Question regarding pre-amp and amp


Hello everyone,
I recently bought Don Sachs pre-amp and have a solid state amp. While switching off the preamp it gives a huge sound if the amp is on. I checked with Don and as per him I should switch off the amp before I switch of preamp and switch on the preamp before switching on the amp. The solid state amp has a switch at the back and I don’t think it’s made to switch on and off on a regular basis. How is this normally managed? I am sure tube preamp will need to be switched off and few of you might have this issue.

Appreciate your inputs. Thank you!
sudharl
@sgreg1 having a tube preamp, I don’t think it will be a good idea to leave it on. With the solid state I never turned it off until now and now I am having to do it because of tube.

@bob540 how did you achieve the triggering?
My tube pre amp the Freya + allows for me to turn the tube stage off while keeping the pre amp on and that is the procedure I follow.
@sgreg1, I know there are multiple like that. But not my preamp. It’s a very good preamp and wanted to see what options I might have.