...
New: RSL All Access, every RSL plugin from $15/mo. Try it free for 14 daysEvery RSL plugin from $15/mo. Try it freeFounders’ price until

RSL Learn

Hear what the plugin is doing

Saturation, compression and mastering, explained by the people building the plugins. What the controls do, when to reach for them, and how to check the result with your ears instead of a louder A/B.

Dual core · residualAnalyzing

CROSSOVERCORE 1 · LOWCORE 2 · HIGH

Start here

New to dual core saturation?

Read these in order. Each one assumes the last.

  1. 01Step

    Understand the circuit

    Two cores, a crossover and seven characters: what each part of a dual core saturator does to the signal.

    Read
  2. 02Step

    Split the band

    When multiband saturation beats a single-band saturator, and where to set the crossover.

    Read
  3. 03Step

    Finish the bus

    Recipes for buses, stems and masters, and how to check the result at matched loudness.

    Read

Manuals

Every plugin, every control

The full user manual for each RSL plugin: signal flow, what every control does, starting points and troubleshooting. Free to read, no account needed.

  • Manual v1.9.5 · PDF · 1.4 MB

    RSL Dual Core Saturator

    Dual core multiband saturation for macOS and Windows.

    Open the manual Product page
  • Manual v1.0.0 · PDF · 1.1 MB

    RSL Bastion

    A dual-stage mastering compressor: vari-mu program compression and discrete VCA peak compression in one chassis, in either order.

    Open the manual Product page
  • Manual v1.0.0 · PDF · 1.2 MB

    RSL Master

    A mastering chain for the master bus: it measures your mix and moves loudness, dynamics, tonal balance and stereo width toward a chart-ready target, with one macro deciding how far.

    Open the manual Product page
  • Manual v1.0.1 · PDF · 1.4 MB

    RSL Crucible

    Analog peak shaping that brings the level up and keeps the punch, CLEAN or IMPACT.

    Open the manual Product page
  • Manual v1.0.1 · PDF · 2.5 MB

    RSL Paradox

    A dual curve EQ that boosts and cuts at the same frequency, on every band.

    Open the manual Product page
  • Manual v1.0.1 · PDF · 1.2 MB

    RSL Channel

    A full analog channel strip: preamp, filters, four-band EQ, dynamics and fader.

    Open the manual Product page
  • Free v0.2.0 · PDF · 3.5 MB

    RSL One

    The Warm and Tube circuit from the Dual Core Saturator on a single core, free with an account.

    Open the manual Get it free
  • Free v0.2.0 · PDF · 4.7 MB

    RSL Foresight

    See what a compressor will do to your audio before you commit: capture a passage, then preview any setting on it.

    Open the manual Get it free
  • Beta v0.2.2 · PDF · 923.3 KB

    RSL Carmine

    Hip-hop drum patterns with vintage sampler timing: eight lanes, your sounds, out to your DAW as MIDI or audio.

    Open the manual Beta testers: RSL Hub

The library

Articles

Longer pieces on saturation, compression, mastering and the workflow around them.

Every article on the blog

Free PDF

The Mix Bus Chain Cheat Sheet

Starting points for the three stages of a mix bus chain, plus a pre-bounce checklist. Works with any plugins.

  • ColorSaturation for density and character
  • ControlCompression for glue and peaks
  • FinishBalance, clipping and loudness

Then occasional mixing tips, and an email when we release a new plugin or a major update. No spam, unsubscribe anytime.

Watch

Worth your time, and not ours

Made by other people. We link it because it is good, not because anyone paid for the placement or endorsed us in return.

How to Use Saturation (2h40m Course)

By Mastering.com · 2h 40m

A full free course on saturation, start to finish. It is the most thorough thing we know of on the subject and it is not ours. Watch it, then come back for the part it does not cover: what changes when you split the signal and drive two bands separately.

Watch on YouTube

Session toolkit

With a session already open

The references people go looking for mid-mix.

Put it to work

Reading is cheaper than guessing

Start free with RSL One, or drive two bands separately with the RSL Dual Core Saturator.

Seraphinite AcceleratorOptimized by Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.