Thanks for the inputs. My setup is 2CH, will mainly use the Dave as a dac only. Knowing that Dac technology changes really fast like 4-5 years cycle. The Dave is on the declining stage but still it's the price benefit for second hand market. You can find the Dave at $7000 these days, adding $3000 more you could get the TT2+M-scaler which is newer technology. but idk if the newer is better tho.