Fosi Audio A502P 2.0Ch Stereo Audio Amp & Headphone Amplifier Mini Hi-Fi 50Watt x 2

Color: Silver
Sale price$66.99


  • Small simple compact design but practical and powerful, exclusively designed for the customers who pursue HiFi sound; Ship with power adapter and power cord, no sparks flying when power cord plugin.

  • Adopt Texas Instruments TPA3116D2 chip to get clear audio sound, No pop when switching on or off, no audible noise, dead silent when nothing is playing through it. 50Watt X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD) can drive 2Ohm - 8Ohm 20-320Watt speakers and 10-300Ohm headphones;

  • With headphone amplifier output, The speakers' output will interrupt when headphones are plugged in. Works with (MP3, CD, TV, PC, Echo Dot, iPhone, Android, Smartphones, iPad, Tablets, Turntable, etc.), best for (Bookshelf/ Computer/ Desktop/ Theater audio system);

  • Advanced circuitry design, built-in speakers protection circuit, solid aluminum chassis for long time use, small size, good looks, simple functionality, and excellent sound quality;

  • Aluminum shell to sure high quality, Manufacturer-Direct, free lifetime technical support, and 18-month manufacturer's warranty. Feel free to contact us at, we will reply to you within 8 hours.


1. Power supply range: 12v-24v;

2. THD: ≤ 0.04%;

3. Frequency Range: 20Hz - 20kHz (±1 dB);

4. SNR: ≥ 98dB;

5. Input sensitivity: ≤ 280mV;

6. Terminating impedance: 2Ohm - 8 Ohm;

7. Output power: 50W + 50W;

8. Input mode: Analog RCA;

9. Headphone output: 16-300Ohm;

10. Power supply: 19V 4.74A 90W;

11. Supplied Accessories: Amplifier, Power supply, AC power cord, Headphone plug adapter, Manual.

*Compare with TPA3116 V1.0B and V1.0G
  • 1. No sparks flying when power supply plugged in;

  • 2. Add headphone amplifier function;

  • 3. The power LED light will off when you switch off the A502P amplifier;

  • 4. No click pops when switch on or off;

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