SYT SUPER SOM JUNDIAIDB DRIVE A4 1800D AMPLIFIER 1 X 1800W EM 1 OHM(novo similar acima de R$ 2.200,00, U$ 400, lá fora!!)Db Drive A4 1800D Amplifier 1 X 1800W @ 1 Class Ab Circuitry Audiophile Grade Components High-Efficiency Mosfet Design Fully Variable Front & Rear High Pass/Low Pass Crossover Convenient 1-Side Connections Fan Forced Cooling Electronic Dc, Offset & Thermal Protection Bridgeable Includes Bass Remote 1 X 1,800W @ 1_