well i run about 70 watts rms to them right now and they get pretty loud with no problem. A shop that sells them said they sang with 100 watts and i have run as much as 200 watts to them. The 200 was basically for headroom. If you run a lot of power they will probably have to be highpassed a bit higher to increase power handling but should be ok. If you hear them bottoming out or having trouble turn the gains down. Maybe x over up a bit.