ramteid

Im not sure. I know there are more on here but i dont know who.

My brother(ohjay) and I are an hour west of okc. He does not get on here much anymore. Miles is near okc, he builds enclosures and has his own section on this forum.

Welcome. Are you on the oklahoma car audio facebook page? If not, it may be a good idea. A lot of the guys on there meet up a few times a month with all their systems.

You have to hit tab. Put in the first parameter, hit tab, put in second parameter, then tab twice and it should fill some things in automatically.

Gonna be around 4-4.5 feet. I still have to extrapolate parameters.If i can get a job i may sell my zcon and get one of these, if they only need 4-4.5 cubes

I have some songs that i edited that would be great for your system.

I have a 360, but the only online game i play is battlefield 4.

If you cant clearly clarify or convey what you mean then maybe your own definition or understanding is not fully correct. I believe that i made it clear what i meant. I just didnt put enough detail in it or give definitions to help convey it. There have been 2 individuals who have been able to understand what i am saying and another who continues to nitpick.

I never meant that a sub did not move air. I tried explaining exactly what i meant but you continue to nitpick. I said exactly what i meant, as i a subwoofer does not create wind, as in the air molecules near the sub to not get forced to the front of the vehicle by sound waves. I already stated that my ability to convey what i was meaning was lacking, but you continue to nitpick. There is a difference between wind and sound, are both types of movement? Yes. Are they exactly the same? No.

Yes you did, said they don't move...and do again, right below here. Which is it? How does this leaf blower create wind? And what is wind? To make a more clear analogy, does an air pump move air? I'd hope you say yes to this, now think about the diaphragm in an air pump. How is that different than a subwoofer? Do you claim there is a difference between water and air? If you move your hand in the water doesn't the water move? The same can be said for air. If you grab an Asian hand fan and move it through the air, the air moves doesn't it? How is this different than a subwoofer such that the sub doesn't move air?I am also curious how you think the smell moves? Smell is air is it not? By definition then if it travels isn't the air also traveling? and again, you continue to nitpick. does a leaf blower not pull in air and push it out on another end? that would be wind. the smell inside of the enclosure will reach the front of the vehicle without the sub ever being on, from my understanding, the air will move around and circulate any way, sound waves are not the reasoning. like i have stated over and over, i mean that sound waves to dont force the air to move, as in creation of wind, it vibrates the air back and forth, most people seem to catch on to that when i explain it to them. the only thing that the sub will do, when it comes to air moving around, is introduce heat into the environment, causing the air molecules to move faster.

should be interesting, i cant wait to see more.

i know that they propagate similar to water waves, i never said they didnt. a leaf blower is a creation of wind while a subwoofer is just transfering energy through the air. smelling the voice coil has more to do with, well, smell and its ability to travel through air.

Everything i have posted link wise conveys what i am trying to say, which is what physics states. The air molecules move but the air molecules do not travel, as in, from the sub to the persons ear, the energy that travels through the air does. So, the energy travels until it vibrates air molecules that are near and in our ears, causing the ear drum to vibrate with the air molecules, which goes into the cochlea, which has tiny hair like cells that convert the vibrations into electrical impulses, then they are sent to the brain. That is the process, that is how it works, if you have an issue with understanding it, then im not sure what to tell you.

Do you not comprehend what i am trying to convey? If you do, then please, enlighten me on what you would deem as the correct way.

Kinetic? Now we are getting somewhere.Ek = 1/2 mv2 Notice the v in the equation, it's velocity. Pretty sure if you look up the definition of velocity that you will find it is motion which means it is moving. You are still stuck on what i am meaning by movement. Yes, subwoofer moves air, as in it vibrates the air molecules; they move back and forth, they oscillate from a given point, but they do not force the air to travel from one point to another. Im pretty sure an anemometer wont measure the winds from a speaker system since they do not create wind. This video shows what i am stating when it comes to waves from a speaker, albeit, not for very long, but it shows it.

Kinetic?

You stated it didn't move air before. Obviously I think this is more of a communication concern than right/wrong. As for the clarification you cited, if it doesn't move air then "hair tricks" won't work. If you see this differently though I would like to understand why. Generically speaking there are two ways to "move" things. The first is with a forcing function, F=ma (2nd law btw) and the other is to excite a resonant response. I've measured the resonance of every part of the human body and generically speaking hair resonance doesn't fall into the realm of what a subwoofer plays. And yes, even with resonance you need some forcing function, it is just it takes an awful lot less energy to do the work you are trying to accomplish (or more likely avoid). As for NCC's response, sure boundary conditions alter how things are perceived and actually what happens, but they don't change the laws of Physics or how waves operate. Hairtricks would be the same as someone levitating an object, such as a cup or a piece of paper,in their window. The sound wave is energy, the energy can pass from one medium to another. So, some of the energy that is in the air is tranfered to the air, causing it to vibrate like the air molecules. Same with an echo, when the echo reaches a barrier, part of the energy is transfered into the barrier and some is reflected back to the person.

i tried to convey what i was meaning by it does not move air. i did not mean it doesnt move air at all, i meant that it does not force air to travel from the subwoofer in the back of the vehicle to the front of the vehicle; it is a tranfer of energy. so, the air molecules vibrate, they are pushed until they hit another molecule, after they hit that molecule, they are pushed with equal force in the opposite direction and the next molecule continues the process. is that not the third law of motion? i think your confusion lies in the assumption that sound waves and wind are some how equivalent. if the subwoofer moved air, as in it pushed it and the air near the sub was moved to where the driver was, then it would be similar to the wind. so, if that was true, people would not be able to levitate objects, such as cups or paper, at their windows. here is a linke, http://www.mediacollege.com/audio/01/sound-waves.html and in there you will see there it says, "Note that air molecules do not actually travel from the loudspeaker to the ear (that would be wind). Each individual molecule only moves a small distance as it vibrates, but it causes the adjacent molecules to vibrate in a rippling effect all the way to the ear." if i am incorrect, that would mean that physics is completely incorrect and you should invest some time in rewriting physics books and be the next newton. now, i am not denying that my terminology and description of what i mean is lacking. also, i am not saying that the air within the vehicle will not be moving, or circulating, while the sub is transfering energy, just that the air is not circulating due to the sub.

Like i said, my method of conveying what im trying to say is lacking. Ill be more specific. Sound waves do not move air, as in they do not force air to travel from where the speaker is to where the user is, the energy from the speaker travels through the medium, in this case air. They do move air molecules, as in they vibrate, or oscillate, the molecules, which is compression and rarefaction, so the air molecules move back and forth from where they are. Now, the greater the amplitude, or energy, the more molecules that are compressed.

no need to continue arguing, i still feel you all are incorrect, but my method of trying to convey what i mean apparently needs to progress. i will leave this link to this video, that sums up what i was trying to say, at the 14 and 17 minute marks. http://www.youtube.com/watch?v=mjGLN_iMm9M

Or what quentin said. Why are there so many people with "loading" walls? Doesnt make any sense to me

Thank you, that is exactly what i was trying to say.

Well, the reasons for them using the ported side varies from my experiences. A larger ported side will be more efficient, thus more spl at the cost of frequency response, and some people want that type of response. Others i have talked with are just guessing and dont know what changing any of it does, so they are just doing with what they have seen. Btw, this thread should be stickied, because it is very informative and it would make it easier to find later down the road, especially since i sometimes post it for others to read. Hmmm, interesting. Because even at 2x and 3x events. World champions are using like, big 3 or even 6 to one ratio. But again, that's ported to sealed. Not as suggested by the cook book. I dont remember what all the cookbook says, but i know if i was making one for myself for music it would be a small ratio or even larger sealed to ported, depending on the subs, but if i was going for spl i would use a large ported to sealed ratio. Also, playibg around with winisd i am rarely able to get a response that has similar output to a bass reflex enclosure without going with a larger ratio of ported to sealed, but then it becomes too peaky for me.

Well, the reasons for them using the ported side varies from my experiences. A larger ported side will be more efficient, thus more spl at the cost of frequency response, and some people want that type of response. Others i have talked with are just guessing and dont know what changing any of it does, so they are just doing with what they have seen. Btw, this thread should be stickied, because it is very informative and it would make it easier to find later down the road, especially since i sometimes post it for others to read.

If put a piece of tape on the end of a bound up slinky and then let it go does the tape move?Can you move in a sine wave without any velocity? Can you do a hair trick if the air isn't moving? Does water move when you push your hand through it? Do you need me to go on? The examples you have given arent that great. A better example would be putting a piece of tape on a part of a slinky and move one hand side to side. The energy transfers throug the slinky, making the slinky move to a certain extent, but once the energy dissipates the slinky will be in the same exact resting place as it was before the energy transfer, thus the tape would also be in the same place. Or, you could see it as a rope that is held on both ends, when someone moves one side up and down quickly you will see the rope form a wave of energy that is transfered from one end to the other, the rope itself will go back to the same resting place it was previously. That is how sound waves are transfered through mediums such as air.Maybe you should stop trying to read what isn't there.If you constrain the slinky in the stretch/compress direction it is akin to holding your speaker cone completely still. Perhaps when you move your hand through the water in a lake/bathtub/pool the water doesn't move in your mind, but I bet it is moving. And btw, sound is only transferred when it moves energy. Same with any wave. They are all kinetic. Curious in your example, did your hand 'move' the slinky? Han transfer energy to it, just as with the rope example. But if a sub moved air would it not create a vacuum? If so then how would the sound wave continue to travel past the vacuum? Apparently phsyics is completely incorrect about how sound travels.http://www.physicsclassroom.com/class/sound/u11l1c.cfmI already know that. All im trying to say is that air is the medium with which the sound travels and basically, the medium does not move. All the medium does is transfer the energy.If you knew that you wouldn't have posted that speakers don't move air.Do waves in the ocean not move water? If the waves move water how are they different than acoustic waves? That is what i meant by they do not move air, they vibrate it. Moving air would be more like wind, vibrations are more back and forth movements. Maybe i should have tried to convey that in another manor.