2 x 8 Watt Bluetooth Audio Amplifier Kit - TSA2210U
Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302 : ID 2130 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
IWISTAO TDA1514A Power Amplifier Board Kit or Finished PCBA 2x40W – IWISTAO HIFI MINIMART
LM386 Super Mini Audio Amplifier DIY Kit Board 35x37mm 3-12V - Unsolde – eElectronicParts
2 x 8 Watt Bluetooth Audio Amplifier Kit – Oz Robotics
Vistreck 2.1 Channel Subwoofer Power Amplifier Module DIY Kit 50Wx2+100W Treble Bass Control DC 12-24V BT Audio Amplifier Board Stereo Speaker Digital Amp for Audio System - Walmart.com
2.1 Channel Subwoofer Power Amplifier Module DIY Kit 50Wx2+100W Treble Bass Control DC 12-24V BT Audio Amplifier Board Stereo Speaker Digital Amp for Audio System - Walmart.com
Power Amplifier Board Stereo Digital Audio Amplifier Module Kit for DIY Speakers | eBay