chart right here.
Until you’re lining up to date on this chart as you can see with your closure you won’t realize what does numbers are already otherwise? That includes the procession of the equinox in the number of years it takes through the seasons of the earth to change from one side to the other and back what a coincidence how quickly that is just like leap year in minutes in a day share the same number however they like many other numbers show up again higher up and higher orders. Does the frequency that will cancel out as well they’re all represented and always will be using the number three. But you have to use radians or degrees and break down the circumference of the enclosure in those parts in order to get anywhere some of those things are already universally known as sort of being used but it’s not at all being represented in a way that makes a connection to what it really is about or how to understand it in a variety of ways not just one in particular like the mass loaded transmission line oroffset driver entry version which begins to expose these things?
The full range drivers are so wonderful but so are the subwoofers when you use the same thing anyhow and I’m not talking about the obvious bad with extension in both directions the compounded version or the cabinets that nobody wants to do because they’re supposedly so hard and inconvenient are all very much worth it once you realize what you get when you do it right in this manner break up the circlThe full range drivers are so wonderful but so are the subwoofers when you use the same thing anyhow and I’m not talking about the obvious bad with extension in both directions the compounded version or the cabinets that nobody wants to do because they’re supposedly so hard and inconvenient are all very much worth it once you realize what you get when you do it right in this manner?
all of the higher order modes don’t go soccer what are you doing allow them to you on every possible level not just the obvious appearance or assumptions or things? Look at something entirely different and then refer back to what we already know? I think it’s something missing that might be of interest way to gauge how everything is tied in together universally and not just as a cliché this is exactly the picture of the universe if you apply this as an isosceles triangle split in half exactly as the Egyptian pyramid exposes
Until you’re lining up to date on this chart as you can see with your closure you won’t realize what does numbers are already otherwise? That includes the procession of the equinox in the number of years it takes through the seasons of the earth to change from one side to the other and back what a coincidence how quickly that is just like leap year in minutes in a day share the same number however they like many other numbers show up again higher up and higher orders. Does the frequency that will cancel out as well they’re all represented and always will be using the number three. But you have to use radians or degrees and break down the circumference of the enclosure in those parts in order to get anywhere some of those things are already universally known as sort of being used but it’s not at all being represented in a way that makes a connection to what it really is about or how to understand it in a variety of ways not just one in particular like the mass loaded transmission line oroffset driver entry version which begins to expose these things?
The full range drivers are so wonderful but so are the subwoofers when you use the same thing anyhow and I’m not talking about the obvious bad with extension in both directions the compounded version or the cabinets that nobody wants to do because they’re supposedly so hard and inconvenient are all very much worth it once you realize what you get when you do it right in this manner break up the circlThe full range drivers are so wonderful but so are the subwoofers when you use the same thing anyhow and I’m not talking about the obvious bad with extension in both directions the compounded version or the cabinets that nobody wants to do because they’re supposedly so hard and inconvenient are all very much worth it once you realize what you get when you do it right in this manner?
all of the higher order modes don’t go soccer what are you doing allow them to you on every possible level not just the obvious appearance or assumptions or things? Look at something entirely different and then refer back to what we already know? I think it’s something missing that might be of interest way to gauge how everything is tied in together universally and not just as a cliché this is exactly the picture of the universe if you apply this as an isosceles triangle split in half exactly as the Egyptian pyramid exposes
Attachments
So do I, so I can say I've been there. There is a certain something that you won't experience if you try to take too many steps forward in theory without stopping to try a few things 😉Some things are best experienced in order to truly appreciate what is happening.
What acoustics are we talking about?the acoustics are another matter of course
The shadow dividing up the sides are putting out something very specific even though they’re sitting at an angle of 51.84° as a hypotenuse of all the outside edges when looking from the side when tipping back and looking at an angle from above you see the exact inverse of that from the perpendicular which explains exactly another version of that to someone else’s point of view strangely??
As it turns out that is going to provide you with the means to create a map of the solar system perfectly using the Pythagorean theorem or the 30 6090 triangle and 30 being the speed of light but it’s even more ironic how it works because the numbers are hidden in a centimeter already in the conversion to an inch. The rest of the numbers are intervals of a day it’s worth of seconds at 43 2 per 12 hours?
there’s 500 seconds before light travels and reaches earth that’s 1496 that’s also an isosceles triangle as described on that pyramid which has a base of 1496 and every single side is 1728 or split at 864 the diameter of the sun and 24 hours or seconds and keep going with that idea and build your enclosure based on that and realize there’s a couple of unit conversions and steps in that to get to frequencies from what’s already described in the sequence of numbers at 1/254. And all those decimal points and how they relate to 0.250 or four…
I don’t understand what happens completely I just see the numbers and then go find out how they represent everything in physics and how it’s all ready something that you can come up with if you opened up NASA’s website right now and looked at very specific numbers of every single planet.
radius and diameter and volume and then escape Velocity
Potential energy kinetic energy or pressure and velocity in your cabinet per centimeter in this very specific layout that isn’t guessing it’s just assuming the number He has an angle of 30 or 300 has 05238 or 5.238 but also as or 3.6666/7 in radians , based on 44÷7. It’s gotta add up or doesn’t but every single fold in between or distance from something else does as well but it isn’t at all as complicated as it should bIt’s gotta add up or doesn’t but every single fold in between or distance from something else does as well but it isn’t at all as complicated as it could be!?
in the middle of Omaha Nebraska there’s an old circle in a concrete brick fence where you stand in the middle and you talk and it comes right back at you and anyone sitting just outside the fence can’t hear anything?? Like a state park or something but you can experience what would happen in spiracle shape of an enclosure but then if you only had that same exact moment the perfect rectangle or sequence of them to reference as well it would point out something very specific to the number 05238 and that’s the same exact reason why the rectangle inside Egyptian pyramid is representing a sphere in a way that is perfect they used to make the perfect enclosure because it’s screaming something that’s very important and always has been that’s the details of something so sophisticated in math but nobody will even look or consider it just like this.
As it turns out that is going to provide you with the means to create a map of the solar system perfectly using the Pythagorean theorem or the 30 6090 triangle and 30 being the speed of light but it’s even more ironic how it works because the numbers are hidden in a centimeter already in the conversion to an inch. The rest of the numbers are intervals of a day it’s worth of seconds at 43 2 per 12 hours?
there’s 500 seconds before light travels and reaches earth that’s 1496 that’s also an isosceles triangle as described on that pyramid which has a base of 1496 and every single side is 1728 or split at 864 the diameter of the sun and 24 hours or seconds and keep going with that idea and build your enclosure based on that and realize there’s a couple of unit conversions and steps in that to get to frequencies from what’s already described in the sequence of numbers at 1/254. And all those decimal points and how they relate to 0.250 or four…
I don’t understand what happens completely I just see the numbers and then go find out how they represent everything in physics and how it’s all ready something that you can come up with if you opened up NASA’s website right now and looked at very specific numbers of every single planet.
radius and diameter and volume and then escape Velocity
Potential energy kinetic energy or pressure and velocity in your cabinet per centimeter in this very specific layout that isn’t guessing it’s just assuming the number He has an angle of 30 or 300 has 05238 or 5.238 but also as or 3.6666/7 in radians , based on 44÷7. It’s gotta add up or doesn’t but every single fold in between or distance from something else does as well but it isn’t at all as complicated as it should bIt’s gotta add up or doesn’t but every single fold in between or distance from something else does as well but it isn’t at all as complicated as it could be!?
in the middle of Omaha Nebraska there’s an old circle in a concrete brick fence where you stand in the middle and you talk and it comes right back at you and anyone sitting just outside the fence can’t hear anything?? Like a state park or something but you can experience what would happen in spiracle shape of an enclosure but then if you only had that same exact moment the perfect rectangle or sequence of them to reference as well it would point out something very specific to the number 05238 and that’s the same exact reason why the rectangle inside Egyptian pyramid is representing a sphere in a way that is perfect they used to make the perfect enclosure because it’s screaming something that’s very important and always has been that’s the details of something so sophisticated in math but nobody will even look or consider it just like this.
So do I, so I can say I've been there. There is a certain something that you won't experience if you try to take too many steps forward in theory without stopping to try a few things 😉
Well, that's everybody here then. It's just a shame it wasn't noted in the first place as it might have stopped an inordinate waste of everybody's time.
Already pointed out in several posts above.What acoustics are we talking about?
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