Kicker 45KM42C KM 4" 2 Ohm Coaxial Car Amplifiers (2) Hex nut M3 x

(2) Hex nut M3 x 0

accurate midrange

Tweeter Dynamic Power Handling 300 Watts Tweeter Nominal Power Handling 125 Watts Midrange Dynamic Power Handling 400 Watts Midrange Nominal Power Handling 150 Watts Frequency Response 135Hz - 20KHz Impedance 4

CTA-2006 Compliant Yes Number of Channels 4 Total Power (Sum of Rated Power) 800 Watts Rated Power (RMS Continuous Power) 100 Watts x 4 @ 4Ω   100 Watts x 4 @ 2Ω   200 Watts x 2 @ 4Ω Bridged/Mono Dynamic Power (PVC/PowerCube®) 125 Watts x 4 @ 4Ω   200 Watts x 4 @ 2Ω   400 Watts x 2 @ 4Ω Bridged/Mono Bridgeable Yes Frequency Response 10 Hz - 50 kHz Input Sensitivity 150 mVrms - 12 Vrms Circuit Topology Class Class-AD Efficiency (average) >75% Total Harmonic Distortion (THD+Noise) <0

but adds an easy to use app for tuning from Apple and Android devices

Kicker 45KM42C KM 4" 2 Ohm Coaxial Car Amplifiers (2) Hex nut M3 xMARINE MARVELS Our speakers are made to thrive in the water. UV treatments on injection molded cones, Santoprene surrounds, baskets and grilles all help maintain top shelf performance. KM speakers will endure almost any weather conditions with splash and spray resistant sealed motors and locking sealed terminal covers. Speaker hardware is forged from rustproof, 316L stainless steel. Two Ohm Voice Coil 1 2 Inch PEI Tweeter Locking Sealed Terminal