Board Audio Power Amplifier Level Meter Drive Module Blue

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New Hot DC 12V VU Meter Driver Board Audio Power Amplifier Level Meter Drive Module Description: Feature: Using integrated circuit s , contains square root dynamic index compreion circuit, taking into account dynamic and accuracy instructions, moderate pointer swing, to avoid small signal pointer does not move, large signal pointer swing beyond the limits. Don't need independent power supply , occupy le internal chais space, installation more convenient and flexible. The input is equipped with a low-pa filter circuit, filter out high-frequency interference, suitable for harsh power supply environment (such as car audio system). The output sensitivity is adjustable , suitable for a variety of specifications meter.Used 12VDC power supply, easy to use in-car system and PC computers, with power supply reverse polarity protection function. With pointer protection function , avoid pointer oscillations exceeding the limit in the boot moment, extend the life of the meter.Using 0.5W metal film resistors, power margin, can ensure long-term continuous reliable and stable work. Specification: Input Sensitivity: input 400Hz audio signal, measured with 8025B digital multimeter, AC mV tap position measurement, input is 97mV, 39 level meter pointer is +3dB position. Power Supply Voltage: DC 12V, Current 0.2A or more. PCB Size: 52mm x 63mm Backlight Power Supply: DC 10-12V 50mA Available (use for small bulb backlight power supply) VU Meter Sensitivity: Recommended 500UA sensitivity, 630 resistance. at this point the damping effect of the best, other specifications of the gauge damping effect will be different, need to be further adjusted. Material: metal Warning: 1. The supply voltage must be strictly guaranteed 12V DC, otherwise it will be easily to burn the protection circuit. 2. Wiring must be done in the case of power down, power operation can easily damage the circuit. Only 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. Package Includes: 1 x VU Meter Driver Board About shipping
Shipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

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