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<blockquote data-quote="subzero" data-source="post: 7486388" data-attributes="member: 600350">OK, check it out.I went back to my old box because the new one was too big.&nbsp;&nbsp; In my car, for my application, the smaller box worked best.So, my smaller box is a slot port tunned to 43hz, .&nbsp; &nbsp; My subs have a 1cube displacment combined so and the port also increases the displacment.&nbsp; &nbsp; so lets say 1.5 cubes displacment, leaves me with a 3 cube box, and the 43hz tunning.&nbsp;&nbsp; Now, sometimes I like to hear and feel the low lows,&nbsp; The fix is simple for me,&nbsp; My port is 5.5inches wide, 14.25 long.&nbsp; So I add 1 1/2 inch baffle to eat up port space, and thus making the tunning lower around 36hz.&nbsp; and it also&nbsp; on a personal note, the port pressure on the low tune is actually helping my subs handle more power and getting louder on the low side.&nbsp; THese subs are natural low end monsters since they have a 40mm xmax and a 4 inch coil capable of 5kw +&nbsp; and they have extreamely stiff susspension.For other subs and boxes, it might not be the same.</blockquote>

[QUOTE="subzero, post: 7486388, member: 600350"] OK, check it out. I went back to my old box because the new one was too big. In my car, for my application, the smaller box worked best. So, my smaller box is a slot port tunned to 43hz, . My subs have a 1cube displacment combined so and the port also increases the displacment. so lets say 1.5 cubes displacment, leaves me with a 3 cube box, and the 43hz tunning. Now, sometimes I like to hear and feel the low lows, The fix is simple for me, My port is 5.5inches wide, 14.25 long. So I add 1 1/2 inch baffle to eat up port space, and thus making the tunning lower around 36hz. and it also on a personal note, the port pressure on the low tune is actually helping my subs handle more power and getting louder on the low side. THese subs are natural low end monsters since they have a 40mm xmax and a 4 inch coil capable of 5kw + and they have extreamely stiff susspension. For other subs and boxes, it might not be the same. [/QUOTE]

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