Fabien, when my friend worked at the high end shop, I set-up and delivered lots of systems. The Bryston stuff is pretty neutral with everything I've heard. I met another friend who lives up the road from me who used that electronics combo and he has a avg. to small size room and uses Thiel 2.4s and a Thiel SCS3 center. It's all about tastes and listening habits (e.g. type of music - like it loud, like it soft, etc.). My friend who worked at the store has that electronics combo and uses Vienna Acoustics speakers.
If I've converted your measurements properly, you need the fronts to be around 12 inches wide and under and your room is about 430 square ft. Sorry, but I grew up being taught non-metric measurements. How big is the room (length, width, height) and where will the speakers be positioned (long wall, short wall, etc.)? What is your speaker budget.
I use a 1.7 along with a 14BSST and a 6BSST. My room is very large, opens in other spaces and has a 19 ft. ceiling (about 6m). I use Thiel 7.2s so I need the power. I've found the Vienna Acoustics line in general to be very easy to drive vs. other things and many of their speakers have narrow foot prints. Here in the US, they are distributed by
http://www.sumikoaudio.net/ Depending on your budget, you may want to check them out. B&W is another brand that makes speakers with narrow foot prints too. There are lots of others.
