JL Audio 300/4V2 Car Audio 4-Channel Amplifier 300 Watts Class A/B Four-Channel Full-Range Amplifier Absolute Symmetry&trade; Class A/B Circuit Differential-Balanced Input Topology: 2 pair of inputs On-board Crossover: Fully-variable (50 Hz - 5 kHz), selectable-slope / mode (12 or 24 dB / octave, LP or HP) for each pair of channels Speaker output connections: Accept up to 8 AWG wire