You can technically use any ohm speaker you wish, but you'll run the risk of damage to the speaker if you connect it to this receiver.
If you absolutely must use them (because you can't afford a new set or for other reasons) then I suggest you hook them up with receiver off and keep volume all the way down, then SLOWLY turn volume up to comfortable listening level. The moment you hear any distortion or popping, turn the volume down and if any noise continues, turn the receiver off and don't use those speakers