Sound quality of LM1875 and TDA7850

The distortion of 1875 is obviously small. The 7850 is a 4-channel chip with a maximum power of 50w per channel. The 12v power supply pre-amplifier uses NE5532 LM1875 and the car engine 7388TDA7850A. It only considers the tone and not the power. For example, compared with the lm1875 , lm3886, tda1521, etc., are they good or bad. I have a Subaru single-disc LM1875 that has a powerful sound when powered by plus or minus 25 volts. It generates a lot of heat but will not burn out. The prerequisite is that it must be a genuine national semi-authentic product. The fake one does not have a tda2022 amplifier, and the lm1875 amplifier board and The main differences between lm3886tf are as follows: 1. Different output power 1. lm1875: The output power is 20W. 2. lm3886: continuous output power 68W. 2. Different sound quality characteristics 1. lm1875