FET compression
FET (field effect transistor) compressors have a quick attack, often used to catch transients.1 They are based off of transistors, which were used to emulate tubes. FET compression can have an aggressive tone when pushed.2 They can also be used as a colorful preamp with the compression turned off.3 The 1176 is the most famous FET compressor.4
FET compression may be likened to a chisel.5 DC8C3 can do compression similar to FET-style with Crush mode. MTurboComp does an 1176. MJUC Mk2 does a 176, the all-tube predecessor of the 1176, somewhere between tube and FET. It seems Pro-C 2’s Punch mode is FET-inspired. Reaper’s 1175 Compressor is based on an 1176.
Rick Beato likes 1176s on snare, acoustic guitar, piano, and vocals.6 Chris Lord‑Alge, Michael Brauer, and Rich Costey like an 1176 on drums, especially for their harmonic coloration. Steve Churchyard, Chris Lord‑Alge, and Ralph Sutton like an 1176 on bass too, though be careful not to have a too-fast attack time that it distorts on bass waveforms.7