Solved! Receiver OHM for speaker OHM

Feb 4, 2019
My Yamaha RX-V371 receiver can be set at 6 or 8 OHM. Is it safe to connect two Pioneer Elite SP-EBS73 speakers to it, & if it is, should I set the receiver at 6 or 8 OHM? (I live in a high rise which was wired in the 1980’s). I don’t know an OHM from a flower pot, (but I don’t need or want to become an expert), so I would appreciate a very, very simple & brief answer. (Something like “you need a 4 OHM receiver”)
Speakers are 4 ohms which is not safe to use with that receiver.
If you have to do so you can wire a 2-3 ohm 20 watt non inductive resistor in series with the plus wire going from the receiver to the speaker.