Amplifier Kits and Modules

Browse our large selection of mono & stereo audio amplifier circuits DIY, amplifier boards with built-in preamps and high-end audiophile valve amplifier kits & modules. Transistor and monolithic integrated IC based designs to suit industrial, professional, educational and hobby audio applications. With these kits/modules you can build custom devices and special-purpose remote control electronics for professional and educational use, or as a hobby.  Kits include schematic diagrams, instructions step by step, components, and pcb.