I am learning a lot here, but in some ways I regret it. I have had my Onkyo for about 2 months now and I want to start upgrading. So, I thought the first thing I could do was get some speakers. Before I did that I looked for the LARGE and SMALL setting on the receiver (Onkyo 510). I checked the documentation and could only find a reference to Sub Modes. Parameter Description Subwoofer Mode 1 The subwoofer outputs the low frequencies of all channels. Subwoofer Mode 2 The subwoofer outputs the low frequencies of the center and surround channels only. Subwoofer Mode 3 The subwoofer outputs the LFE (Low Frequency Effects) channel of 6.1 source material. Subwoofer Off The subwoofer output is off. Choose this setting if you’re not using a subwoofer, or want to turn off your subwoofer. It is some sort of control, but to me, it looks like the 510 is permanantly set to "Large." Does anybody else have any input about that? Has anybody ever upgraded their speakers and stayed with the 510? I guess I could get speakers that can handle the "large" setting. Actually, I think I would prefer that.