My stereo room is 12 x 17. The NCSE has a bit more grunt to it than the smaller Leben. Both the Leben and LFD are similar in being smooth and balanced sounding across the audio spectrum. That is what attracted me most to the Leben and the NCSE, smooth and balanced while capturing and resolving nuances within a recording. In the past three years I had three tube integrated amplifiers (Jolida 502, Rouge Cronus, and the Leben) with the Leben being my favorite of the three). The NCSE was my attempt to simplify things while retaining most of what I liked in the better integrated's I heard be they tube or SS. The LFD Zero Mk III (I owned one too) was a vivacious, entrancing amp, but lacked the refinement of the NCSE.
