Your sub probably will go that high, just not with any authority, and subs really should not go so high, so it isn't a bad thing. You would actually set the sub to it's highest point on the x-over and let the player/receiver handle the x-over. Unfortunately, that does not fix your problem of the 100/200Hz x-over in the player. One option would be to set all speakers to large and then set the x-over to the point that sounds good, but this will affect anything that you are playing back digitally also, because the sub's x-over will still apply.