These are the most "natural" sounding speakers I've ever owned. The install in my 96 OBW was super easy and all required hardware was included. I left the crossovers in the small door "pockets" up front so I could adjust the treble +3/nom/-3db, but I found that the nominal setting was fine where it was. I am feeding them 75watts RMS @ 4 ohms via a 4 channel Alpine Amplifier. They are very clear, and very accurate. If you want these speakers to sing, use an outside amplifier as IMO the head unit amp just doesn't have the wattage that these speakers desire. They crank. Totally satisfied with my purchase.