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<blockquote data-quote="keep_hope_alive" data-source="post: 8205743" data-attributes="member: 576029">you can force a non-ideal alignment into IB with an aperiodic (AP) membrane and get good results.&nbsp; I&#039;ve tried various woofers in IB/AP and all did well if your goal is accurate music.&nbsp; I wouldn&#039;t try SPL competition with the alignment.there are a variety of ways to implement AP.&nbsp; this is a good resource for the various methods:<a href="http://www.teamaudionutz.com/tutorial/1/AP_Enclosures-The_Aperiodic_Cookbook" target="_blank">AP Enclosures-The Aperiodic Cookbook | Tutorials | Team Audionutz</a><a href="http://www.glasswolf.net/papers/aperiodic.html" target="_blank">GlassWolf&#039;s Pages</a>i did mostly rear loaded membranes (or chamber-coupled)<img src="http://www.glasswolf.net/papers/Image4.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />but your best bet for least work is front loaded.&nbsp; just sandwich the fiberglass (or preferably ultratouch insulation) between two speaker grills, secure to the rear deck (needs an air-tight seal against the woofer basket) and experiment with density for tuning.</blockquote>

[QUOTE="keep_hope_alive, post: 8205743, member: 576029"] you can force a non-ideal alignment into IB with an aperiodic (AP) membrane and get good results. I've tried various woofers in IB/AP and all did well if your goal is accurate music. I wouldn't try SPL competition with the alignment. there are a variety of ways to implement AP. this is a good resource for the various methods: [URL="http://www.teamaudionutz.com/tutorial/1/AP_Enclosures-The_Aperiodic_Cookbook"]AP Enclosures-The Aperiodic Cookbook | Tutorials | Team Audionutz[/URL] [URL="http://www.glasswolf.net/papers/aperiodic.html"]GlassWolf's Pages[/URL] i did mostly rear loaded membranes (or chamber-coupled) [IMG]http://www.glasswolf.net/papers/Image4.gif[/IMG] but your best bet for least work is front loaded. just sandwich the fiberglass (or preferably ultratouch insulation) between two speaker grills, secure to the rear deck (needs an air-tight seal against the woofer basket) and experiment with density for tuning. [/QUOTE]

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