Turning off tube preamp first sends solid state amp into protection?

Thanks guys. Small correction to my post: When pushing the standby button on the amp to the standby position there is a tiny pop from the speakers and a click within the amp. Turning the pre-amp off first (I don't do it anymore) makes a loud pop in the speakers.

I'm glad this came up. I'm a newbie at this. I have an AR LS-16 (tube) and a SS Proceed HPA2 amp.

The pre-amp has a 45 second warm-up timer before anything will function.

The amp has two buttons. A tiny off/on button and a large large round 'standby' button.

When I turn the system on I turn the LS pre-amp on first then immediately turn on the amp which stays in standby mode until you hit the standby button. The are no audible clicks on pops through the speakers but you can hear clicks in both components.

When I turn the system off, I put the amp in standby then turn it off. Then I turn the LS pre-amp off. This way there are no audible clicks from the speakers.

Does this sound right?

harrylavo, thank you. I wouldn't call myself a 'green' person but I am not wasteful. If the power consumption is low (manual says 150W...which means nothing to me) I'll certainly leave it on standby. Plus, the power button is tiny and out of the way. The 'standby' button is huge.