@no_regrets I haven't A/B'd them within the same system components, and I'm my listening 90% of the time listen to the Aero with the Z10E and headphones.
Secondly I've only used 6SN7 tubes, not the LTA 12SN7.
The Tambaqui is very different, and more discerning, but the one immediate compliment to the Aero is it's solidity, and weightly presentation. Notes have more heft and presence, and that comes across very well with the Aero.
I never set out to compare them, I did compare the Cen.Grand DSD Deluxe DAC closely to the Aero and I feel those 2 DAC's despite their FPGA vs R2R differences they're very similar and enjoyable (4k vs 6.5k).
CEN.Grand with a touch more detail, but the Aero with Tungsols 6SN7 much more space, depth and holographic presentation. I feel these qualities are easily more noticable, then say degrees of detail, and the wow factor comes a little quicker with the Aero, where the Cen.DSD is a very smooth and detailed DAC, that's a long slow burn. You might find yourself listening longer to the Cen, but raising your eyebrows more while you smile with the Aero.
Hope this helps.