Hifonics HFEQ-2 1/2-DIN 4-Band Pre-Amp Equalizer w/ Front/Rear Active CrossoverBRAND NEW HIFONICS HFEQ 2 1 2 DIN 4 Band Pre Amp Equalizer w Front Rear Active Crossover Key Features: DIN, 4 band, pre amp EQ with front rear active crossover Audio input selector for switching between the head unit and another source Input level controls for both car radio and any media device to ensure identical volume levels Master volume control of the SPL level for both sound sources Front to rear dual amp fader 2 audio inputs with level