My left and right speakers are Boston Acoustics CR6's which are sealed enclosures 2-way speakers that are quite heavy for their size. I'm thinking of upgrading to a pair of Elac Debut 2.0 B5.2 speakers that are rated 6 ohms. My 18 year old Sony av receiver is rated at 100 wps at 8 ohms. Will the Elac speakers work with 100 wps or should I stay with 8 ohm speakers?