If there's anything to worry about, i would imaginge it's that your not pumping much wattage to these things. thus the louder you try and crank it the more potential there is for distortion and blowing. I have a 200watt per chanel B&K AMP matched to RF3II's. I had a DVD cranked last weekend to +6 decibles. let me assure you that it was really damn loud. The RF3's cranked right along. Man....it was so loud and full sounding it felt like i was there. the other 20 people who were cramed in my living room felt the same way. So if you wanna crank tunes loud, i recomend more power. have fun!