Hifonics BRX320.4 Brutus Vehicle Multi-Channel Amplifier Molded and angled ILLUMINATED Terminals for stress free installation access. Accu-Cross crossovers and adjustments for sound shaping. Ultra-Fi MOSFETS NGSD Next Generation Super D-Class for extremely efficient system. 4 x 40 @ 4 Ohm, 4 x 80 @ 2 Ohm, 2 x 160 WATTS @ 4 Ohms Bridged