ขาย Tda2003 บอร์ดขยายเสียงพร้อมสวิทช์ขนาดเล็กและกลาง 2.0 พร้อมส่ง ราคาที่ดีที่สุด

This circuit uses TDA2003 domestic integrated block, simple circuit, wider bandwidth, beautiful sound quality, exclusive optimization, ultra-quiet, no impact, and can be widely used in various audio and small and medium power audio equipment, audio amplifier circuits, etc. It has the characteristics of small size, high output power, low distortion, etc. The chip comes with an internal protection circuit, few external components, and high output power. It adopts a small package (TO-220), which can improve the assembly density, switch machine has no impact, and will not hurt The speaker contains various protection circuits, so it works stably and reliably. The power of the power amplifier ule is low, and the output sound is loud enough. It uses ordinary full-range speakers and has a 3P fan interface. You can directly use the computer fan and support fan cascade. It is perfect for DIY ification as the power amplifier part of home active speakers or small power amplifier. PCB size: 84mm x 80mm Radiator size: 76mm x 45mm x 21mm ule weight: 125 grams (without packaging) Power supply: AC and DC dual purpose, either a normal DC power supply or a common transformer AC power supply. Remember! Can not be used in combination, only one power supply can be connected, it is recommended to use DC12V DC power supply DC power supply: 12V2A AC power supply: 7V-11V (20W-30W transformer) Speaker unit: 3 inches-5 inches Speaker impedance: 2Ω-4Ω Cooling fan: 12V computer case fan, standard interface, direct use Material:abs colour:black Package Contents: 1 x Power Amplifier BoardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.