I am absolutely positive about the channel levels and read an e-mail sent to a fellow enthusiast from Pioneer cust. service that stated the crossover frequencies in the 578. This model is different from the 563 in that respect. Also, the bass is exactly 15dB low, and an ICBM will only give 9dB boost. Setting the speakers to large on this player does not send full range signals to the speakers. I don't mind this, because it sets the crossover at 80Hz which works great for me. I do mind the LFE being so low.