DACs and Upscalers used in various receivers

[richteer]

Hi all,

I'm drawing up a list of specs for receivers I'm considering, and part of that info is the audio DACs used and the video upscaler. After a lot of digging (thanks Google!) I've found most of what I need, but I was hoping people here could help me fill in the missing gaps, ideally with model numbers.

Here are the receivers I'm missing the DAC info for:
Pioneer Elite VSX-91TXH
Pioneer Elite VSX-92TXH
Pioneer Elite VSX-94TXH
Marantz SR7002
Marantz SR8002
Yamaha RXV-1800 (I have Burr Brown, but which one? The 1791 or the 1796? Something else?)
Yamaha RXV-3800 Same as the 1800

Here are the receivers I'm missing the upscaler info for (my research suggests that these have no upscaler, but I'd like that to be confirmed):
Pioneer Elite VSX-91TXH
Marantz SR7002
Marantz SR8002

Many thanks!