So I recently figured out that I can record my ENGL Fireball's dry sound by connecting my interface to the effects loop out socket on the back of the head. This way the head doesn't blow up by not having a cabinet attached and I can record the sound and then use cabinet impulses in Reaper.

Now, I have a question. I can't record on proper high volumes (can't go over the first line of the volume, I'll blow up my windows and my ears) in my bedroom. Is there a way to attach a dummy load instead of the cabinet I'm using to catch all the power that the amp sends to the cabinet, without having a cabinet attached? If so, where can I find one? Wouldn't it blow up my head anyway?

Thanks in advance!