Yes, this is common on platforms like Tidal, Spotify, and Qobuz. Some weeks are just slow, especially outside of major release cycles or label promotions.
I think that makes sense. Because using two wavelets allows it to independently optimize the main and subwoofer channels. So the improved integration and timing that you hear is exactly what you would expect from such a configuration.
Yes. You can of course do a demo by disconnecting each cable from the Altair. Since the effect is instantaneous, there is no noticeable delay. The Shunyata demos are similar, so turn the ground on and off to hear the difference.
They are essentially the same thing. Because the 1007 is just a newer version that fits a thicker cable. Based on that, there is no significant difference in sound, just choose the one that fits your wire.
In that case, perhaps moving to the Grandioso C‑01 Solo will provide a more noticeable improvement in overall musicality than simply moving from the K‑01‑XD to its SE version.