HERTZ&reg; DCX 100.3 4" Dieci Series Car Stereo Coaxial Speakers (DCX100.3) DCX 100.3 - Hertz 4" 2-Way 60W RMS DIECI Series Coaxial Speakers Power Handling: Peak: 120 watts per pair / 60 watts each | RMS: 60 watts per pair / 30 watts each Neodymium tweeter with PEI dome, for compactness and energy at high frequencies Large motor assembly for mobile voice coil control Mounting Depth: 1.7"