This article introduces the use of TA7240P and some common components to produce a set of small audio combination, which has the advantages of low price, simple production and no height. TA7240P is a low-distortion, low-noise dual-channel audio power amplifier integrated circuit. It has a wide operating voltage range, complete protection functions, and a large output power (5.8W * 2), which is enough for music appreciation in small rooms. The specific circuit is shown in the figure. SMD Electric Power tansformer ,POE transformer ,EP7 SMD tansformer ,EP13SMD tansformer，EPD SMD tansformer IHUA INDUSTRIES CO.,LTD. , https://www.ihua-transformer.com
