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<blockquote data-quote="Papermaker85" data-source="post: 6081621" data-attributes="member: 572595"><p>john is a great guy, i dont dislike him one bit, but above tuning ported acts alot like freeair, compliance and qms are relied on, not souly the motor. thats the reason many spl woofers have such a low vas... i tried telling him before i pushed it hard that the courrgations on my woofer have a different stifness in each set.. i was wrong about the ottermost its actually the very first 2 right next to the former.. onceits reaches a certian throw it just looses all its stiffness.. it didn&#039;t do it the first day, after i dropped the box to 2.8 tuned to 32 and played alot of music(5-6 hours riding,stopping checking excursion etc..) i noticed a decline in output above 50.. so much i got nervious and lowered the xover for 70 to 60 then to 50.. it justdidn&#039;t sound good above about 45-50 and i noticed excursion above 50 when crossed higher(recheck changed solpes x over points re donesome wiring checked the amps output) it would act like it was unloading..</p></blockquote><p></p>

[QUOTE="Papermaker85, post: 6081621, member: 572595"] john is a great guy, i dont dislike him one bit, but above tuning ported acts alot like freeair, compliance and qms are relied on, not souly the motor. thats the reason many spl woofers have such a low vas... i tried telling him before i pushed it hard that the courrgations on my woofer have a different stifness in each set.. i was wrong about the ottermost its actually the very first 2 right next to the former.. onceits reaches a certian throw it just looses all its stiffness.. it didn't do it the first day, after i dropped the box to 2.8 tuned to 32 and played alot of music(5-6 hours riding,stopping checking excursion etc..) i noticed a decline in output above 50.. so much i got nervious and lowered the xover for 70 to 60 then to 50.. it justdidn't sound good above about 45-50 and i noticed excursion above 50 when crossed higher(recheck changed solpes x over points re donesome wiring checked the amps output) it would act like it was unloading.. [/QUOTE]

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