The dynamics Section in the SL 4000 B
console channel strip was unlike any other SSL channel dynamics module
that followed, using the fader VCA as its gain element, rather than a
dedicated VCA. It had a design similar to the topology of the SSL Bus
Compressor. This VCA ‘feedback’ design has been inherited by the B-DYN
module, offering characterful and coloured compression, with its own
unique sonic signature - very different from the later E and 9000
Series. These similarities are also evident from B-DYN’s ‘Auto’ release
setting, which offers a program-dependent release time as found on the
Bus Compressor.