All-FET Audio (AFA) offers high-performance, audio-electronic modules to DIY hobbyist and audiophiles who want to build their own high-end audio gears. AFA’s modules include phono preamp, line/headphone amp, I-V converter, power amp, and regulators.

AFA’s modules are based on complementary, direct-coupling, Class-A circuitries. Only FETs (JFETs and MOSFETs) are used as gain devices for superior sonic quality.