Yes, but voltage is not the only thing which counts, for example the older SRM-T1 uses better parts than the SRM-006t so the new one is actually worse.
Tried the Gamma-1 with MSI Wind and it was crackling badly, I guess something with USB power wasn't quite right. No problem with other notebooks. Maybe they aren't as ideal for the job as I had first thought?
Th current lineup has the SR-404 but I didn't prefer it to the predecessor, the Lambda Nova Signature. But it might still be better than the Lambda Pro.
Another K1K popped up on a local auction site. The Hungarian Forint is still ludicrously weak so it is no more than 500 EUR (or 630 USD). The serial number is 09145. Damn, I need to sell something...