4) Pioneer 4 Inch 250 Watt G Series Car Coaxial Stereo Speakers | TS-G1045R 4) Pioneer TS-G1045R 4.0" Coaxial Car Speakers RMS Power: 15 Watts (60 Watts Per Four Pack) Max Wattage: 105 Watts (420 Watts Per Four Pack) Frequency Response: 38Hz-29kHz Impedance: 4 Ohm