The slight irony here, given the fact I kicked off this thread, is that the Phoenix arrived three days ago and to get it up and running I plugged in the only USB I had to hand:. an Amazon Basics.
And it sounds fantastic! Compared to the Zenith alone, it's a wonderfully sound. Just perfect almost. It has lost all the glare, and forceful forwardness. The icy shards have melted.
It might be that the Phoenix has made every digital component upstream of it redundant. Then again, maybe not.