I understand that from Jolida it's possible to make something like VTL but than again spending on parts may not be as beneficial as simply buying used VTL.
VTL isn't the bottom line still and can be significantly upgraded and be kind-of Kora or BAT and that's where I'm standing to with my VTL MB100. From my experience most of the tube amps are very simple ecpecially SET(the oldest and the weakest design of amplifier). The complicated ones are Cary and BAT that can switch automatically their type of operation.
VTL isn't the bottom line still and can be significantly upgraded and be kind-of Kora or BAT and that's where I'm standing to with my VTL MB100. From my experience most of the tube amps are very simple ecpecially SET(the oldest and the weakest design of amplifier). The complicated ones are Cary and BAT that can switch automatically their type of operation.