ขาย diy เครื่องขยายเสียงไฟฟ้าแบบ passive front plate ราคาที่ดีที่สุด

Features: This is a passive attenuation type tone board, and the circuit adopts a full high bass regulating circuit without cutting out! Not shrink! Without transformer power supply, you can achieve high bass regulation, simple Passive design does not appear ground loop bottom noise problem! And independent design has shielded ground wire, and audio signal ground wire completely separated, clutter not disorderly string! The installation is simpler! The volume control panel can be directly separated! DIY is very convenient! The potentiometer shaft spacing is 25mm 1.6mm military grade board! Full bass adjustment circuit without deletion! No shrink! Count the number of components to know! Function order (left, right), treble, bass - volume, clockwise, small, counter clockwise The center distance of the potentiometer and screw is 25mm Lin: left channel signal input Rin: right channel signal input Lout: left channel signal output Rout: right channel signal output Package List: PCB Logo Component Type W1，W2，W3 50K R2，R9 10K R3，R10 1.5K R4，R11 4.7K R5，R12 510Ω R6，R13 100Ω R7，R14 1K C1，C3，C5，C7 22nf(223) C2，C6 220nf(224) C4，C8 2.2nf(222) R1，R8 Input Attenuation Resistance Size: 7.7x2.5cm/3.03x0.98inch Quantity: 1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 Set x PCB Board Kit