What is turn on/off sequence of amp and pre-amp?

Source(s), preamp, volume down, amp. To turn off, reverse procedure.

I have integrated amp with standby, using above procedure less turning on a separate power amp. The slight thunk or thump you hear is perfectly normal, at least with most integrateds with standby.

superultramega,

I generally leave the standby switch (Rogue Pharaoh) in the on or ready position all the time. I only switch it off If I am going to leave my system off for an extended period of time such as going away for a several week vacation. So to answer your question, I have it on when powering the system on or off.