Hi, I have Sony 1040 AV Reciever And Q Acoustics 7000i 5.1 setup The NEW Q Acoustics 7000i Series Center , Front , Rear speakers all have Frequency response 95Hz - 20KHz Subwoofer has Frequency response 30 Hz - 220 Hz What is the best Crossover setting to use on all of these? AUto cal suggests...