PSVANEVacuum Tube EL84 Precision Pairing Tubes for Electronic Tube Amplifier HIFI Audio Amplifier Kit

12-16V VU Level Meter with Backlights DB-Meter Audios Volume Meter

5pcs New and Original OPA2604 OPA2604AP DIP8 Operational Amplifier, Current Feedback Chip

TDA7293 2Channel 100W+100W Highly Power Amplifiers Board Power Wire AC18v35V Amplifiers Module for Home Sound Setups

LM317 LM337 Voltage Regulator Module Adjustable Stabilized Board Power Supply AC10‑24V Input

Adjustable Sensitivity LM393 Sound Sensors Module Low Level Signal Output Compatible For DIY Electronics And Home Automation Systems

12-35 Audio Preamplifier Board Stereo 553Panel Pre-amp

Mini Headphone Amplifier Module 3.5mm Interface Earphone Preamplifier Board DC 3‑12V MAX4410

Stereo Auditory Sound Control Board With Double Gang Potentiometer B10K/B50K/B100K For Amplifiers And DIY Kit

220V Toroidal Isolation Transformer - 24V Low-Frequency Voltage Converter for Power Amplifiers

3?Channel Speaker Protection Board Power Single Supply Amplifier Delayed Protection Module

XH A902 NE5532 Operational Amplifier Module Power Preamplifier Tone Board Preamp

30A Speaker Protection Circuit Board DIY High Power Stereo Speaker Protection Module

2Sc5200+2Sa1943 Tube 100W Dc 35V Mono Channel Hifi Audio Amplifier Board Mono-Channel 100W High-Power Mono

Bluetooth Audio Circuit Board With Wires Bluetooth Module Amplifier Board Diy Bluetooth Module With Charging Port

161 Type Dual Channel B10K B50K B100K Amplifier Woofer Balance Potentiometer 6 Feet

NE5532 HIFI Stereo Preamplifier Tone Board Treble Mediant Bass Volume Control Dual AC 12V 18V

TDA7293 Digital Amplifier Mono Single Channel AMP Board 12V-32V 100W

HW-447 TPA3116D2 120W High Power Digital O Power Amplifier Board

10PCS B5K B10K B50K B20K B100K RK097G Audio Amplifier Sealed Dual Potentiometer 15mm Shaft 6pins WAVGAT

Cxa1691/Cd1691/ Fm Receiver Board (Continuously Adjustable, No Squelch, Mono)