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<blockquote data-quote="T3mpest" data-source="post: 8155523" data-attributes="member: 560148">Mainly because most people don&#039;t care.&nbsp; There are plently of car audio subs that can barely make it up to 60hz, or if they do, rolloff fairly hard after that regardless of how they are placed.&nbsp; Heavy coils, very stiff suspensions, low efficiency and usually nothing to control inductance to go along with all of it.&nbsp; Other main reason beyond that, and part of why subs are designed as they are, is because alot of people just want &quot;groundpounders&quot;..&nbsp; If the sub can play from around 30 to 45hz, they are happy.&nbsp; Not many people shoot for flat response so having a null where they tend to cross their woofers over at anyway isn&#039;t a big deal, especially if they aren&#039;t listening for it.Lastly, sub up port back does eliminate alot of rattles in most vehicles.&nbsp; It seems better in that regard for distortion vs firing at the rear as you don&#039;t need to do as much work to deaden if you fire up.</blockquote>

[QUOTE="T3mpest, post: 8155523, member: 560148"] Mainly because most people don't care. There are plently of car audio subs that can barely make it up to 60hz, or if they do, rolloff fairly hard after that regardless of how they are placed. Heavy coils, very stiff suspensions, low efficiency and usually nothing to control inductance to go along with all of it. Other main reason beyond that, and part of why subs are designed as they are, is because alot of people just want "groundpounders".. If the sub can play from around 30 to 45hz, they are happy. Not many people shoot for flat response so having a null where they tend to cross their woofers over at anyway isn't a big deal, especially if they aren't listening for it. Lastly, sub up port back does eliminate alot of rattles in most vehicles. It seems better in that regard for distortion vs firing at the rear as you don't need to do as much work to deaden if you fire up. [/QUOTE]

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