Deeper cone? Is it special?

[MyFartsStink 10+ year member]

When I make more money, I plan on doing an experiment on this since no one has tried, but I will make the box of the deeper coned sub just a tad bigger as I want the same volume in both boxes. And see what the meter will say about this.

 

[audioholic 5,000+ posts]

When I make more money, I plan on doing an experiment on this since no one has tried, but I will make the box of the deeper coned sub just a tad bigger as I want the same volume in both boxes. And see what the meter will say about this.

Are you dense?

 

[bloodhound50 10+ year member]

if the cone were deeper... wouldn't the spider size be reduced if you wanted more sa? giving less excursion and moving less air. I know you can have "deeper" cone but if it was like a moving funnel i just don't see it working out.

 

[audioholic 5,000+ posts]

if the cone were deeper... wouldn't the spider size be reduced if you wanted more sa? giving less excursion and moving less air. I know you can have "deeper" cone but if it was like a moving funnel i just don't see it working out.

You can build a speaker that has a deep cone AND full size/numbers of spiders. The over all speaker length would likely be affected however.

 

[MTXman 10+ year member]

This thread makes me think of the Hertz MLK165, I read the article, very interesting as to why they made the cone this way.

And the Mille series subwoofers.

 

[bloodhound50 10+ year member]

now dont flip out becuase im just trying to think as i go. sound is created by the vibration of the cone right? and when it excurts more and moves more air its louder. now im thinking this like if you were to take a giant pancake and run with it it would have to move more air to go with you right? but if you took a funnel shaped cone like a v it wouldnt neccecarily be moving any air right?

P.S. dont flip out if its a dumb Q

 

[audioholic 5,000+ posts]

now dont flip out becuase im just trying to think as i go. sound is created by the vibration of the cone right? and when it excurts more and moves more air its louder. now im thinking this like if you were to take a giant pancake and run with it it would have to move more air to go with you right? but if you took a funnel shaped cone like a v it wouldnt neccecarily be moving any air right?P.S. dont flip out if its a dumb Q

Again cone shape has zero affect on displacement potential. The cone is not running, it moves back and forth. Hence, if its a deep dished cone that appears to lose displacement potential because that big V shape will eat into its 'displacement cylinder' (the imaginary 3-d cylinder created from moving the cone), but on the far side of the stroke that V shape is point OUT and will add to the volume of the cylinder. Again, effectively making it exactly the same as if the cone were flat.
Don't be afraid to ask a question. I wont freak out on you for doing so. And if anyone else ever does, you have them come talk to me. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Electrodynamic 10+ year member]

the short answer is NO

//content.invisioncic.com/y282845/emoticons/iagree.gif.15d6c075ee8d3913ba26866d06993068.gif

And //content.invisioncic.com/y282845/emoticons/iagree.gif.15d6c075ee8d3913ba26866d06993068.gif with Audioholic. Speaker cone depth has nothing to do with displacing more air.

 

[audioholic 5,000+ posts]

****it, I knew I should have just stuck to the short answer too.

 

[Electrodynamic 10+ year member]

Haha, I saw that and thought "whew!, that'll save me a lot of typing." //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Immacomputer 10+ year member]

Pictures > Short Answer > Long Audioholic answer. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Look at that image and imagine two 3D shapes. The red and green filler is total air displacement and the two radiating surfaces vary. One is flat and the other is conical. When the flat piston moves up and down, it's stroke will cover the green area. When the conical surface moves up and down, its stroke is the red area (imagine that the red area is actually cone shaped because it's hard to do that in paint!). As long as their stroke (height) is the same and they have the same diameter, they will have the same displacement regardless of how deep the cone is.

You should be able to see that very easily; Imagine the red bottom part of the cone moving up the white part. The total amount of red would equal the total amount of green, wouldn't it?

 

[audioholic 5,000+ posts]

Pictures > Short Answer > Long Audioholic answer. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Im just glad I fit in there somewhere.

 

[casper97ta 10+ year member]

Thanks Audioholic and Immacomputer for clearing that up and taking the time to explain it in detail. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[audioholic 5,000+ posts]

Glad to help.

 

[ngsm13 5,000+ posts]

Are you dense?

Lol.

Getting to be more and more like my responses after I explain something. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

nG