TDA7297 AC/DC 12V 2*15W Digital Stereo Audio Amplifier Dual Channel AMP Module K

NE5532 OP-AMP HIFI Audio Preamplifier Dual Preamp Board for Bluetooth Pre-amp

TDA1308T/N2,112, Amplifier IC Headphones, 2-Channel (Stereo) Class AB 8-SO

TDA2822 TDA2822M 1W+1W 1.5W+1.5W Audio Amplifier 0.25W Single Dual Channel Board

Power Supply TDA2030 Audio Amplifier Board Module TDA2030A 6-12V Single New

12-24V NE5532 Audio Filter Hifi Pre-Amplifier Pre-amp Preamplifier Tone Board

TDA8932 Digital Amplifier Board Module 30W Mono Power amp Low Power 12V 24V UK

6J1 Valve Pre-amp Tube PreAmplifier Board Bass on Musical Fidelity X10-D circuit