A friend recently posed the following question to me and I couldnt answer it...

Which has more force,the forward motion of the cone or the inward motion of the cone?

If someone could explain this and why my buddy and I would appreciate it.

 

Should be equal.

 

^ what he said.

 

yes it should be equal im most cases but unless i am mistaken it has a lot to do with your subwoofer. in my case. the outer throw is 1" but it has a total peak to peak of 3.5 inches. which you will almost never find a note that will make the sub peak out unless you are doing a resonance test (signwave 0-200 hz) without a subsonic filter. (which i do occasionaly to show off to people--looks cool watching 3subs throw out 3+ inches at the same time.) hehe

 

it is sopposed to be the same however there is a a wierd thing about the suround being more restrictive on the inward movment do to it's shape.weather u car or not is not to big a deal cause i hear the diffrence is neglajable. [img]graemlins/freak.gif[/img]

 

i guess it depends on what material the rest of the woofer is made of. if the spider is made a certian way i can only imagine that it will flex one way a bit better than another(depending on which way the ridges fold towards), the only time i have seen this is on a woofer where i pushed on the cone and it would make a click. but it did not do it on if the cone was pushed out. it turned out to be that one of the folds on the spider was bending, but it only did it one way. my only conclusion was that it was more prone to move one way than the other? i think?. i have also noted that some woofers after breaking in, sit a bit lower than when brand new. i have not seen this extensively but it does lead me to believe that one of the two directions is easier for it to move. I do not know enough about speakers to know the exact answer, but i work with them all day long every day and i have seen some things that lead me to belive that one of the 2 ways moves better.

ultimately the same weight is involved on the inward stroke as the outward. and that 70v+ and 70 v- should make it identicle . but i do not think that there is such thing as a perfectly designed woofer. The first fold of the magnet next to the frame is only in one direction, i do not know that if you flipped that spider arounbd so that the fold went the other way(would make a difference.) address this question to dave at speaker city he might know?
service@speakercity.ca

[ August 15, 2004, 04:18 PM: Message edited by: Team Shadow ]

 

sideways

 

lol his deal says yankee under it lol . should be the same unless they do what my subs do and go in and dont ever come back out [img]smile.gif[/img]

 

Yeah.. you were having problems with your Fusion subs at the Kingston show.

I noticed that after you burped they would flop around for a few seconds.

Did you ever figure out what that was?