Solid State Logic SSL Fusion HF Compressor | AudioDeluxe

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Solid State Logic SSL Fusion HF Compressor

Tame undesirable harshness in your tracks and mixes




The SSL Fusion HF Compressor plug-in emulates the high frequency smoothing circuit from the SSL Fusion stereo outboard hardware processor. This circuit affects only the high frequencies and is designed to quickly deliver smooth compression and a tape-like high frequency roll-off to tame unwanted harshness that can build up in a mix, or with individual stems – with the ratio, attack and release all optimised for maximum transparency.

In addition to the features of the original hardware, the SSL Fusion HF Compressor plug-in introduces MIX and AUTO GAIN controls, which allow you to non-destructively dial in the perfect amount of HF smoothing and apply an automatic makeup gain to the compressed frequencies. Combined with feedback from the Gain Reduction graphs, meter and circuit activity LED from the original hardware, quickly taming harshness is a breeze.

Along with ECO mode for tracking and recording, the SSL Fusion HF Compressor plug-in also introduces a brand-new feature of the SSL Plug-in Engine – built-in help. Simply click the question mark ‘?’ symbol in the bottom-right hand corner and mouseover the GUI for context-aware guidance and information about the plug-in and its controls.


  • Modelled on the SSL Fusion HF Compressor processor.
  • Now available in plug-in form, so you can easily use across your tracks as well as your mixes and masters.
  • Remove sibilance from vocals, sooth electric guitars and tame cymbals in drum tracks.
  • Very simple THRESHOLD and X-OVER controls for quickly achieving great results.
  • Ratio, attack and release optimised under-the-hood for maximum transparency.
  • MIX control help to non-destructively dial in the perfect amount of HF smoothing.
  • AUTO GAIN applies an automatic make-up gain to the high frequencies – try using it on drums at more extreme settings, to tame harshness while maintaining crispy cymbals!
  • The Gain Reduction History graph and Gain Reduction meter make it easy to visualise the effect of the circuit.
  • … or use the classic hardware LED to see when the circuit is kicking in.
  • Use LISTEN to solo the sibilant frequencies that are being compressed and removed from the signal.
  • Built on the SSL Plug-in Engine.
  • NEW: Built-in help! Simply click the '?' symbol and mouseover the GUI for more information about each of the parameters.
  • ECO mode: drop into 'ECO' mode for reduced latency and CPU-use, for tracking and recording purposes
  • Exceptional DSP design with reference to the original analogue circuit designs.
  • Modelled using a combination of real-life measurements, analogue circuit designs, and close collaboration with the original analogue designers of the SSL Fusion hardware and validated by real-world producers.
  • SSL’s cross-platform preset management and A/B-ing system.
  • Built-in UNDO/REDO support.
  • Comes with presets from world-class producers and engineers Adrian Hall, Caesar Edmunds and Sean Divine.


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