Just got the MS Premiere Plus & a Denon AVR-1804. Reading through the Denon manual last night it states that speakers should be 6-16 ohms but the Premieres are rated at 4 ohms. Is this a problem? I'm really confused now as I thought I would be able to pair those tiny speakers with just about anything. Frightened to connect it all up, so thinking of sending the amp back. Any advice greatfully accepted.