APX 351

APX 351 by Tone Empire is a neural network–powered emulation of a rare American vintage recording amplifier front end, the kind famously paired with tape machines. It captures the warm, harmonically rich character of that iconic preamp, adding analog depth and authentic vintage charm to your tracks. Use it to thicken vocals, add grit and body to drums, or bring electric and acoustic guitars to life. It works especially well on bass and mix busses where you want subtle coloration and cohesion. This plugin suits hobby producers and mixers chasing classic, sought-after tube tone without hardware. It runs in FL Studio, Ableton and Logic on Windows, making it an easy addition to any modern setup.