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$ 699 .99
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SSL 4KB DYN B-Series Dynamics 500 Series Module

500 Series compressor/limiter and expander/gate module modeled after the original circuit design of the SSL 4000 B-Series channel strip with stepped compression ratios 2:1, 4:1, 10:1 and 'ds',  and automatic make-up gain with THRESHOLD control

MFR# 729737X1

Product Description

The Solid State Logic B-Series Dynamics Module continues the expansion of the SSL 500 Series Modules and comprises of a compressor/limiter and an expander/gate. It is modeled on the original circuit design of the SSL 4000 B-Series channel strip as Installed in the 80s in ‘The Stone Room’ at Virgin’s Townhouse Studio (London), Le Studio (Montreal) and Record Plant (LA).


The B-Series Dynamics Module features a compressor/limiter with three fixed stepped compression ratios 2:1, 4:1, 10:1 and an additional 'ds' mode. The 'ds' setting is a fixed 10:1 with additional sidechain filter. The differing topology makes the B-Series Dynamics module a more characterful and coloured Dynamics processor than the E-Series. Its gate/expander can act as a 20:1 gate or as a 2:1 expander when the EXP button is pressed. The OUT setting can also take the gate/expander out of the circuit independently of the compressor. The B-Series Dynamics Module's circuitry is based on the legendary original circuit design of the SSL 4000-B Series Channel Strip that gave that iconic 80's sound.


  • Legendary SSL 4000 B Series Channel Strip circuitry
  • Stepped compression ratios 2:1, 4:1, 10:1 and 'ds'
  • Automatic make-up gain with THRESHOLD control
  • DS setting has fast attack and release time
  • OUT setting takes gate/expander out of circuit
  • LINK sidechain prevents image shifts with stereo signals

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Single-Channel
Chassis Module
Module Type 500 Series
Module Slot Count 1 Slot
Analog or Digital Analog

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