Thanks for this, it’s super helpful.Size, weight are quite similar, but the buttons and volume control are very different. The 4.4 balanced output is a big plus. No SD card slot, just one microSD. No separate USB port for charging. I cannot comment on battery life differences.
Soundwise the Alpha is much closer to the Cube than OG Kann. I loved the sound of the OG Kann, which is very warm. When I got the Cube I needed several weeks to adjust to the brighter sound. I suppose it did worth it in the end, because it has more extension on top and bottom, has wider soundstage, overall cleaner sound. In addition the Alpha has velvety mids compared to the Cube.
If the upgrade worth depends on what you are driving with it and first if all your listening preferences.
I’m using the OG Kann with the new SR325x and I’m like Homer Simpson drooling when I listen to it. Was just wondering what the Alpha might add but maybe the warm OG with the 325x is a better pairing?