Detail 01
DS mode
Uses a 10:1 ratio with filtered sidechain input for broadband compression triggered by sibilance.
Product detailSKU #1500000407541
Solid State LogicB-DYN 611B 500 Series Compressor/Limiter
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Independent shopping perspective
The Korena take
SSL’s B-DYN 611B brings the SL 4000 B console dynamics processor to a 500 Series module. Its compressor/limiter provides stepped 2:1, 4:1, and 10:1 ratios plus DS, with automatic make-up gain from the Threshold and Ratio controls. A 185 Hz sidechain high-pass filter helps reduce bass-related pumping. The gate section works at 20:1, or becomes a 2:1 expander with EXP; Range sets its maximum gain reduction. Selecting DS on Ratio and Release enables sibilance-triggered broadband compression.
Strong match
Who this is for
- Tracking or mixing where a 185 Hz sidechain filter is needed to reduce bass pumping effects.
- De-essing vocal material with the dedicated DS Ratio and Release selections engaged.
Consider the trade-offs
When to look elsewhere
- Compression setups that require the compressor to remain active when its control is set to Out.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Gate/Expander
Operates as a 20:1 gate, or a 2:1 expander when EXP is selected.
Detail 03
Release options
Compressor release ranges from 0.2 ms to 1.6 ms, with DS and Auto options.
Final check
Know before you order
- 01B-DYN is a 500 Series module.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does DS mode do?
With both Ratio and Release set to DS, it applies sibilance-triggered broadband compression at 10:1.
02Can the gate operate more gently?
Yes. Pressing EXP changes the gate section from a 20:1 gate to a 2:1 expander.
