Tweeter's delicate 120W power amplifier circuit diagram

The biggest advantage of the power amplifier introduced in this article is that the treble is delicate. The subtle sounds of various musical instruments can be reproduced without using the microphone, but the bass is powerful and soothing. During the interval between the tracks, the cough is almost silent. It is more suitable for amateur production because it is easy to obtain materials and has good performance.

It is believed that most electronics enthusiasts have used TDA2030A, TDA1514 and other excellent circuits to assemble simple amplifiers. However, even if they form high-power BTL circuits to connect VCDs and recorders, they still cannot make enough sound from the speakers. This is because they are not installed. Caused by the front push level. If there is no front push, the BTL power amplifier composed of TDA2030A can only have a power output of about 10W. But after installing the front push, the maximum output power can be fully exerted, that is, the TDA2030A can also output shocking audio power.

Circuit principle:

Component selection and production:

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