Description Zeroflex EFX4.500 4 X 50RMS or 2 X 160RMS @4Ohm Micro Amplifier 4 x 50rms @ 1ohm 14.4V 0.1% THD 4 x 80rms @ 2ohm 14.4V 0.1% THD 2 x 160rms @ 4ohm 14.4V 0.1% THD