Break in time: Pioneer SW-8MK2 Subwoofer?


Can anyone give me a sense of how long it will take to break this subwoofer in?
I've never used subs before, but since the price of these speakers is so low, I thought I'd experiment.

My monitors are Sonus Faber Liutos which are extremely well-balanced by themselves, so at this point it's much too early to tell if the Pioneer sub will be a positive addition to my system. Room is 11 x 13.

BTW, I am aware that REL is often paired with Sonus Fabers. I don't want to spend that kind of money. :)

Thanks for any helpful info.
ps
"If you can, try the sub in a bigger room. Your current room is probably too small to reproduce very low sound waves."

The listening room rear wall has a 7' opening to the much larger living room. There's also a doorway to the adjacent kitchen and a 3'x5' opening in the upper right of the wall shared with the kitchen.

After approximately 15 hours the sub is loosening up. Response is much faster than out of the box. I decided to reposition the monitors by placing them closer to the front wall (front baffles are now 34" from wall) and spacing them a bit further apart. I also reduced toe-in so that the speakers fire almost straight ahead. One other monitor tweak- I put taller brass spikes under the front of the monitor stands to tilt them up about 3 or 4 degrees.

I then centered the sub between the monitors but about 6 inches away from the front wall and replaced the factory feet with four of Herbie's fat gliders. I also experimented with phase and found that 180 works best with the monitors rather than 0.

Overall performance is greatly improved. I've got the sub crossover set at about 55 hz according to the markings on the knob. So far, so good. This is really coming together!
Over 80 hours of break-in at this point and I'm quite pleased. Subwoofer volume level is set low enough that it doesn't call attention to itself. Crossover @ 55hz seems optimum for most of my listening. I'll report back once I've got 200 hours on the sub. I'm going to continue to experiment with placement but IMO, this little, inexpensive Pioneer subwoofer is one helluva great buy, and one of the best ROI's I've ever gotten in our hobby.
Latest, and likely final update:

Once I was satisfied with the placement of a single sub- I introduced a second Pioneer sub into the system. Yes, two is better than one. I've got both units set @ 55hz and the gain dialed in at about 11:00 AM on the Pioneer volume knob.

These subwoofers satisfy my need for slight lower bass and "punch" when the source material is appropriate. I'm especially pleased that my monetary investment was so modest. Integration is essentially seamless at this point. I figure more fiddling with sub placement and a bit of room treatment will yield even better sound.

Or, maybe not. :)