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<blockquote data-quote="Kschmitz91" data-source="post: 8147832" data-attributes="member: 656170">Alright well I went ahead and built a box for my hdc3 15 with an aero port and the tuning did not sound right according to the psp port tuning tool. I designed the box to be 4.25 cu ft and I even went over my dimensions multiple times to ensure I had them right. I busted out my tape measure and sure enough, my box is at 4.95 cu ft. I don&#039;t know how I did it, I checked the volume of what the inside of the box should be multiple times before building it so I&#039;m still baffled. Currently I only have 1000w running to it, but within the next couple of weeks it&#039;ll be 2000w after I install a ho alternator and new amp. I have two questions.1.&nbsp; Should I cut the box down or just leave it at 4.95 cu ft.2.&nbsp; I only have 1 6&quot; aero port. Should I make two 6&quot; ports or change it to be a single 8&quot; port?Thanks in advance.</blockquote>

[QUOTE="Kschmitz91, post: 8147832, member: 656170"] Alright well I went ahead and built a box for my hdc3 15 with an aero port and the tuning did not sound right according to the psp port tuning tool. I designed the box to be 4.25 cu ft and I even went over my dimensions multiple times to ensure I had them right. I busted out my tape measure and sure enough, my box is at 4.95 cu ft. I don't know how I did it, I checked the volume of what the inside of the box should be multiple times before building it so I'm still baffled. Currently I only have 1000w running to it, but within the next couple of weeks it'll be 2000w after I install a ho alternator and new amp. I have two questions. 1. Should I cut the box down or just leave it at 4.95 cu ft. 2. I only have 1 6" aero port. Should I make two 6" ports or change it to be a single 8" port? Thanks in advance. [/QUOTE]

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