Hey guys I am a real noob at circuit designing. Here is an amplifier circuit I put together for a center channel subwoofer of a 2.1-channel USB-powered speaker system that I am planning to build. I basically made this circuit by binge-watching YouTube videos and following the IC's datasheet. Now I am in great confusion about the order of the sections labeled 1,2,3 in the image. Should the low pass go before the high pass or the preamp should go after the high and low pass, I don't know! Please help me out with it and please take a look at the circuit design for any flaws. I greatly appreciate any feedback you share.