I noticed that when I turn both of these receivers on that after a couple of seconds the protection relay activates and sound comes from the speakers as is normal. When turning off the 1050 I hear a relay click after a moment. I do not hear any relay click when I turn off the 1980. Is that normal? I've owned the 1050 since I got it new in the late 1970s. I've only owned the 1980 for about 2 years but it's always worked that way, no click when you turn it off. Thoughts?