A true RMS converter is used in the side chain while the gain element is an all discrete design identical to the Class A VCA chip used in the original unit.

The compressor contains additional switching options to defeat the over-easy curve and to use a linear release instead of the more usual logarithmic curve.

The result is a compressor with three distinct voices, each with its own musical character.

Key Features:

• Immortal SSL 4000 Series circuitry
• Class A VCA replication
• Expander/Gate
• Based on classic 611E console channel strip