subs that do well in 4th orders

[Lschevelle 10+ year member]

I know every sub dont do very well in fourth orders , so what are some subs that will do very good in a fourth order? just to throw it out there,I see some people that are somewhat quiet then on the other hand i see some people with two subs that have the whole vehicle flexing. I know box design play a big part also

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[Keith H 10+ year member]

Usually subs with a low fs and high qts work best.

 

[bbeljefe]

Low EBP subs perform better in sealed alignments such as 4th order boxes. To find EBP, divide Fs by Qes.

Subs with an EBP below 50 are considered low, those from 50-90 are mid and those above 90 are high.

And yes, box design is a huge part of the equation.