I'd run both the six-channel analog audio and a digital audio to the 1070 - this will let you get DVD-Audio and SACD (which need the six-channel) while still using the 1070's processing (Dolby EX, DTS ES, Pro Logic IIx, DTS NEO:6, quad crossover) for DVD-Video. I'd probably also set the universal player up so that it applied no bass management to the analog output (all speakers large, subwoofer on) and then compare both the "DIGITAL" and "HPF/LPF" options for bass management on the 7.1 direct input.