Re: ported box question
the larger the port opening, the longer it needs to be to maintain the same tuning. the tuning is adjusted by the length, not the opening (area). the port area can be too small and cause turbulance, or port noise, or too large to cause the sub to act if it were in a free air environment...need to find a happy medium.
2006 Jeep Liberty
Adire Audio, Cadence, Clarion, MB Quart
Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
*Vb = vol. in cu"
**R = sq.rt. A / Pi (for square/slot port)