Main Features‎:‎‎- Lepy LP2020A amplifier chip provides efficient‎,‎ powerful sound‎- Multiple audio inputs‎- Compact size and lightweight‎,‎ sturdy aluminum alloy enclosure‎- Low distortion‎,‎ acoustically accurate reproduction of music‎.‎ Ideal for both home and car audio applications‎- Built‎-in loudspeaker protection‎:‎ When the amplifier is turned on to protect speakers from high volume bursts of audio‎- Over‎-voltage protection‎:‎ The interior circuit will automatically shut down when the input voltage exceeds 14.4V DC‎- Input power‎:‎ DC 12 ‎- 13.5V‎- Output power‎:‎ 20W x 2 RMS‎- Speaker impedance‎:‎ 4 ‎- 8 ohms‎- Frequency response‎:‎ 20Hz ‎- 20KHz‎- Minimum THD‎:‎ Less than 0.4 percent‎- SNR‎:‎ More than 80dB‎- Input sensitivity‎:‎ 200mV‎- Input impedance‎:‎ 47K ohms Channels‎:‎ 1 Package weight‎:‎ 0.566 kg Product Size‎(‎L x W x H‎)‎‎:‎ 14.00 x 11.50 x 4.00 cm / 5.51 x 4.53 x 1.57 inches Package Size‎(‎L x W x H‎)‎‎:‎ 25.50 x 14.50 x 5.50 cm / 10.04 x 5.71 x 2.17 inches Package Contents‎:‎ 1 x Lepy LP ‎- 2020A HiFi Amplifier‎,‎ 1 x English User Manual‎,‎ 1 x Power Adapter