Kitronik Bluetooth Stereo Amplifier Kit - PCB & parts only
Differential Summing OpAmp Amplifier Kit Only - Herdware.com
EQKIT? AMP-1 TDA2822M Power Amplifier Amplify Module DIY Kit Electronic Production for Diy Kit Electronic PCB Board Module | Alexnld.com
Zerozone Stereo Tda7294 Power Amplifier 68w+68w Pcb/diy Kit/finished Board - Home Theater Amplifiers - AliExpress
Amazon.com: Diy Audio Amplifier Kit, Digital HIFI Power Module Amp Board 2-Channel Stereo PCB for Speaker Sound System for Electronics Industry : Electronics
Diy Kit The Classic 47 Amp Suite Headset Power Amplifier Pcb Circuit Board Spare Parts (without Battery And Lines) - Buy Headset Amplifier,Headset Power Amplifier,Headphone Amplifier Product on Alibaba.com
Lm1875t Mono Boom Level Power 30w Amplifier Board Speaker Power Amplifier Pcb Production Diy Kit Lm1875 - Integrated Circuits - AliExpress
Amazon.com: Diy Audio Amplifier Kit, Digital HIFI Power Module Amp Board 2-Channel Stereo PCB for Speaker Sound System for Electronics Industry : Electronics
PCB and Electronics Class D 500w RMS Loud Bass Mono Amplifier Audio Board | eBay
47 Hifi Ne5532 Headphone Amplifier Diy Pcb Amp Kit With Transparent Case Single Power Supply Dc12-18v - Buy Headphone Amplifier,Diy Amplifier Kit,Amplifier Kit Audio Diy Product on Alibaba.com
Stk 4191 100w Stereo Power Amplifier DIY Kit With Ne5532 Pre Amp Tone CTRL PCB for sale online | eBay