6 ohms impedance speakers w/ 8 ohms amp
I currently have a 10 yr. old amp (Pioneer VSX-D812) and looking at these Pioneer Floor Speakers, which are 6 ohm impedance. The manual notes w/ an 'Important' icon: "Use speakers with a nominal impedance of 8 ohms to 16 ohms". Is that a recommendation? Do you foresee any issues w/ this set-up?
Thanks for any responses and advice.