Personally for the setting:
- At the level of the amp: Library spent in "small" cut-off frequency to 110 (Library requires)
- In the box: max cutoff frequency (that is the amp that handles), volume 1/4 (start to a minimum and gradually climb up to "hear" the subwoofer)
The finish is good, you end up with material that breathes quality.
Bought 185 in December 2014. A quality / price unmatched!
Beware dimensions! 30cm to accommodate the membrane, the beast takes up space ... :)