845 Tube Amps

Does anyone know which 845 Tube Amps are currently being produced?
Nguyen - I was very lucky to come across them used. Saved a little off the cost of new ones. I consider them a long term investment.
I have an Shuguang Classic 845 tube monoblocs. Because its high input voltage (4V), passive preamp was a challenge to keep up high volume. I may want to shop around for a used pair of Audion Black Shadow and sell the Shuguang.