Solid State Logic 500-Series B-DYN

Solid State Logic 500-Series 4000 B Dynamics Module (B-DYN) 729737X1

B-DYN puts the dynamics processor of the SL 4000 B console channel strip into 500-series format. Released in 1976, the 4000 B was the first console made by Solid State Logic and was used on records such as Phil Collins' "In the Air Tonight" and Peter Gabriel's "Intruder".

Unlike later SSL channel dynamics, the 4000 B used the fader VCA as its gain element in a feedback design close to the SSL Bus Compressor, and B-DYN inherits this topology, with peak sensing for a coloured, "grabby" character and the Bus Compressor's program-dependent Auto release. The compressor offers ratios of 2:1, 4:1 and 10:1 plus a DS (de-ess) mode with filtered side chain and 2 ms attack; the gate/expander works as a 20:1 gate or 2:1 expander with 0.2 ms attack.

Key features

• Recreation of the SL 4000 B console channel dynamics
• Feedback design based on the SSL Bus Compressor, peak sensing
• Compressor/limiter and gate/expander
• Ratios 2:1, 4:1, 10:1 plus DS de-ess mode
• Fixed release times plus Auto release
• Automatic make-up gain
• 185 Hz 6 dB/oct side-chain high-pass filter
• Stereo link mode

Notes

• Requires a 500-series rack (not included)