I'm always confused by the love of Topping. They are so meh... maybe measuring well but sound like a cellphone dac. (well.. not that bad, but close.)
at the price point the modius is pretty amazing. But if you are happy with the D70, then that is all that matters. Don't listen to the internet.
TV: LG OLED77C9 | Receiver Denon X8500H | AMP: PrimaLuna EVO 400 | Speakers: ELAC Vela FS407.2, CC401.2, BS403.2, Carina BS243.4, 2x SVS SB-3000
HTPC: i9-10980XE @ 5.0ghz, DDR4 32gigs, Intel Optane 960gb x2, Nvidia 2080 ti (SLI)
Sources:Oppo UDP-203,Tivo Bolt+,Xbox One X,PlayStation 4 Pro,Switch,Bluesound node 2i
CalMan Enthusiast, SpectraCal C6-HDR, VideoForge Pro | Control: Logitech Harmony Elite