Very good, Red; you'll have excellent sound with those four speakers and can expand later. When you run YPAO the calibration of levels and distances will probably be at least as accurate as you could do manually, so don't worry about that part(you can manually set items such as the crossover to the QS4s if you like). The equalization function is more controversial, but certainly use it at least at first. The M50s will be set "large" and will therefore automatically get any bass which might go to a sub if it was present(in your case lowest bass from the QS4s plus any LFE that might occur during movies). Since you'll set it to show no center speaker, any material which might have gone there will also automatically be directed to the mains.


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Enjoy the music, not the equipment.