The DV-59avi may very well have better DAC's, but I'd still suggest connecting via digital as well. First, the 1070 has a more sophisticated DSP section, so processing modes such as PLII/IIx are going to work best with a digital connection to the 1070 - potentially to the degree that it works better than the difference in DAC's, particularly if you are also going to use crossover points other than 80Hz to fine-tune your speaker/sub integration. When you do use the multichannel analog connection, I'd tend to recommend using the "HLF/LPF" setting and disabling any bass management in your player.