They are also sold by a US distributor under the 'Kavent' brand name.
The Kavent line, at least as we know it, has been discontinued and new models, mor e"tubes" are going to be introduced. To my knowledge, there are no more Kavent components available from the distributor.
I was a dealer for the Kavent gear and found it's build quality very impressive for the money. I still have one of their A-210 Integrated Hybrid amps available.
Impressive gear but I think the Vincent line, now manufactured in a seperate facility, had something to do with Kavent going by the wayside.