Features:1. Adopt high quality TDA7293 TDA7294 poweramplifierchip.2. Output power up to 100W single channel.3. Powered by DC12-32V, wide supply voltage.4. Stable performance, long service life.5. Sound quality is very good by using this audio power amplifier module.Specification:Condition: 100% Brand NewSupply Voltage: Dual AC12-32VChannel Type: Single ChannelLoad Type: 4-8speakerOutput Power: up to 100WInput resistance: 100KFrequency range: 20Hz-20KHzConversion rate: 15V/uSInstallation Dimension: 54mm * 22mmWeight: Approx. 43g / 1.5ozPackage List:1 * Amplifier BoardNote:DC current and battery can not be usedPlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..