On the manual of the DSL1hr Vietnam its says that speaker is allowed only 16ohms.
But on the DSL1H (50th Anniv) it is mentioned it can be both 8 and 16 ohms.
Not sure if the Vietnam version can use the 8ohms as well? and it was not published on the amp or manual?
I wanted to change the power tube in my DSL1HR Head. Will it need Re Biasing ? or I can go ahead and just swap the tube and no problems it is good to go.