Hi, I have 4 year old Panasonic Mini System... an SA-AK18.

I recently discovered some older West German (yep, that old) speakers
sitting in the basement. My parents used to use them with their old
component system (and I remember them sounding good), but have since
upgraded their audio system. So, I potentially have two better
speakers at my disposal.

Now, I was wondering if it would be safe (ie. wouldn't screw up my
minisystem) for me to use these better speakers? The speakers my
system is currently using run at 6 ohms, and the ones sitting in the
basement run at 4 ohms. I'll gladly provide any other information, if
it helps.