Kicker 10C104 For Chevy Silverado Ext Cab '99-06 Dual Sub Package Box Amp Wire MAX Power Handling: 300 Watts per Sub (600 Watts per PAIR) RMS Power Handling: 150 Watts per Sub (300 Watts per PAIR) Impedance: Single 4 Ohm Sensitivity: 86.2 dB Frequency Response: 30 500 Hz