SGA1566 is loosely based on a single channel vintage tube preamplifier. We have made some changes to the original schematic, added tone controls, and made it stereo. To achieve the most authentic analog sound, the whole circuit is simulated in real time using the high performance circuit simulator. However, this level of sound fidelity comes at a price of high CPU utilization. For cases where such a CPU hit is prohibitive, we have added a model that is significantly less CPU intensive but slightly less accurate than the circuit simulation.

Use SGA1566 to add warmth to a track, as a saturation compressor, or to add "dirt" with tube overdrive.

Windows VST 32bit
Windows VST 64bit
Mac AU & VST Universal Binary
System Requirements


  • OS X 10.7+
  • VST and/or AU 32-bit or 64-bit host


  • XP / 7 / 8
  • 32-bit or 64-bit VST host
Sound Samples
A muffled drum loop brought to life with warmth and saturation compression.
Bass made agressive and fat by driving SGA1566 into distortion.

Original track: "Knock Bass" track from Synthetique by TONAL AXIS, Trackton 4 demo.