The JVC KS-AX4302 is a compact Class AB car amplifier that features a Pulse Width Modulated regulated MOS-FET power supply and thermal, short-circuit, overload, and DC-offset protection circuitry. The second of three JVC KS-AX amplifiers, the KS-AX4302 is an upgrade from the JVC KS-AX3002 in that it offers an improved power output of 600w (versus 370w) and a superior sensitivity of 80dB (versus 76dB), not to mention a variable bass boost control, a variable speaker input control, and a variable RCA input level control.