Reply to thread

Message

<blockquote data-quote="keep_hope_alive" data-source="post: 7933464" data-attributes="member: 576029">the plastic liners on the door panels are a water barrier.&nbsp; only remove them if you are going to reseal the door completely with something else.&nbsp; the inside of the doors gets wet when it rains (window seals aren&#039;t perfect) then water runs down the interior surfaces, bringing some dirt with it.seals are required for bass and midbass.&nbsp; otherwise the rear wave just cancels with the front and you hear no bass.&nbsp; it doesn&#039;t matter what the speaker is capable of producing - what matters is what you end up hearing.&nbsp; proof is just playing a sub without a box vs. with a box.dynamat is not the same as peel-n-seal.&nbsp; the former is a damping product made to reduce panel vibrations on a molecular level while the latter is an asphalt product used for roofing membranes.&nbsp; asphalt products stink and don&#039;t stick well to vertical metal surfaces and do not provide damping.&nbsp; they do add mass and affect resonance if adhered well.&nbsp; they do provide decent noise barriers though.the next best thing you can do for door speakers is to put fiberglass batt insulation inside thin bags (like grocery bags), seal the bags with tape (air/water tight - no holes), then tape them to the outer door skin - the more you put in the better, just stay clear of teh window mechanisms.&nbsp; this will absorb the airborne reverberation in the door and dramatically improve the sound from the speakers.&nbsp; the reasons are many, just trust me on this.&nbsp; foams do not provide adequate absorption.so, for a successful door speaker installation you need seals, a sealed cavity, and absorption in that cavity.</blockquote>

[QUOTE="keep_hope_alive, post: 7933464, member: 576029"] the plastic liners on the door panels are a water barrier. only remove them if you are going to reseal the door completely with something else. the inside of the doors gets wet when it rains (window seals aren't perfect) then water runs down the interior surfaces, bringing some dirt with it. seals are required for bass and midbass. otherwise the rear wave just cancels with the front and you hear no bass. it doesn't matter what the speaker is capable of producing - what matters is what you end up hearing. proof is just playing a sub without a box vs. with a box. dynamat is not the same as peel-n-seal. the former is a damping product made to reduce panel vibrations on a molecular level while the latter is an asphalt product used for roofing membranes. asphalt products stink and don't stick well to vertical metal surfaces and do not provide damping. they do add mass and affect resonance if adhered well. they do provide decent noise barriers though. the next best thing you can do for door speakers is to put fiberglass batt insulation inside thin bags (like grocery bags), seal the bags with tape (air/water tight - no holes), then tape them to the outer door skin - the more you put in the better, just stay clear of teh window mechanisms. this will absorb the airborne reverberation in the door and dramatically improve the sound from the speakers. the reasons are many, just trust me on this. foams do not provide adequate absorption. so, for a successful door speaker installation you need seals, a sealed cavity, and absorption in that cavity. [/QUOTE]

Verification