Complete Kit with dual 225 watt amps and front and rear XL Series speakers Includes 57 metal mesh front speaker grills and RG Specific mounting plates for both amps Speakers feature carbon fiber woofer cones and studio grade crossover parts Amplifiers Features R.E.M.I.T. circuitry for excellent FM reception from a Class D amp Works with factory radio or popular aftermarket plug & play radios No crossover, gain, or EQ adjustments make installation very easy All required plug and play wiring and mounting hardware to complete the installation is included. AMP/SPEAKER KIT RG XL450W