What are the response numbers for your speakers? That is the most important thing. Your speakers should actualy be set to small in about 90% of all cases. If setting them to large seems to sound better, then something else is not setup correctly, most likely the crossover. You should set the crossover as low as your speakers can handle so that the sub is only working on the lowest content and your midrange remains mostly in the speakers and is not being passed to the sub. Next would be placement within the room, the room size and your seating position relative to the speakers as well as getting them calibrated to the correct levels with an SPL meter.
Just because a manufacturer is well known in music doesn't mean the home equipment they make is going to be great, because one hand doesn't necessarily know what the other is doing.