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!

Notice:
This amplifier board must be powered by DC power(DC12-24V), it's better to use high-performance switch power. Don't use transformer!

Specifications:
Supply Voltage: DC 12-24V
Chip: TPA3116*2
Channel Type: 3 Channels(Left Channel, Right Channel, Subwoofer)
Output Power: 50W*2 + 100W*1 Subwoofer
Output Match: 4-8 ohm
Audio Output: Terminals
Frequency Response Range: 14-100KHz
SNR: 100dB
Switching Frequency: 1.2MHz
PCB Board Size: 100 * 70 * 30mm / 3.94 * 2.75 * 1.18in (L * W * H)
Weight: 113g / 3.98oz

Package Included:
1 * TPA3116D2 50Wx2+100W Amplifier Board