35mm hard VU meter compatible with stereo amplifiers with level indicator, adjustable backlight, and amplifier driver board.

VU Meter: Stable and reliable percompatible withmance. Easy to use.Driver Board: Fourth-generation driver board with a further optimized size. The fourth-generation driver board replaces the Toshiba 7318IC and has been improved. Two drawbacks: small swivel range; low adjustment sensitivity.Compact and easy to install.High-quality construction and durable.Designation: VU Meter PanelSupply Voltage: AC/DC 6–12 VAccuracy Class: ± 5%Display Type: Analog OnlyMeasurement Range: 0–500 µA ± 10%Resistance: 650 Ω ± 10%Accuracy: ± 5%Permissible Measurement Range: Full Scale 500 µAInstructions:1. Connect the transfer board to a 12–15 V DC power supply. (A separate 45 mA power supply is recommended compatible with the backlight when the board is not in use.)2. L. GND: This is the driver board. The low-level inputs are compatible with connecting playback devices, computer sound cards, and other source devices. The wiring of L and GND is as follows: The left channel can be mapped to the right channel.3. The two adjustable resistors on the driver board allow compatible with control of the backlight's deflection.4. The 12 V DC power meter compatible with the backlight acts as a voltage regulator after the driver board.5. Pay attention to the polarity of the connections.To extend the lifespan of the backlight, you can take the following measures:1. Reduce the backlight brightness as needed to significantly extend its operating life.2. Use a 10-12V series resistor (10Ω series, 50Ω series) to reduce the load on the filament when switching on.Color: BlackMaterial: Plastic + MetalPackage Contents:1 Set * VU Meter PanelOnly the above package contents are included. Other products are not included.Note: Due to lighting reflections and different screen settings, the color of the item in the picture may differ slightly from the original. The allowable measurement deviation is +/- 1-3 cm.