I have decided today to remake a box for my hdc315....
Nothing special but I have tuned this one a little different, carpet it, etc.
Anyway box is 3.1 cu ft
tuned to 40
with 36.25 port area( may be a little small, but we will see)
here is my first day of work.... I only got this far bc my friend who was bringing the carpet got held up helping another friend on a install