So I have one more device to mention, which is a pro ADC that I currently own, and which has way more bells and whistles than anyone here wants or needs: the Radio Design Labs (RDL) HR-ADC1 (
https://rdlnet.com/product/hr-adc1/). At the moment, You can find it on Amazon at
https://a.co/d/irwKspS for just under $1,000. I got one on eBay for $250, which is a very good price, but I don't think anyone here is looking for this kind of equipment. It's not exactly user-friendly unless you're an audio engineer (I'm not), and is totally unnecessary for anything you'd want the PocketADC for.
I got it a year ago to digitize my record collection (about 3,000 vinyl discs in very good to excellent condition). As you surely know, it's not like ripping a CD at 24x playback speed, you have to do it in real time. So if you've guessed that I haven't finished after a year, you'd be correct. I'd like to say that it's a labor of love, but the love wore off a while ago and it's now just a chore to be done when time and mood permit.