dontfeedphils
1000+ Head-Fier
First, I'm happy for the users that fit this use case for them. I truly hope it works out for them.
Second, I'm a big fan of Chord if RW is leading the project. If RW is not involved, Chord is just another high-end brand. So to me, this is just another high-end audio product. I'm not a salesman so not pushing a brand, but I'm inspired by the DAC designer.
Third, I want optical purity. Not no USB conversion complication. Why not purity? You have Chord DAC's, why wouldn't you want a pure solution? On the Rpi, the data goes straight to i2s to the optical decoder. Zero USB involvement.
For icing on the cake, I want my "Now Playing" track to load into RAM before playing. Rpi does this, I assume 2go plays off the microSD card like every other device:
AO
I can run this off a small footprint or a desktop footprint:
I can rotate Anker battery packs at will. Don't have to worry about expensive battery replacement or shipping into limbo-land.
The same components but branded and marked up can be found in other audio brands with a similar cost as the 2go:
https://www.moon-audio.com/bryston-bdp-pi-digital-player.html
One can also program a full IR remote control to navigate their music if you don't want to use a smartphone.
I try to play as close to the master source if possible, so I don't want an complications; just purity.
I believe I maxed out the Chord DAC with close to master source => pure optical => glass optical cable => Chord DAC.
This falls inline with RW optimal philosophy: Solid battery-power + pure optical...
For the best depth for your Chord DACs... pure optical... Why have more of a 2d wide sound when you can increase it's depth to something more 3d.
All this for a very reasonable cost if you are willing to spend 10 minutes on physical install and 10-20 minutes on configuration via web browser.
Zero RFI noise, Zero ground loops. Easy replacements and compat with future Chord DACs.
With a glass optical cable, you have the crispness of USB without the USB harshness. Glass optical is neutral, natural and life-like...
For my front-end I run Ipeng by a German developer:
https://apps.apple.com/us/app/ipeng/id767266886
http://penguinlovesmusic.de/ipeng-8/
1 decade of development and refinement makes for a polished product and UI.
That's my "Killer" app. Doesn't affect/manipulate SQ, just a dumb terminal like a IR remote control. Everything runs on the back-end. No silly apps that re-sample on top of Android/iOS re-sampling. No daisy-chaining apps on one another. No this app depends on this app to run this app. I don't believe Poly has a "Killer" app. Might as well have my IR remote control manipulate SQ too.
For the back-end, I run Squeezebox which a backed by a multi-billion dollar company in Logitech.
The $10k Antipodes runs Squeezebox so there is no questioning SQ:
https://antipodes.audio/squeezebox/
This has 2 decades of development and refinement.
And to ensure I get enough power bandwidth, I'm using a 'DC' power-only 5-layered shielded Gotham USB cable. No USB data.
I agree with most of what you're saying. USB is still much more than just usable though, and with a proper source can sound damn near indistinguishable from optical. Plus you're not going to get your super high sample rates without USB. A non-issue for me, but not for everyone.
Also, reports on the SQ of the Poly as a source are overwhelmingly positive and although I haven't heard it myself, I'm certainly not going to discount such an overwhelmingly positive reception.