Okay I have 4 12's in a ported box. The box has two slot ports that are each 3" height, 25" long and 14 inches deep. I can only play 40hz all the way up to 60hz.... I want lows. 57hz is the loudest. I really want my tuning to be 32hz. Can someone please tell me how I could lower the tuning for them. Subs are 4 CT sound tropo version 2 12's. Box is about 11 cubes.*
It won't let me upload a pic. Each port is that measurement that I gave. There's two ports for each of 2 subs. Inside the box the ports are almost touching the rear of the boxes wall. I want a tuning of 32 hz. Would I need to take some port away?
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