I spent a lot of time in Stockholm back in the mid-90's for work- really enjoyed the culture, the food, the people. The old town was wonderful and there was also a "hot dog" stand not far from the opera house that had great dogs. Been quite a while, but I still stay in touch with my colleague there. Enjoy the speakers.
I use 15 inch subs, dsp'd with my Duos. Makes a big difference.