Fosi Audio
Fosi Audio BT20A Bluetooth Amplifier, Mini HiFi Stereo Amp Integrated Receiver for Home Audio Passive Speakers, BT 5.0 Class D 2.0 Channels, 100W x 2 TPA3116 Chip, Treble & Bass Control Knob
JINGERL
JINGERL 4 * 50W TDA7850 Audio Power Amplifier Board 4 Channel Subwoofer Car Stereo Home Theater Amplificador