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Boom vs SQ
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<blockquote data-quote="geolemon" data-source="post: 372351" data-attributes="member: 547749"><p>Certain subs are "best suited" for sealed..</p><p></p><p>Certain subs are "best suited" for ported.</p><p></p><p>I don't know the specs offhand for the Q's, but I always believed they were built for maximum efficiency... seems to be the customer base they are trying to market to are kids looking for some boom in the high school parking lot...</p><p></p><p>Particularly the Q's, which I know quite a few SPL competitors have had luck with..</p><p></p><p>(that very statement alone, essentially fundamentally, doesn't say good things about their sound quality, in terms of accurate reproduction)</p><p></p><p>I'm assuming the Qes is quite high... maximizing motor strength.</p><p></p><p>As such, Qts will be quite high.</p><p></p><p>Since efficiency is a design priority, I'd also assume these things have an Fs closer to 30hz (if not higher) than it is closer to 20hz...</p><p></p><p>What does this mean to you?</p><p></p><p>This would give the sub a very high Efficiency Bandwidth Product (EBP), and a low Qts...</p><p></p><p>Both of which point to a "ported box type subwoofer".</p><p></p><p>A ported box woofer is stronger, generally has a higher Fs...</p><p></p><p>It can better contend with the additional forces inside the ported enclosure (the air moving in the port carries momentum, countering the motion of the subwoofer, essentially).</p><p></p><p>In a sealed enclosure however, a sub such as this may result in an overdamped, lifeless, almost boring quality to it... even though efficiency is high, theoretically.</p><p></p><p>I'll agree with those who generalize that "sealed enclosures are theoretically more ideal for sound quality applications"...</p><p></p><p>...but it's important to utilize a driver that is meant for use in a sealed enclosure to realize the benefits. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</p><p></p><p>You may wish to consider:</p><p></p><p>1) purchasing a different subwoofer.. or planning it as a future upgrade.</p><p></p><p>2) purchasing a different enclosure.</p><p></p><p>And please, by all means, do verify (someone?) that this woofer does have a relatively low Qts (lower than about 0.45), and a relatively high Fs (close to 30hz, if not higher)... because I don't have it's specs handy.</p><p></p><p>My words really are relative to those numbers. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</p></blockquote><p></p>
[QUOTE="geolemon, post: 372351, member: 547749"] Certain subs are "best suited" for sealed.. Certain subs are "best suited" for ported. I don't know the specs offhand for the Q's, but I always believed they were built for maximum efficiency... seems to be the customer base they are trying to market to are kids looking for some boom in the high school parking lot... Particularly the Q's, which I know quite a few SPL competitors have had luck with.. (that very statement alone, essentially fundamentally, doesn't say good things about their sound quality, in terms of accurate reproduction) I'm assuming the Qes is quite high... maximizing motor strength. As such, Qts will be quite high. Since efficiency is a design priority, I'd also assume these things have an Fs closer to 30hz (if not higher) than it is closer to 20hz... What does this mean to you? This would give the sub a very high Efficiency Bandwidth Product (EBP), and a low Qts... Both of which point to a "ported box type subwoofer". A ported box woofer is stronger, generally has a higher Fs... It can better contend with the additional forces inside the ported enclosure (the air moving in the port carries momentum, countering the motion of the subwoofer, essentially). In a sealed enclosure however, a sub such as this may result in an overdamped, lifeless, almost boring quality to it... even though efficiency is high, theoretically. I'll agree with those who generalize that "sealed enclosures are theoretically more ideal for sound quality applications"... ...but it's important to utilize a driver that is meant for use in a sealed enclosure to realize the benefits. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] You may wish to consider: 1) purchasing a different subwoofer.. or planning it as a future upgrade. 2) purchasing a different enclosure. And please, by all means, do verify (someone?) that this woofer does have a relatively low Qts (lower than about 0.45), and a relatively high Fs (close to 30hz, if not higher)... because I don't have it's specs handy. My words really are relative to those numbers. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] [/QUOTE]
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