Oh, no, the E70 I have is the one with the ESS 9028pro chip; I spent the huge sum of $349 on it! The $600 was a reference to my Pro-Ject Stream Box S2 Ultra; it normally sells for $899; I misspoke, as I got it open box for $699, not $600. I may upgrade from the Topping at some point, but it’s not a priority, as it’s part of my vintage system, which is very vinyl-centric.
The Okto is the Czech-made DAC in my family room system; if memory serves, I paid about $1,200 for it, and installed a Pi in it myself, as they were experiencing supply chain issues at the time. All of my systems are posted, with pix, on my systems page.