Agree. “What’s it doing now” is beyond my limited technical knowledge, but my understanding is that post FGPA up sampling- I use 8X- it is converted to DSD which then only requires a low pass filter on the journey to the op amps. As per my original post, the SQ of CD input via Coax has brought new life to my CD collection. I have bought a few MQA CDs from Amazon and the screen says they unfold to 24/352.KHz the same as 8 X redbook 44-1. MQA is not subjected to the FGPA upsampling. The other coax receives output from a Node, which I bought specifically for Radio Paradise’s MQA stream. The 701 unfolds this raw MQA stream to 24/44-1 and then converts it to DSD as above. The end product is an outstanding SQ for internet Radio to my ears which comfortably beats the already good RP FLAC/ALAC stream that I previously enjoyed on the NT505.
A true digital hub that delivers on whatever you throw at it. NB. Not sure that Spotify is FLAC as yet. Long overdue. I will have to ask my son-in-law about algorithms in the FGPA as alien to me as trading derivatives!
Shenzhen has closed its factories due covid. Supplies are going to get even worse imho. When I first flew to Hong Kong in the 1970s, it was a fishing town over the border. Now 25million plus beavering away at high tech products.