Anyone Own The PMC TLE1 Subwoofer?

I would appreciate if anyone who owns this sub would care to share if better results are obtained when running the sub full-range or low-passing the sub using the crossover feature of the TLE1 itself. I would also like to know if the sub is placed at the corner of the room or clear from wall boundaries in between the speakers.

The placement of my sub is in between speakers and currently running at full-range. I am curious to know if anybody had their TLE1's low-passed, and if yes at what frequency.

Any response or advice would be most appreciated.