Hi Marshall team,

so now I know I can use my origin 20 head without any cabinet connected, taking the sound from the DI out. 

But my question is...can I use it with the master volume at 6-7 (1-2 o'clock), to get tube breakup point and creamy sound, like I usually do when the head is connected (through an attenuator) to the cabinet? 

Is it safe to crank the volume (max 6-7) when using just the internal dummy load? 

Please let me know, THANKS