RF4LIFE

I've read it but a t line is too large for what I have to work with, I just want to know if anyone has used this formula for anything like a port on a reg ported box

My question is can I use it in a best of both worlds, (larger sound then a ported but smaller enclosure than a t line) or is it strictly used for T lines only

Can I use a stinging wave? Won't it be a louder box at the cost of having a larger enclosure?

I just want to know if my formula is correct? Or is it completely wrong?

I don't have any yet, once I get the port then I will make it fit

Can anyone help me figure port area and length for a 15" sub in a 5ft^3 box tuned to 33hz? I have read many different ways and "how to"s I'm just getting a little confused. I have found an 1/8 wavelength To be the best on paper but dose anybody know what they sound like? My numbers for the 15" woffer @ 33hz 82.5in^2 ((pi*r^2)/2) 51.36 inches long (1130/hz/8*12)

How many types are there? And what are the RMS of each?