Feedback from Trinidad and Tobago client: " FP20000Q very powerful and makes dual RCF\u0027s 18"s sound great! Very happy with my purchase. Thanks again"▼ Look! Different design panel of FP20000Q is working. Sinbosen FP20000Q amplifier is a small size, light weight and high efficiency, high power and high reliability. Both mobile and fixed installation performance are the best choices for you.2250 W x 4 ch @8Ω4000 W x 4 ch @4Ω It is equal to double FP14000 amplifiers, which is suit for 4 units dual 18-inch subwoofers.Christmas is coming soon, contact us for the best price.