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Hengjiaan TPA3116D2 2 x 50W + 100W 2.1 Channel Digital Amplifier Board
Features: Adopts two high quality TPA3116D2 digital amplifier chips. Sound quality is very good£¬ high efficiency and amplifying power. 50W*2+100W 2.1 channels(left/right channel and subwoofer channel)£¬ high efficiency and low-heat. Powered by DC 12-24V£¬ wide input voltage. User can adjust the volume by themselves easily. Applicable speaker impedance: 4-8 ohm. Just connect the power supply and loudspeaker box£¬ enjoy the pure digital music! This amplifier board must be powered by DC power(DC12-24V)£¬ it's better to use high-performance switch power. Don't use transformer! Supply Voltage: DC 12-24V Chip: TPA3116*2 Channel Type: 3 Channels(Left Channel£¬ Right Channel£¬ Subwoofer) Output Match: 4-8 ohm Audio Output: Terminals Frequency Response Range: 14-100KHz Switching Frequency: 1.2MHz