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#1
Posted to rec.audio.high-end
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High Qts and Bass reflex...newbie Question....
[ Moderator's note: while this initially appears better
suited for rec.audio.tech, I think that this may be a good starting point for a discussion of technical figures and their relationship to quality. -- dsr ] I have been an analog circuit designer for decades and I have recently rediscovered my interest in speaker design. I am playing around with a pair of cheap "full range" coax drivers for the fun of it and as a way to gain experience in measuring Theile/Small parameters and playing with enclosure concepts. The question: I have read that high Qts drivers "will not work" for bass reflex designs. I measured the small 5.25 inch drivers I am experimenting with (typically used in car audio) as having a Qts of 1.88. Based on my reading, this is very high (is it even too high a value to be real i.e. I screwed up the measurement?). I would appreciate any insight or discussion on why high Qts drivers and bass reflex don't go together. TIA, Steve |
#2
Posted to rec.audio.high-end
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High Qts and Bass reflex...newbie Question....
On Mar 15, 3:51=A0am, "
wrote: I have been an analog circuit designer for decades and I have recently rediscovered my interest in speaker design. =A0I am playing around with a pair of cheap "full range" coax drivers for the fun of it and as a way to gain experience in measuring Theile/Small parameters and playing with enclosure concepts. The question: =A0I have read that high Qts drivers "will not work" for bass reflex designs. =A0I measured the small 5.25 inch drivers I am experimenting with (typically used in car audio) as having a Qts of 1.88. =A0Based on my reading, this is very high (is it even too high a value to be real i.e. =A0I screwed up the measurement?). =A0I would appreciate any insight or discussion on why high Qts drivers and bass reflex don't go together. =A0TIA, =A0Steve Because you can't achieve a reasonable bass response in a reasonable box size and tuning, compared to what can be acheived for similar sized drivers than have a better Qts range for bass reflex, around 0.3 - 0.5. |
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