Serpent Audio Chimera by EricFreeman
This thing a great compressor. I give it 5 stars, because it has the same sound quality, and features as an actual La-3a. It competes with brand name compressors 4 times its price.
I've never had both the La-3a and the Chimera units at the same time, so I can't comment on if the sound is exactly alike in all aspects. What i do know, is that it has a high-end sound, and hits the sound in the same way that I expect an La-3a to.
I used to send all my electric guitars to an 1176 or MC77, now I send them to this.