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<blockquote data-quote="95nissanMini" data-source="post: 6045807" data-attributes="member: 611164">Hey all,I just finished my custom box and installed everything and I am satisfied, but I thought that it would be a little louder than it is or hit lower.I used a slot port facing up on the back of my box using the back as one side of the port. I have about 60sqin of port and tuned to 34hz. I used the port calculator on carstereo.com and clicked the using slot port option. This gave me a much shorter port length than if not using the option and I thought that this was correct. Did I make a mistake and build a box with a much shorter port length than needed causing the frequency to rise and not hit as low? Or do I just need to play with my settings a bit more and leave it? I am not quite sure what to expect from this setup.I am using 2 12&quot; 4ohm dvc type-r subs with a hifonics 1210d amp set to 1000w rms. Old *** sony hu. Used knukoncepts 1/0 wiring kit. Box is around 4.6 cuft with port and sub displacement. It is in an extended cab pickup.So is port length right? or did i fuke it up?Thanks</blockquote>

[QUOTE="95nissanMini, post: 6045807, member: 611164"] Hey all, I just finished my custom box and installed everything and I am satisfied, but I thought that it would be a little louder than it is or hit lower. I used a slot port facing up on the back of my box using the back as one side of the port. I have about 60sqin of port and tuned to 34hz. I used the port calculator on carstereo.com and clicked the using slot port option. This gave me a much shorter port length than if not using the option and I thought that this was correct. Did I make a mistake and build a box with a much shorter port length than needed causing the frequency to rise and not hit as low? Or do I just need to play with my settings a bit more and leave it? I am not quite sure what to expect from this setup. I am using 2 12" 4ohm dvc type-r subs with a hifonics 1210d amp set to 1000w rms. Old *** sony hu. Used knukoncepts 1/0 wiring kit. Box is around 4.6 cuft with port and sub displacement. It is in an extended cab pickup. So is port length right? or did i fuke it up? Thanks [/QUOTE]

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