AXELL SIGNATURE · FET + OPTO + LIMITER

Axell Duo Compressor

Two classic compressors and a true-peak limiter, in one.

WINDOWS · LINUX · VST3 · FET + OPTO + TRUE-PEAK LIMITER · 44.1 – 192 kHz

Axell Duo Compressor

Two legends and a limiter, in one plugin. A FET peak compressor, an opto leveling amplifier calibrated on recordings of real hardware, and a true-peak limiter - built for rap and boom-bap vocals, and just as much at home on bass, drums, the bus and the master.

01   WHY IT'S DIFFERENT

Five reasons, all measured.

An opto that follows the hardware

calibrated on LA-2A recordings, it tracks the real unit's gain reduction to 0.6 dB RMS on music it never saw.

ESS HOLD

compressors lift esses above the vowels; Duo holds the word's gain through each ess: +3.28 -> +0.60 dB on 28 real takes.

VOICE HOLD

the room stays down between your phrases: pauses +23.4 -> +5.9 dB on a real take, the voice's compression unchanged.

Clean where it should be

aliasing -149.5 dBFS at 4x on a brutal test; silence in, exactly silence out.

Your old sessions are safe

projects from Duo Vocal Comp 1.0 render bit-identically.

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 Duo Compressor with a factory preset. Press play, then switch — both play in sync, so you hear only the plugin. Headphones recommended.

DRUMS

Drums

FET smash for a denser, harder-hitting kit.

Preset Drum Bus: Boom Bap Smash · level-matched
Source: Ronin - OnAir Music feat. KXNE (drums) · CC BY-SA 4.0

MELODIC

Piano

The opto evens the piano out without squashing it.

Preset Gentle Leveling · level-matched
Source: Under My Skin - OnAir Music (piano) · CC BY-SA 4.0

VOCALS

Rap vocal

A steady, upfront vocal - and ESS HOLD keeps the esses from jumping up.

Preset Rap Lead · level-matched
Source: Ronin - OnAir Music feat. KXNE (verse) · CC BY-SA 4.0

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