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<blockquote data-quote="M@nJo" data-source="post: 2392772" data-attributes="member: 559973">i have two JL12w6v2&#039;s in a small/medium sealed box and decided to give polyester fiberfill a try (bought from walmart). i throw in just enough polyfill til it barely touches the magnet of the woofer (which is estimate .3lb per chamber). this is the loose fill and not folded up ones sold on crutchfield. first thing i noticed was that i lost some SPL. without the fill, i would play a specific track at max volume and it would make the subs hit hard enough to fold down my rear view mirror on loud bass hits. after the fill, i didnt get that effect nor did i feel an audible difference. i know it says 1lb fill per cubic ft but if i were to pack anymore, the fill wouldve been rubbing the magnet/sub coil easily...which i heard to avoid doing to prevent the fill burning from the voicecoils of the woofer.it seems like everyone had success with polyfill besides me. could somebody tell me what i did wrong?</blockquote>

[QUOTE="M@nJo, post: 2392772, member: 559973"] i have two JL12w6v2's in a small/medium sealed box and decided to give polyester fiberfill a try (bought from walmart). i throw in just enough polyfill til it barely touches the magnet of the woofer (which is estimate .3lb per chamber). this is the loose fill and not folded up ones sold on crutchfield. first thing i noticed was that i lost some SPL. without the fill, i would play a specific track at max volume and it would make the subs hit hard enough to fold down my rear view mirror on loud bass hits. after the fill, i didnt get that effect nor did i feel an audible difference. i know it says 1lb fill per cubic ft but if i were to pack anymore, the fill wouldve been rubbing the magnet/sub coil easily...which i heard to avoid doing to prevent the fill burning from the voicecoils of the woofer. it seems like everyone had success with polyfill besides me. could somebody tell me what i did wrong? [/QUOTE]

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