Item Type: VU Meter Driver Board Driver board model: VU 01 Driver board material: PCB Driver board voltage: 9-12V Introduction: VU level meter stereo amplifier board, 2 VU meter 9-12VDC stereo amplifier board level meter can be adjusted by the driver. VU meter voltage: 12v, Two vu meters can be connected. 1、Professional Audio VU: Using professional audio VU driver IC, this IC small signal pointer contains dynamic compression circuit, logarithmic output characteristics, so as to avoid walking signal large when the pointer touches the bottom. 2、Mute Function: The IC has a mute function. The mute function pin will be low level at the moment of power on, which can avoid touching the bottom of the pointer at power on. The pointer will swing a small amount to conform to the power on habit. 3、Power Supply Method: The circuit is powered by DC 9?12V and uses the original IC, which is very easy to use. Each board has been tested and adjusted by our professional test bench. 4、Consistent Quality: We ensure the consistent quality. The design layout of the driver board is beautiful and reasonable, without interference and self excitation. 5、Swing Adjustment: In addition to adjusting the load potentiometer, swing adjustment can be used from the input voltage divider circuit. The brightness of the backlight can be achieved by adjusting the resistance value of R9 and R10. With the electrical parameters of the backlight, it can be easily calculated according to Ohm's law. 6、Crimp Terminals: We have selected crimp terminals with medium height. The most important thing is that the clamping method is very reasonable, which can tightly clamp various sizes of wires. In addition, we use a double panel, the pads of the crimp terminals are more hard and not easy to loosen. 1 x Module 2 x Meter