AXELL SIGNATURE · SATURATION
Axell Forbidden Seal
Saturation from physics. Your voice never passes a circuit.
WINDOWS · LINUX · VST3 · EIGHT CIRCUITS · THREE BANDS · UP TO 16x OVERSAMPLED

Saturation that never touches your voice - only what it adds. Eight circuits modelled from physics. In 4.0 the voice never passes a circuit: what each circuit adds is split into its squash and its new harmonics, and the harmonics are placed where they flatter a voice.
01 WHY IT'S DIFFERENT
Five reasons, all measured.
Decoupled saturation
your highs stay silky, your mids never turn to a box - the voice itself is never processed.
Measured against a respected tape emulation
at equal squash: less box at 61 of 64 points, the predicted listener score matched at every point.
Eight circuits from physics
tape hysteresis, triode, push-pull pentode, console, germanium, iron, diode, fold.
Esses out of the grit
ESS GUARD keeps them clean: guarded esses at -137 dB of residue.
A face like no other
DRIVE is a katana drawn from its scabbard; the blade heats with the drive.
Every figure comes from the plugin's own test suites and published benchmarks — the full measurements, the method and every version's history are on GitHub.
02 A CLOSER LOOK
Every screen, every mode.




HEAR IT
Before and after.
The same excerpt, the original and through Axell Forbidden Seal with a factory preset. Press play, then switch — both play in sync, so you hear only the plugin. Headphones recommended.
Drums
Tape hysteresis glue on the kit.
Keys
Tube sheen on the chords.
Rap vocal
Warm tape on the voice - the voice itself never passes the circuit, only the harmonics are added.
03 GET IT
Windows first. Linux too.
Free and open source. Copy one folder into your VST3 folder — or install the whole suite in one go with the Axell Signature Suite installer, and let the Dojo keep everything up to date.
Runs in any VST3 host — FL Studio, Ableton Live, Cubase, Studio One, Bitwig, REAPER
THE SUITE