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<blockquote data-quote="keep_hope_alive" data-source="post: 7481890" data-attributes="member: 576029">nothing for the front doors unless you have processing for time alignment and plan on doing a 3-way.nothing for rear doors unless it&#039;s a midrange and your head unit has processing and you can run an active bandpass filter.make sure the Q-logic are just a cosmetic start.&nbsp; they are flimsy and don&#039;t seal so you won&#039;t get decent sound without some modifications.&nbsp; good speaker locations are built like good speaker boxes - rigid and airtight.a good sound stage is heavily dependent on speaker aiming.&nbsp; the Q-logic works in some cars but not others.&nbsp; every car is a unique acoustic challenge.a good sound stage is developed with tuning and tweaking.&nbsp; it&#039;s not an out-of-the-box thing.&nbsp; you need to plan for it and have a basic understanding of how we localize sounds.<img src="http://i38.photobucket.com/albums/e128/phat_funky_beats/Sound%20Domain/HRTFexplained.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="keep_hope_alive, post: 7481890, member: 576029"] nothing for the front doors unless you have processing for time alignment and plan on doing a 3-way. nothing for rear doors unless it's a midrange and your head unit has processing and you can run an active bandpass filter. make sure the Q-logic are just a cosmetic start. they are flimsy and don't seal so you won't get decent sound without some modifications. good speaker locations are built like good speaker boxes - rigid and airtight. a good sound stage is heavily dependent on speaker aiming. the Q-logic works in some cars but not others. every car is a unique acoustic challenge. a good sound stage is developed with tuning and tweaking. it's not an out-of-the-box thing. you need to plan for it and have a basic understanding of how we localize sounds. [IMG]http://i38.photobucket.com/albums/e128/phat_funky_beats/Sound%20Domain/HRTFexplained.jpg[/IMG] [/QUOTE]

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