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<blockquote data-quote="huricaine" data-source="post: 7635082" data-attributes="member: 622532">Yea the oldschool stroker is not a point. It had short throw which increases motor force and controll(lowers Q) compared to a longer stroke.Btw: Motor force is the most important, hate to break it to the people who repeat lines like: if only motor force was everything. If you have designed and built subs then you know that it&#039;s actually difficult to stay within a low enough Q. Shooting for a low Q is always the thing to have in mind. Having a weak motor will make this much more difficult and will require compromises such as less xmax, higher FS from a looser suspension and or lighter cone(Mechanical efficiency lowers the Q).If I had a sub with a Qts of .28 and i wanted to lower the FS then i could add some mass to it and still stay within a low enough Q. You could also tighten the suspension for mechanical power handling. What if you wanted both? You would have to tightn the suspension and also add some mass to make sure the Fs isn&#039;t too high.Now, if you have a weaker motor, to achieve an average Q like of around .4, your parts are going to be different then a sub that has a larger motor force and similar parameters. The larger motor force can have a lower Q, and or stiffer suspension and lower Fs compared to the weaker sub that had less mechanical power handling, and and or a higher Fs.This is why lower line subs with smaller motors are usually geared towards sealed boxes, because to get a decently low Fs and power&nbsp; handling the Q will be on the high side because the motor isn&#039;t strong enough keep it low while having the mass and stiffness it does.</blockquote>

[QUOTE="huricaine, post: 7635082, member: 622532"] Yea the oldschool stroker is not a point. It had short throw which increases motor force and controll(lowers Q) compared to a longer stroke. Btw: Motor force is the most important, hate to break it to the people who repeat lines like: if only motor force was everything. If you have designed and built subs then you know that it's actually difficult to stay within a low enough Q. Shooting for a low Q is always the thing to have in mind. Having a weak motor will make this much more difficult and will require compromises such as less xmax, higher FS from a looser suspension and or lighter cone(Mechanical efficiency lowers the Q). If I had a sub with a Qts of .28 and i wanted to lower the FS then i could add some mass to it and still stay within a low enough Q. You could also tighten the suspension for mechanical power handling. What if you wanted both? You would have to tightn the suspension and also add some mass to make sure the Fs isn't too high. Now, if you have a weaker motor, to achieve an average Q like of around .4, your parts are going to be different then a sub that has a larger motor force and similar parameters. The larger motor force can have a lower Q, and or stiffer suspension and lower Fs compared to the weaker sub that had less mechanical power handling, and and or a higher Fs. This is why lower line subs with smaller motors are usually geared towards sealed boxes, because to get a decently low Fs and power handling the Q will be on the high side because the motor isn't strong enough keep it low while having the mass and stiffness it does. [/QUOTE]

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