If anyone could chime in about my box to see if its good or not...would be appreciated. internal net volume is 2.163 the port is a slot port and when it comes into the equation my volume turns into 1.938...as to why it gets lower im not sure. The port measures as follows W=13.5" H=2.5" D=11.5" Comes out to a volume of 388.125 Inches 3 seems weird???? What would this box be tuned to????? Help please guys.