audio amplifier
bluetooth amplifier 4.2
bluetooth amplifier
bluetooth amp
bluetooth amp
bluetooth amplifier
bluetooth amplifier

[Old Version] BT20A Bluetooth 4.2 Stereo Audio 2 Channel Amplifier

Fosi Audio

Regular price $76.99 $49.99 Sale


  • Old Version
  • 100W RMS X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD), comes with 24V power supply, can drive 280watts(8 ohm), 320watts(4 ohm) speakers, (For passive speakers only, not the powered speakers.)
  • Advanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your home;
  • Home integrated digital amplifier, 18-month warranty, you can return the item if you have any problems;
  • Small simple compact design but practical and powerful, Hi-Fi Bluetooth amplifier exclusively designed for the customers who pursue HiFi sound;
  • Bluetooth 4.2 core, up to 33ft connection range guarantees low signal delay. No pop, no audible noise when Bluetooth connection is established;



      1. Power supply range: 12v-25v;
      2. THD: ≤ 0.5%;
      3. Frequency Range: 20Hz - 20kHz (±1 dB);
      4. SNR: ≥ 98dB;
      5. Input sensitivity: ≤ 280mV;
      6. Bluetooth transmission distance: 28ft;
      7. Terminating impedance: 2Ohm - 8Ohm;
      8. Output power: 100W + 100W;
      9. Input mode: Bluetooth and Analog;
      10. Bluetooth Name: Fosi Audio
      11. Power supply: 24V 4.5A
      12. Supplied Accessories: Amplifier, Power supply, AC power cord, Manual.