Originally Posted by
Tom Loizeaux
Thanks to all of you who replied.
The above quote has me confused. How can a Qts of .4 or .5 be correct of a speaker in both air suspension and infinate baffle? Infinate baffle means no back pressure or support as the cone moves, where Air Suspension means a great amount of back pressure or support as the cone moves.
Also, I feel I may have inverted my understanding of Qts. It seems that a soft suspension has a high Qts number (.4 and up) where a stiff suspensuion has a low Qts number (.4 and down) Is this correct? If so, a typical driver for a small sealed cabinet should have a Qts in the neighborhood of .5 to .6, or higher. Right?
In any case, I'm still looking for the numbers for Qts, Fs and any other relivant figure that will lead me to a 12" speaker that will deliver reasonably good low end in a 1.2 cu.ft. sealed box.
Tom