Congratulation to you too Itzoros.
From my experience so far with the E-550 amp, whether or not the E-560 has enough power to drive your speakers depends mostly on the type of music you are listening and on how loud you like to listen to your music. I have found that the E-550 amp never run out of steam when playing rock music, e.g. Metallica, Dream Theatre, Rush, etc.. For some reason this music is recorded much louder than the rest of the music. When listening such music, I find the sound level to be good to almost loud when the meter indicators of my E-550 are around -30 dB (at -20 dB the music is way to loud). Clearly, as this music has almost no dynamic variations, the E-550 will never run out of steam. However, when listening to orchestra music the E-550 can run out of power. In my room, for good levels when listening to orchestra music the meters indicators should be around -20 dB, i.e. you will have 20 dB for dynamic variation, which should be enough in most of the cases. However, this will not be the case anymore if you want to listen at louder volumes.
I should also mentioned that in my experience the room size is not the most important factor. For example, in the dealers room I was able to make the E-550 (driving my Focal Micro Be) to clip by playing Loreen McKennitt (!). That is, the meter indicators went into the red area (above 0 dB) for fractions of a second, when Loreena was rising her voice while her entire band was playing. The dealer's room is approximatively 4.5 x 3.5 meters. At home, on the other hand, were I use the Micro Be speakers together with a REL Stentor 3, this has never happened. My room is 4 x 7 meters and I am listening along the smaller side. I should mentioned that in the dealer's room I was sitting further from the speakers than I do at home, i.e. 3 vs. 2.5 meters.
Finally, I should also tell you that in the dealer's room I have compared my Micros to the Wilson Sophia 2. On paper the Sophias have the same efficiency as the Micros, i.e. 89dB. The E-550 had absolutely no problem to drive the Sophias, the room was filled with well controlled and very low bass. Also, when driving the Sophias clipping did not occur earlier then it did when driving the Micros. However, the E-550 became hotter. Thus, since on paper your future speakers are more efficient than the Sophias. i.e. 92 vs 89 dB, I would say that the E-550\560 amp should have no problem driving them. But, as one can never be sure do not go for the E-560 without actually driving the Scalas with it.
Hope this has helped.
