4) Kicker 41DSC54 D-Series 5.25" 400 Watt 2-Way 4-Ohm Car Audio Coaxial Speakers 4) Kicker 41DSC54 D-Series 5.25" 400 Watt 4-Ohm 2-Way Car Audio Coaxial Speakers Peak: 200 watts (400W per 4-pack) RMS: 50 watts (100W per 4-pack) Thin-Profile Zero-to-Minimal Tweeter Protrusion