The COMP-554 Compressor from Golden Age Project is a one-channel, vintage-style compressor for the 500 format. The COMP-554 compressor can be used in various environments by musicians and engineers, in recording, broadcast, or live stage and theater applications.
The signal path uses discrete components such as resistors, capacitors, and transistors, and the transformer-balanced input and output use a third inter-stage transformer. The class-A circuit used in the COMP-554 is like the one in the classic 2254 compressor that was designed in 1969. It quickly became popular due to its natural sound character, that is warm, smooth, sweet, and musical.