1. glassfiber material, high mechanical strength, long service life of the circuit board.2. Withthe functions of filtering noise, suppressing electromagnetic interference, filtering signals, and stabilizing current.3. This power amplifier board has low distortion, low noise and large dynamic range.4. Excellent in terms of sound transparency, resolution, background tranquility, and lowfrequency shock.5. The circuit board designed is reasonable and costeffective, very suitable for DIY enthusiasts.Item Type: Power Amplifier BoardModel: XH-M543Supply Voltage: DC12-26VOutput Power: Maximum 120W x 2Signal To Noise Ratio: 100DBNumber of Channels: 2-channel stereoDouble-Layer Circuit Board Thickness: Approx. 1.6mm / 0.1inMaterial: PCBcolour: bluePackage Contents:1 x Power Amplifier Board1 x CableOnly the above package content, other products are not included.Note: Light 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.