Hello people. I have already built several amplifiers but 200wrms up. But now I want to build one that has stereo 30w 30w or 50w 50w or so. . I have seen several tda but they do not convince me, that is from 12 to 18v and I will use pioneer speaker 4 inches, 60 70w what I get, and I want to make a small box so that the plate does not have to be very large.