Limiter No6
Key Features
- Five-module processing chain (RMS compressor, peak limiter, HF limiter, clipper, true peak limiter) for incremental loudness shaping
- M/S and multiband processing modes for independent control over stereo and frequency-band dynamics
- True inter-sample peak (ISP) limiting that catches clipping between samples for broadcast-safe masters
- Optional 4x oversampling for higher-fidelity processing with reduced aliasing artifacts
- Stereo linking to prevent channel imbalance and maintain a stable stereo image
- Adjustable brickwall and soft limiting with independent timing controls per module
- Two switchable GUI skins with analog-style metering for visual feedback during mastering
Description
Limiter No6 by vladg/sound is a modular mastering limiter that packs five independent processing stages into a single plugin. It includes an RMS compressor, peak limiter, high-frequency limiter, clipper, and true peak limiter — each with its own controls for precise gain staging.
The plugin supports M/S and multiband processing modes, giving you detailed control over stereo imaging and frequency-specific dynamics. Optional 4x oversampling and true inter-sample peak (ISP) limiting ensure broadcast-safe output without clipping artifacts.
Producers and mastering engineers consistently rank it among the most capable dynamics processors available, with many noting it holds its own against commercial limiters costing hundreds of dollars. The five-module chain lets you shape loudness incrementally rather than relying on a single brickwall stage, resulting in more transparent results at competitive loudness levels.
The interface includes analog-style metering and two GUI options. Stereo linking prevents channel imbalance, while the clipper module adds controlled harmonic saturation before the final limiter stage.
Originally developed by Vladislav Goncharov, the plugin is distributed through Tokyo Dawn Records as a legacy product. It served as the foundation for the commercial TDR Limiter 6 GE, which added refined algorithms and an updated interface.
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Frequently Asked Questions
How does Limiter No6 compare to the commercial TDR Limiter 6 GE?
Limiter No6 is the original plugin that inspired Tokyo Dawn Labs to develop the commercial Limiter 6 GE. The paid version adds refined processing algorithms, an updated interface, and continued support. Limiter No6 remains a legacy product that is no longer actively updated, though it still functions on most modern systems.
What is the correct signal chain order for the five modules?
The modules process audio in sequence: RMS compressor first for gentle gain reduction, then the peak limiter for fast transient control, followed by the high-frequency limiter to tame harsh upper frequencies. The clipper adds controlled saturation before the true peak limiter catches any remaining inter-sample peaks at the output stage.
Does Limiter No6 support Apple Silicon Macs natively?
Limiter No6 is a legacy product last updated around version 1.0.2b. It was built for Intel Macs running OS X 10.5 and later, so on Apple Silicon Macs it runs through Rosetta 2 translation. Compatibility with modern systems is not guaranteed by the developer.
Is the ISP limiter necessary if I already use a peak limiter?
Yes. Standard peak limiters work on individual samples, but inter-sample peaks (ISPs) occur between sample points when the audio is reconstructed by a DAC or codec. The ISP limiter catches these overages, which is critical for streaming platforms and broadcast delivery where true peak compliance is required.
