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Message: <blockquote data-quote="mobeious" data-source="post: 6568402" data-attributes="member: 554882">This is the "by the book way" for a flat responce but lacks in overall outputsay u have a box that is 1cube sealed and .6 ported at 55hz that is going to yeld a roll off around 34hz and 59hz  and the box will be flat from those 2 roll offs but with a overall output of -2db  well lets keep the 1cube sealed and bump up the ported section to around 2cubes and lower our tuning freq to around 49 what that does is through a big peak in the graph u still roll off at say 34 and 59 but u have say a 8db peak at 45hz and still -2db at roll off points  so u get a overall louder responce between the roll off points ... and if u play with the numbers just right u can flatten that out and keep the + gain in DB</blockquote>

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