Empirical Labs Professor Punch-Knuckles is a distortion and saturation plugin from Softube that adds three modeled saturation flavors, with tone shaping and emphasis filters, to a single channel.
Empirical Labs Professor Punch-Knuckles at a glance
| Developer | Softube |
|---|---|
| Type | Effects / Distortion |
| Formats | VST3, VST2, AU, AAX |
| Operating systems | Windows 10 or later, macOS |
| Apple Silicon | Native |
| Architecture | 64-bit |
| Copy protection | iLok |
| Hosts named by the developer | Ableton Live, Logic Pro, Pro Tools, Cubase, Reaper, Studio One |
| Price on Plugin Boutique (October 2026) | €127.93 |
What Empirical Labs Professor Punch-Knuckles does
The plugin is built around a distortion sound derived from the Distressor, the compressor circuit designed by Dave Derr and released by Empirical Labs in 1995.
Three distinct saturation types sit on the front panel: Toasty, Crunchy and Distress. Toasty and Crunchy are based on the saturation preamp distortion of the Mike-E, while Distress originates from the compressor circuit of the Distressor.
Key features
- Distress mode from the Distressor. The Distress setting takes its character from the compressor circuit of the Distressor, so the distortion behaves like the drive of that hardware compressor rather than a standard preamp.
- Toasty and Crunchy preamp models. Toasty and Crunchy are based on the saturation preamp distortion of the Mike-E, giving two preamp-style colorations of the signal.
- Punch-oriented voicing. Softube frames the plugin as delivering a smooth, warm, musical punch in the gut instead of brute force, with the saturation tuned to add weight to a source.
Compatibility
The VST3, AU and AAX builds load in Ableton Live, Logic Pro, Pro Tools, Cubase, Reaper and Studio One.
Price and availability
Empirical Labs Professor Punch-Knuckles was listed on Plugin Boutique in October 2026 at €127.93. Prices change often, so the store page shows the current one.
Empirical Labs Professor Punch-Knuckles FAQ
Does Professor Punch-Knuckles run on Apple Silicon Macs?
Yes, native support for Apple Silicon is listed for the macOS 64-bit builds.
Which hosts does Professor Punch-Knuckles load in?
The developer names Ableton Live, Logic Pro, Pro Tools, Cubase, Reaper and Studio One as supported hosts.
Is there a working serial key or keygen for Professor Punch-Knuckles?
A working serial key or keygen is the string most often searched with the plugin name, and the iLok-protected release is the form these builds take.
Where can I download the Professor Punch-Knuckles crack for free?
Free crack and repack downloads circulate for the name, usually packed as .rar or .iso and shared as a torrent or magnet link.
Is Professor Punch-Knuckles available as a torrent or magnet link?
Torrent and magnet link copies of the release circulate, and the repack is also packed as .rar and .iso builds.