lunarlab
Ex Member
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hello...low pass is around 100 hz, my QSC crossover is old scool Pro Audio and will not cross lower. This sub is for a friend and his sub amp crossover will go down to 40 Hz so he will have to play with it untill it sounds best... I have noticed some rather unpleasant noises starting at around 110Hz'ish and higher but I think 80-90 Hz will be about perfect. I have re-designed the port opening in efferts to eliminate the port noise and I now am satisfied with the results. I rounded all the port opening to avoid turbulence..... now I can say I like the 12 inch 36x36 iversion...sounds dynamic, punchy and deep. Oh and not to mention LOUD !!! I am experimenting with different port lengths and adding more bracing to my next enclosures. I will post some pics when I have some more time...
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