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ML4000 HD

Dynamic Processor by McDSP

“The ML4000 is ridiculously good sounding, and a real swiss army knife in my arsenal of tools.”
Ask Audio. Your ultimate daily resource covering the latest news, reviews, tutorials and interviews for digital music makers, by digital music makers.

Note: This product is the HD version. You can purchase the Native version HERE.

The ML4000 is a high-resolution limiter and multi-band dynamics processor designed for music, mastering, post, and live sound.

The ML4000 is two plug-ins:

  • ML1 – mastering limiter
  • ML4 – multi-band Gate, Expander, and Compressor fed into the ML1 mastering limiter

The ML1 mastering limiter uses a flexible brick wall look-ahead design coupled with multiple stages of limiting for superior peak detection. The unique Knee and Mode controls allow the ML1 to handle any kind of material with a variety of responses ranging from transparent to aggressive.

The ML4 multi-band dynamics processor includes a 4-band Gate, Expander (upwards or downwards), and Compressor fed into the same limiter algorithm found in the ML1. Each band’s Gate, Expander, and Compressor can be configured separately or linked together. Steep 24 dB/Oct crossover filters minimize signal leakage into adjacent bands. Multiple real-time metering options in each band allow quick visualization of all signal dynamics.

The ML4 crossover page shows the overall frequency response in real-time of the input, output, or total dynamics effect, on top of the graphically adjustable crossover frequencies. Accurate output adjustment is fast and simple with output ceiling control, large meters, and meter level text readouts.

The ML4000 provides outstanding results with an intuitive user interface, flexible design, and powerful set of algorithms.


  • Brick wall look-ahead limiter
  • Multi-stage peak detection and limiting
  • Unique limiter Knee and Mode controls
  • Multi-band Gate, Expander (up/down), Compressor
  • Simultaneous display of Gate, Expander, and Compressor dynamic curves in every band
  • Multiple real-time metering options
  • Adjustable crossover filters
  • Multi-band control linking
  • Analog Saturation modeling
  • Double precision processing
  • Ultra low latency
  • Mono and stereo versions

System Requirements


  • OSX 10.8 (or higher)


  • Windows 7 (or higher)


  • AAX Native
  • AU
  • VST

Platform Requirements:

  • AAX versions require Pro Tools 10.3.8 or higher, or Pro Tools 11.1.3 or higher
  • S6L versions require VENUE OS 5.2 or higher
  • AU versions recommended for Logic X, or higher
  • VST versions recommended for Cubase 7.x, 8.X, or higher, and Nuendo 6.5 or higher

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