Like many people I'm considering a Qutest -> TT2 upgrade, but I'm specifically interested in the differences as a pure DAC, and when using external upsampling.
I don't have an HMS, but with my Qutest I use HQPlayer to upsample to 768Khz, which is converted to dual-BNC input with an SRC-DX. I also use an external power supply (iPower Elite), as well as various other source optimizations (optical isolation, HF filtering, etc).
Under these circumstances:
1. Because of external upsampling the difference in taps between the Qutest & TT2 should be totally irrelevant.
2. The iPower Elite is a very good power supply, and TT2's supercaps should not be any major advantage, and may even be worse.
Given that both DACs have a 10e pulse array, I'm wondering what might contribute to better performance of a TT2 in this scenario vs. a (Qutest + Anni) combination. If none, I could simply get an Anni for my Qutest instead of a TT2: a much cheaper proposition.