Hi everyone. I am thinking about buying an A2 version of this DAC. I used to own Bifrost Multibit for a couple of years, upgraded it to Gen5 USB and then sold it when Modi 3 got released. I liked the Bifrost Multibit and the only downside it had was relatively high noise floor which could only be heard if I turned my amp up past my normal listening levels. I enjoyed my Modi 3 a lot but experienced some mild RFI with it and eventually moved onto the Topping D50 that I currently own. It is a good-sounding and good-measuring DAC. However, I can't shake the feeling that it leaves me a little underwhelmed and unexcited. I am combining it with the Atom amp, so I am wondering if that could be the culprit. The combination is super-clean sounding with great resolution and slam but I rarely get lost in the music for some reason. I have a couple of questions: 1. Has anyone tried the Atom with the A2 Bifrost Mulltibit? Do they combine well? What other amp works well with it? I would prefer avoiding tube amps as I am sensitive to low-level hum most of them produce. I used to own the original Vali 2 which had a low level hum in high gain mode for example. 2. Is there a significant difference between the original Bifrost Multibit with Gen 5 and the A2 revision? 3. When comparing the Modi Multibit to the A2 Bifrost Multibit using the USB input, what are the main differences. Any input will be helpful in making my decision.