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<blockquote data-quote="T3mpest" data-source="post: 2423458" data-attributes="member: 560148">First off, I&#039;m NOT an SPL guy, never have been.&nbsp; You started the &quot;I like SQ I&#039;m better than you&quot;attitude not me, and it&#039;s unfounded.&nbsp; I&#039;m not an SPL guy.&nbsp; My car has a $500 substage and over 2k upfront, you do the math. Loud bass isnt&#039; my thing...&nbsp; Now, before I get too off topic.&nbsp; Even if you bandpass the rear channels to keep it from localaizing your still dealing with stereo information coming from behind you.&nbsp; Unless you can also decoralate the left and right, to get all CENTER info away from the rear, your going to hurt your center focus up front as well as your overall stage width.&nbsp; Werewolf has a post on it on ECA dealing with exactly what parts of human hearing cause this, I think, may have been another forum.&nbsp; Regardless, it makes sense if you think about it.&nbsp; But hey, what do I know, I&#039;m an SPL head....//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gifThe argument against rear fill is simple.&nbsp; The music wasn&#039;t designed to have speaker behind you when it was being recorded.&nbsp; To add rears will just add information in places that wasn&#039;t supposed to be there.&nbsp; Simple enough?&nbsp; Whether you like it or not has no bearing, it&#039;s still nearly impossible to get right by todays high SQ standards and not worth the effort if you could.&nbsp; Very few cars that compete in SQ comps use rear fill, wanna call them SPL heads too?So if you want &quot;proper&quot; rear fill1.Decoralate L/R (few processors do this, maybe mod a home audio one?)2.Time delay3.bandpass4.Tune, alot.Then again, if we do all that, what was the point?&nbsp; If we are only using low frequency info in the rear, the reflection argument stops working.&nbsp; Once you get low enough, the sound isn&#039;t localizable anyway, relfections will just have a time delay, you wont&#039; hear anything from behind you due to low frequncies and it won&#039;t have time difference from the original wave like an echo does, including all the reflected soud you&#039;d have at the venue of the higher frequencies which no longer exist, so it&#039;s still very&nbsp; incorrect?&nbsp; The echo effect gets ruined.&nbsp; You have no localization behind you like a echo can cause, nor is delayed from the original wave.PS.he was right about the 2.1 thing, someone else brought it up and I used it without thinking about it, my bad.</blockquote>

[QUOTE="T3mpest, post: 2423458, member: 560148"] First off, I'm NOT an SPL guy, never have been. You started the "I like SQ I'm better than you"attitude not me, and it's unfounded. I'm not an SPL guy. My car has a $500 substage and over 2k upfront, you do the math. Loud bass isnt' my thing... Now, before I get too off topic. Even if you bandpass the rear channels to keep it from localaizing your still dealing with stereo information coming from behind you. Unless you can also decoralate the left and right, to get all CENTER info away from the rear, your going to hurt your center focus up front as well as your overall stage width. Werewolf has a post on it on ECA dealing with exactly what parts of human hearing cause this, I think, may have been another forum. Regardless, it makes sense if you think about it. But hey, what do I know, I'm an SPL head....[IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] The argument against rear fill is simple. The music wasn't designed to have speaker behind you when it was being recorded. To add rears will just add information in places that wasn't supposed to be there. Simple enough? Whether you like it or not has no bearing, it's still nearly impossible to get right by todays high SQ standards and not worth the effort if you could. Very few cars that compete in SQ comps use rear fill, wanna call them SPL heads too? So if you want "proper" rear fill 1.Decoralate L/R (few processors do this, maybe mod a home audio one?) 2.Time delay 3.bandpass 4.Tune, alot. Then again, if we do all that, what was the point? If we are only using low frequency info in the rear, the reflection argument stops working. Once you get low enough, the sound isn't localizable anyway, relfections will just have a time delay, you wont' hear anything from behind you due to low frequncies and it won't have time difference from the original wave like an echo does, including all the reflected soud you'd have at the venue of the higher frequencies which no longer exist, so it's still very incorrect? The echo effect gets ruined. You have no localization behind you like a echo can cause, nor is delayed from the original wave. PS.he was right about the 2.1 thing, someone else brought it up and I used it without thinking about it, my bad. [/QUOTE]

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