I have a single 10" sub that says the "Optimal" Cu. Ft. Volume is 0.65 .... (but I did read this sub will work fine in a range from 0.45 to 1.0).
My box is a custom downfiring enclosure that is 0.95 cu. ft. volume.
I know this sub will sound fine either way but I did read somewhere that some polyfill helps with variances in box sizes like this.
Should I put polyfill in the box or just leave it as is?
Thanks so much for the info.