I am considering buying a pair of Totem Rainmakers. My only reservation is that they are rated at 4 ohms. My Jeff Rowland Concentra Integrated Amp is rated at 100 watts @ 8 ohms and 250 watts @ 4 ohms. Does this mean that driving a 4 ohms speaker is easier than 8 ohms? (Will I get more power out of my Jeff Rowland?) A dealer told me over the phone that there is no advantage in driving a 4 ohm speaker. Will someone please clarify this for me. Thanks.