CURIOUS: What makes one sub louder than another?

[Amokie 10+ year member]

I've always been curious... what physically makes one subwoofer louder than another?

If you play a tone of 50hz, the sub moves in and out 50 times a second. That is true for EVERY sub that plays a 50hz tone. The only 2 factors that I can think of that will change the spl of a sub are surface area and excursion, because they would cause more of a displacement of air. But there are 10s louder that 18s and subs with less excursion louder than subs with greater excursion.

Could someone explain? Thanks.

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[jmanpc 5,000+ posts]

The db gods bless certain subs.

 

[ItalynStylion 10+ year member]

The db gods bless certain subs.

But only if they have been good in their past sub life do the reincarnated subs get blessed with the DB's

 

[jmanpc 5,000+ posts]

But only if they have been good in their past sub life do the reincarnated subs get blessed with the DB's

Older CV Strokers were reincarnated as Funky Pups //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

 

[ItalynStylion 10+ year member]

But seriously, I have often wondered this myself. Aside from the obvious excursion and cone area what else? Does the mass of the moving sub have anything to do with it?

 

[xtremekustomz 10+ year member]

cone area and throw have alot to do with it

 

[xtremekustomz 10+ year member]

guess you already knew that though LOL

 

[Megalomaniac 5,000+ posts]

efficiency

 

[jeremiah 10+ year member]

hhaammm??

 

[rpfuror 10+ year member]

efficiency

^ the ratio of magnet to coil to allow more power to be used.

 

[jeremiah 10+ year member]

O I now when the............

 

[bamaboy 5,000+ posts]

all the factors come into play, not just one or 2, you have to look at more than xmax and Sd

 

[PatFitz9 10+ year member]

lots of factors, but motor strength is important. if it has a weak motor, it's not going to move much air.

 

[ga12r 10+ year member]

Alot of things come into play with pure spl subs. Efficiency, power handling, Fs and BL are all important. Xmax not so much.

 

[bamaboy 5,000+ posts]

just wonder what does FS do in a SPL sub?

i know why all the others //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif