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AIYIMA Upgraded A80 Power Amplifier TPA3255 DAC Bluetooth PFFB Stereo 300Wx2 Class D Digital Amp with RCA TRS OPT COA USB Input

ST-838 HiFi 2.1 Channel Stereo Bass Sound Amp Bass and Treble Adjustment 80W*2 Audio Amplifier Mini Media Player

ZK-MT21 Digital Power Amplifier Board 2x50W+100W 2.1 Channel Subwoofer AUX 12V 24V Audio Stereo Bluetooth 5.0 Bass Amp for Home

Bluetooth 5.0 10W Amplifier MP3 Decoder Board Wireless Music Player 5V Car FM Radio Module USB TF for Music Subwoofer Speaker

ZK-TB21 Bluetooth 5.0 Subwoofer Amplifier Board 50W*2+100W 2.1 Channel Power Audio Stereo Bass AMP TPA3116D2

2*3W PAM8403 2.0Ch AUX Mini Digital Dual Channel Audio Amplifier 3W + 3W DIY Speaker USB 5V Small Stereo Amp Amplifier Board

ST-838 HiFi 2.1 Channel Power Amplifier Bass and Treble Adjustment 80W*2 Stereo Bass Sound Amp Audio Amplifier Mini Media Player

AIYIMA A80 TPA3255 Bluetooth DAC Stereo PFFB Power Amplifier 300Wx2 Class D 2.0 Hi-Res Digital Amp with RCA TRS OPT USB Input

Sinbosen FP Series DS-14K 2-channel power amplifier 4400w class td switching professional audio

ZK-502MT 2x50W 2.0 Channel Digital Power Amplifier Board AUX Audio Stereo Subwoofer Bluetooth-Compatible Bass Amp Board Module