jl audio c1-400 x 4 2-way coaxial car audio speakers

4' 2-Way Coaxial Speakers Peak: 210 watts per pair / 105 watts each RMS: 70 watts per pair / 35 watts each Impedance: 4 Ohm Sensitivity: 87.5 dB Frequency Response: 64 Hz - 24,000 Hz +/- 3dB 3/4' Silk Dome Tweeter Mounting Depth: 1.81' (46 mm)