Features: Engineered for sound systems and professional sound reproduction. Featuring 20Hz-20kHz frequency response and 500+ damping factor for precise control and clear treble in stereo setups. Ideal for audiophiles, DIY speaker builders, and electronics enthusiasts upgrading home theaters or sound projects with industrial component. Perfectly power speakers, car sound systems, or studio monitors while maintaining across in demanding environment. This amplifier board ensuring long durability for applications without signal degradation. Specifications: Component:Metal + PC Size:11x8x3.50cm/4.3x3.1x1.4inches Package Includes: 1Pc ICE50ASX2 170W BTL Amplifier Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.