ITEM NAME:High Power Amplifier Board 420W 1-Channel TDA8954TH Digital Audio Power Description: Hi-Fi Sound: Maximum output power of 420W gives you a Hi-Fi sound. High Sensitivity sound Amplifier Board: Adopting high sensitivity to make sound very clear. Single Channel: Mono Amp Board adopts single channel. Gives you great hearing enjoyment. Multi-level Protection: Built-in over voltage protection, over heat protection, undervoltage protection, DC detection and short-circuit protection of this digital power amplifier board helps provide a safe amplification. Stable Current: This digital power amplifier board makes sure a stable current, thus ensuring the stability and smoothness of sound. Specification: Product type: Digital Power Amplifier Board Chip: TDA8954 Maximum output power: 420W Output impedance: Supports 2-8 Ohm, recommended 4 Ohm Input voltage: Recommended dual AC 24V( range: AC12-28V) Channel number: Single channel Size: approx. 82x72x37mm/ 3.23x2.83x1.46 in Weight: 121g Package Includes: 1 Piece Digital Power Amplifier Board Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. SKU: DMO0011825179018686.Hi-Fi Sound: Maximum output power of 420W gives you a Hi-Fi sound. Maximum output power: 420W. High Sensitivity sound Amplifier Board: Adopting high sensitivity to make sound very clear. Stable Current: This digital power amplifier board makes sure a stable current, thus ensuring the stability and smoothness of sound.