JL Audio C1-400X 4-inch (100 mm) Coaxial / Auto speakers / Luidsprekers / Dashboard

Continuous power handling (RMS) : 35 W Recommended amplifier power (RMS) : 10 - 50 W / Ch. System efficiency : 84.5 dB at 1 W / 1 m Nominal system impedance : 4 Ω System frequency response : 64 Hz - 24 KHz ± 3 dB Frame outer diameter (A) : 4.03 inch / 102 mm Outside diameter of grille channel (B) : N/A Motor outer diameter (C) : 2.33 inch / 59 mm Front coaxial tweeter projection (D) : 16 mm (0.61 inch) Front grille projection (E) : N/A Mounting hole diameter (F) : 94 mm / 3.70 inches Installation depth (G) : 46 mm (1.81 inch)