Mmm....a new SKU for the amp-only CDM, not to replace but to offer an option for those who do not need an integrated amp/dac portable. In my case, I use the cdm for its amp, most of the time. If the impression of the WA8/HD 800S holds true for the other big cans like the T1.2 HE1K, I'd be very happy with this future purchase as it gives me a tube-based amp for on-the-go big can listening. It doubles the utility of my headphones. Not that I am unhappy with SS portable amps (mass kobo 404 and pure 2 plus are my favorites) but tube is something that I always end up going back to.