Headphone amp and DAC quality: for the price, it’s brilliant. In more absolute terms, I’d call it ‘pretty decent’.
The Pi does have a 100Mbit Ethernet port.
When it comes to the OS, you have a few choices. You can use IQAudio’s image (which is RoonReady and ready-to-run) or use DietPI, allowing you to install RoonBridge and a specific audio kernel for PCM up to 384.
Pardon me for jumping in, but as far as I’m concerned, the answer is “yes” to all three questions. Now I grant you that my ears may not be as golden as yours - after all, I’m the guy who can’t distinguish between this setup and a microRendu driving a Dragonfly v1.2.
Don’t know the answer to your first question but if you only want to connect direct to speakers and forgo the headphone and RCA outs the DigiAmp+ bundle is all you need. In any case either is fine for that sort of usage. In fact many have found this bundle to suit their needs totally.
That looks really nice from what I could understand of the info on the page. Do you know if they can send these outside NL? Seems weird not to have the website available in english, and makes me slightly wary to get one if I would need support, but seems the software is in english so I guess it should be ok.
I was looking at the full package only as it could gave me all choices in the future if I wanted, but as you say the low package would probably meet my needs. Will most likely only use it attached to my AVR (outside Pergola) as another zone, but could give it to my son to try as well.
Lots of great suggestions here. Again, thanks to everyone for responding to my question–and to the others who seem to have the same needs as I. I’m heading to Canada from Brasil at the end of March, so it’s almost time to shop. Most of these things aren’t available in here Brasil, and those that are cost the usual 2x to 3x the North American price (including the lowly Pi)…