Sell DC 12V TDA7379 38W+38W Stereo Amplifier Board with AD828 Preamp super than NE5532 best price

Use new imported TDA7379 amplifier chip, with fever AD828 preamp. R8, R10 is the magnification setting resistor (default delivery is about 2-3 times magnification, according to their need to change the magnification from 10k-47k resistor between select, the greater the resistance. the higher the zoom factor, if it is used plug-in resistors, chip resistors can take down the original, the plug-in resistance welding position on the patch ends of the pad). Preamp input and output coupling capacitors Promise of imports fever capacitance, better than the polarity effect. Maximum output power: 39W X 39W Operating voltage: DC 9-17.5V Board dimensions: length *width(50mm*33mm)/1.97*1.30 inch material:plastic,metal colour:red Package included:1x TDA7379 Amplifier + AD828 Preamp Board 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.