Authentically reproducing the legendary sonic signature of the SL 4000 E console classic channel strip featured on countless hits of the 80's, the SSL E Series Dynamics Module for 500 Series racks faithfully recreates the crucial components and circuitry that defined the sound of the original channel strips. Features The gain element is an all discrete design, identical to the Class A VCA chip used in the original unit, while a true RMS converter is used in the side chain. Containing additional switching options to defeat the over-easy compression curve, and to use a linear release instead of the more common logarithmic curve. As a result, the SSL E Series Dynamics Module has 3 distinct compression sounds, each with it's own character and flavour.