I was told by the distributor of the Tambaqui that the Aries G2.1 is a better source than using its built in function. I have compared my Aries to Lumin U1, Aurender (N100 which I owned), Node 2i (which I own in another system) and Simaudio’s Mind2 built into their 680 DAC and, to my ears (and the dealers showing the other gear), the Auralic was better. It’s a good unit. I feel even more so than the DAC.
To the OP and others, I will note also that Auralic has taken a different approach to system building. I originally purchased the Aries and used a nice USB cable into my DAC. But, I started to explore upgrading DACs and ended up purchasing the Vega G2.1. I originally connected them via USB but tried their stock lightning link connection which allows the units to share resources. The Vega is a good DAC via USB. However, It’s a very good DAC when connected to the Aries via LL. Or, is it that the Aries is a better streamer when connected to the DAC via LL? I don’t know. BTW - nice improvement was gained when trying better lightning link cables. Again - I was skeptical. Easily heard improvement.
I recently purchased the Sirius upsampling processor and put it in system via LL. I was skeptical having tried Roon upsampling and found it wanting. But, reviews were good on the Sirius. Resources are again shared. It’s taken my digital front end up another level. Auralic’s approach can lead you down the path of one manufacturer. But, I have to say it really works well. I have more invested in my front end than I even thought I would but having compared it directly to an even more expensive front ends, I find it to be good value.
Yes - how you serve your DAC matters. Greatly.
My $.02.