When doing a flared port box, is tuning going to be affected if the box isn't a rectangle? I only ask because the box I've been designing for my car is shaped like this as of right now:
After calculating it, my volume is 2.2ft^3 after taking out the port displacement(2 - 2" flared ports that are 8.3" long). It's tuned to 29hz.
So basically what I'm asking is if I just wasted my time doing this? Are these frequency numbers inaccurate or if this design will just flat out not work because it isn't a normal rectangle?