This question hasn't come up in a while, possibly because so many people run all channels set to small, but it is an issue that can and does throw people off from time to time. The 950 menu appears to allow you to set crossover points for speakers whether they are set to small or large, even though a speaker that is set to large should not have any crossover applied. What the 950 is really doing is exactly what you would want it to do - when a speaker is set to large, the 950 disregards the crossover point setting and passes the signal through without altering it. You could set the crossover point for a "large" speaker to whatever you want, and it will not affect the way the 950 treats the signal for that speaker.