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<blockquote data-quote="SmokeEater850" data-source="post: 4919510" data-attributes="member: 592862">Okay, I was trying to build a box that was 3 cu.ft. tuned to 35 hz. for my 12&quot; L7. Long stroy short it turned out wrong. The port opening was only supposed to be 3&quot; but mine is 3.75&quot;. After entering all the specs into the RE box calculator The tuning came out to almost 37 hz. After playing with it some I figured out I could get it down to right at 30 hz. if the port opening was only 3&quot; and I added 7&quot; to port piece # 2. NOW... Could I just glue a piece of .75&quot; MDF to port piece # 1 to make the opening .75&quot; smaller? And add that extra length to piece # 2? Or would this totally throw everything off? I know this is ghetto as all hell but honestly I couldn&#039;t do it right the next time around and can&#039;t really afford to keep messing up and definately can&#039;t afford to have one built. Looks do not matter, as long as it sounds decent.Box specs are;L- 37&quot;W- 14.5&quot;D- 17&quot;PP1- 10.25&quot;PP2- 14&quot;Port- 3.75&quot; wideThis box just sound like crap as it is, I really want to get much lower...</blockquote>

[QUOTE="SmokeEater850, post: 4919510, member: 592862"] Okay, I was trying to build a box that was 3 cu.ft. tuned to 35 hz. for my 12" L7. Long stroy short it turned out wrong. The port opening was only supposed to be 3" but mine is 3.75". After entering all the specs into the RE box calculator The tuning came out to almost 37 hz. After playing with it some I figured out I could get it down to right at 30 hz. if the port opening was only 3" and I added 7" to port piece # 2. NOW... Could I just glue a piece of .75" MDF to port piece # 1 to make the opening .75" smaller? And add that extra length to piece # 2? Or would this totally throw everything off? I know this is ghetto as all hell but honestly I couldn't do it right the next time around and can't really afford to keep messing up and definately can't afford to have one built. Looks do not matter, as long as it sounds decent. Box specs are; L- 37" W- 14.5" D- 17" PP1- 10.25" PP2- 14" Port- 3.75" wide This box just sound like crap as it is, I really want to get much lower... [/QUOTE]

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