4) NEW BOSS AUDIO P65.4C 6.5" 4-Way 800W Car Audio Coaxial Speakers Stereo P654C NEW BOSS PHANTOM P65.4C 6.5" 800 WATT 4-WAY CAR SPEAKERS (4 Speakers) 400 Watt MAX (800 Watt Total) Impedance: 4 Ohm Frequency Response: 60Hz-20kHz SPL: 94 dB