Due to the beautiful sound effect of the single player, it has gradually become a pet in the hands of many young friends. Especially with the advancement of technology and the improvement of people's appreciation ability, many single players have some functions of small composite speakers.
But the disadvantage of the single player is that the output power is small, so many young people and friends have bought speakers with amplified functions, that is, active speakers as the power expansion of the single player.
The active speakers sold on the market are expensive, so you can make a pair of active speakers yourself, which can save costs and increase your ability to experiment.
Taking into account the difficulty of production and the cost should not be too large, this set of active speakers, mainly integrated circuit TDA2822, supplemented by broadband high-sensitivity speakers, its small size and beautiful sound.
This set of small active speakers only has the function of sound amplification. In order to reduce the complexity of the function control, the volume control is controlled by the volume potentiometer of the single player. It is better if the single player can have three-band tone equalization and automatic rewinding function.
Circuit principle:
As we all know that the parents all over the world pay more attention on children education, so more and more businessman do education laptop deals, therefore education laptop is becoming one of the most important fields no matter on customizing laptop or brand one. There are different series according to students ages, 14 inch celeron windows 10 education laptop for elementary students, 15.6 inch j4125 intel education laptop for middle or high school students or normal business jobs, 15.6inch 10th or 11th windows laptops for students in college or professional business or online teaching, etc. Besides, 15.6 inch 10th with 2gb graphics Programming Laptop or 16.1 inch i5 i7 i9 9th HQ GTX 1650 windows laptop for programming also available.
Other Type devices, like Yoga Laptop , Custom All In One PC, High Performance Mini PC or Android Tablet also available.
So you just need to share the education laptop price and parameters matched prefer, then right valuable information provide directly for you.
You are always welcome whatever only consult or have purchase plan recently.
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Henan Shuyi Electronics Co., Ltd. , https://www.shuyipc.com