Originally Posted by SME
The direction probably won't make much of a difference, but it doesn't hurt to try it each way.
Cone direction will make a difference on how tight the bass is. When I had my Velodyne CHT-12, I had to face the driver into the corner to get enough (it still was not enough) bass to work with the rest of my system. The tradeoff was volume vs precision.
With a bigger and better sub, I would keep the cone out of the corner and enjoy the better sound.
You can try both ways and see what you think.