I'm not sure what "full" sound is. More bass? Wide dispersion? Small monitors with well integrated subs can sound plenty "full". Timing issues regarding when the sound pressure hits your ears are a tough argument for me to swallow. Separate subs that can be moved around can even be an advantage in cancelling room resonances. The lower frequencies are fairly non-directional as the longer frequencies pressurize the entire room. The mid and high frequencies, which are more directional (the sound pressure from the drivers hits your ear before the reflected frequencies) are coming from the same size drivers as a bigger speaker. Big speakers are, well, bigger, and have the potential to be louder. Small speakers are easier to integrate into a room, will likely create more stable stereo imaging, and are probably going to be loud enough. If you have a big room, and like loud music, get bigger speakers.
The Magicos are great. They will sound better than your LS50s. You will probably want to invest in some acoustical room treatments, or DSP, to tame the room resonance frequencies.
The Magicos are great. They will sound better than your LS50s. You will probably want to invest in some acoustical room treatments, or DSP, to tame the room resonance frequencies.