E
★★★★★
Finally, a quality Dolby Atmos tool!
This plugin is going to be a big hit!
PULSAR MODULAR · MASTER-BUS STABILIZATION LIMITER
P21 Atlas
Atlas delivers coherence. Loud, without the peaks being flattened.
A master-bus stabilization limiter, not a peak-catcher. The engine holds the program coherent across its full length, so elements stay where the mix put them. Nothing jumps. Nothing drifts. The frame holds. Stereo through 9.1.6, the program lands as one statement.
IMMERSIVE · LAUNCH PRICE
$375 Original price was: $375.$225Current price is: $225.
LAUNCH OFFER · SAVE $150
·
VST3 · AU · AAX · macOS & Windows
GR SLOW / GR FAST · BALANCE, NOT WORKLOAD
Two editions, one engine
Choose your stage.
The same engine drives both editions. Atlas Stereo operates on mono and stereo buses. Atlas Immersive operates on every format, from mono/stereo through 9.1.6. The edition is set at purchase, and Stereo upgrades to Immersive at any time.
AVAILABLE NOW
Atlas Immersive
Every channel format, from mono/stereo through 9.1.6. The full engine.
$375 Original price was: $375.$225Current price is: $225.
LAUNCH OFFER · SAVE $150
- Mono, stereo, 5.1, 7.1, 7.1.4, 9.1.6 and every format between
- Dolby Atmos, DTS:X, Auro-3D delivery workflows
- Shared gain reduction preserves the spatial image
- LFE monitored, never processed; per-platform delivery cues
- Everything in Stereo, on every channel
COMING SOON
Atlas Stereo
Mono and stereo buses. The same engine, one stage.
$225
- Operates on mono and stereo buses
- The identical engine: Composure, GRIP, Energy, Foresight
- Same preset library, tuned on real material
- Same metering panel and MATCH comparison
- Upgrades to Immersive at any time
Coming soon
If an Atlas Stereo license loads on a multichannel bus, the plugin recognises the unsupported layout and passes audio through unchanged. Start with Immersive today, or wait for Stereo.
What Atlas delivers
Three consequences engineers value.
Atlas does not reveal itself by adding a sound. It reveals itself by holding the program together. A mix made from stems recorded in different rooms presents as one performance in one space. A film scored from library cues, dialogue, and sound design lands as one continuous world.
01 · MICRO TIMING
Transients land where the mix put them.
Kick and bass arrive together when they are supposed to. Vocal consonants stay attached to their vowels. The pocket the recording captured is the pocket you hear. The dynamic relationships the recording captured are preserved.
02 · EXPANDED HEADROOM
Loud, without flattened peaks.
The program is delivered loud, but the peaks have not been flattened. Loudness arrives without compression character. Atlas leaves the program with headroom intact, ready for a dedicated clipper downstream if clipping character is wanted.
03 · SILENCE STAYS SILENT
Quiet passages remain quiet.
Conventional limiters lift the noise floor between vocal phrases, between drum hits, after a cymbal decays. Atlas does not. The breathing engineers learn to tolerate on conventional compressors is simply not present.
Gain → engine → TRIM
One signal path. Learned by listening.
Gain feeds the engine, the engine does the work, TRIM lifts the post-engine level. The seven controls fall into three groups: two that decide how hard the engine works, four that shape what that work sounds like, and one output stage. The character controls are best learned by ear.
Engagement · how hard the engine works
GAIN
Permission, not instruction. Drives signal into the engine, which spends that permission on keeping the signal stable below Ceiling; what remains becomes loudness lift. Lower it when the recording should sound preserved; raise it when lead elements should sit with the band rather than on top of it.
CEILING
Sets the upper bound on program peaks. Not a limiter threshold: the engine shapes the program so peaks land at Ceiling lawfully. There is no wall being hit. Gain and Ceiling both close the gap to the cap, so pick one direction rather than using them in opposition.
Character · what the work sounds like
COMPOSUREDYNAMIC → COMPOSED
Anchors the sustained body of the music. Controls how firmly the music feels held against motion. The primary control for handling verse to chorus density. On sparse acoustic material, Composure 0 is correct: the spatial relationships are already set in the mix.
GRIPLOOSE → TIGHT
Shapes material firmness and the character of the bass region. Coordinates simultaneous transients so a vocal plosive and a bass note land as one moment. Higher GRIP produces sustained low-frequency presence; lower preserves the source's original bass character.
ENERGYCALM → ENERGETIC
Allows the music to breathe along its long-form arc. Too high introduces haze around mid-frequency transients; too low loses sparkle at the top end. The right setting lives where transient definition is preserved without smearing.
FORESIGHTREACTIVE → ANTICIPATING
Anticipates incoming peaks, with no added latency. On rhythmic material it moves through reactive, on-time, grooving, and misaligned zones. Atlas reads the host tempo and suggests a grooving range on the panel; the sweet spot is always confirmed by ear.
Output
TRIM
Lifts the level after the engine, to recover headroom or drive a downstream clipper, without feeding back into engine work. TRIM is part of the chain, not for A/B level matching. For fair comparison against bypass, use MATCH.
The five-minute recipe
Five minutes is enough to hear it.
Put familiar material on your master bus, bypass everything after Atlas, load the preset that matches your source, then activate MATCH and toggle BYPASS at equal loudness. That is the whole test. The interactive walkthrough takes you through each step and what to listen for.
Atlas Immersive
One program. Every format.
Atlas Immersive treats every main channel of a multichannel bus as part of one program. The engine analyses all main channels together and applies the same gain reduction to all of them at every sample, which preserves the spatial image. Sources do not move within the soundfield as the engine works.
Supported channel layouts
MONO
STEREO
5.0
5.1
7.0
7.1
5.0.4
5.1.4
7.0.4
7.1.4
9.1.6
The LFE channel is monitored but never processed by the engine. The panel adapts to the bus format at instantiation: LFE PEAK appears on every layout that carries an LFE channel, the stereo CORR row is hidden on non-stereo formats, and the window sizes itself for the layout.
Preset library
Tuned by ear, on real material.
The preset names describe the source character a preset is calibrated for, not the genre as a category. Choose by the source-character description, not by the name alone. Each preset is a starting point, not an ending.
Default
Universal start on unfamiliar material
Country Acoustic
Sparse, dynamic, vocal forward
Sparse Acoustic
Solo or near-solo, no rhythmic density
Country Pop
Pre-treated, moderate transient density
Rock Solid
Full-band, vocal above the arrangement
ATMOS Launchpad
Atmos master into final stabilization, ~-18 LUFS-I
K-Pop Verse
Wall-of-sound, verse density
K-Pop Chorus
Wall-of-sound, chorus density
Orchestral
Naturally captured, wide dynamics
EDM Depth
Already mastered, loud and dense
Hip-hop
Kick-led, sub-bass dominant
Jazz
Acoustic ensemble, wide dynamics
Drum Bus
Transient-dominated stem, not full program
Bus and group presets
Atlas also works on individual buses and groups as a stabilizing bus compressor: Gain at 0, Ceiling lowered until the engine engages, level recovered with TRIM.
Drum Control
Drum bus, sustained kit presence, articulated hits
Bass Elec Punch
Electric bass bus, sustained low end and punch
GTR Elect grp
Electric guitar group, transients preserved
Vocal
Vocal bus, firm articulation, reactive catching
Technical
Specifications.
Type
Master-bus stabilization limiter, stereo and multichannel
Editions
Immersive (mono through 9.1.6) · Stereo (mono and stereo). One engine. Stereo upgrades to Immersive at any time.
Controls
Gain · Composure · GRIP · Energy · Foresight · Ceiling · TRIM
Latency
4 samples at any setting. Low enough for FOH and live front-of-house use on the main bus.
Metering
GR SLOW / GR FAST balance · LUFS-I / S / M · LRA · PLR · true-peak · CORR · MATCH comparison
Immersive layouts
Mono, stereo, 5.0, 5.1, 7.0, 7.1, 5.0.4, 5.1.4, 7.0.4, 7.1.4, 9.1.6
Formats
VST3 · AU · AAX (Apple Silicon ready)
Mac
macOS · Apple Silicon and Intel
Windows
Windows 10+ · x64-compatible CPU
License
One-time authorization. Works on up to 2 separate machines.
Engineers who use it
Trusted on real masters.
"P21 Atlas simply does what it promises. The way it stabilizes the music feels very natural and groove-focused instead of just smashing everything flat like a typical limiter. What I like most is that I can push masters loud while still keeping them open, punchy, and groovy. It controls dynamics in a really smooth way without killing the movement or energy of the track. Definitely a very impressive tool!"
"P21 Atlas is able to let the sediment and dust that were lifted during the master's processing settle back to the seabed, restoring depth, brilliance, and microdynamics that over the years we have learned to lose as the price to pay for a good master. I discovered this applying P21 Atlas to the electronic music I'm most familiar with, but once you learn to notice it, you feel the need for it everywhere."
Customer reviews
What owners say.
5.0
★★★★★
Based on 1 reviews
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Downloads & resources
Guides and installers.
The user guide in three languages, the interactive Quick Guide, and every released version of Atlas for previously authorized computers.
Interactive
Quick Guide
A five-minute, step-by-step walkthrough of the panel and the workflow. Hover any control to learn what it does.
Open quick guideSoftware
P21 Atlas · Installers
For users with an existing license. New buyers receive their download link by email after purchase.
- Initial release
- Master-bus stabilization engine: Composure, GRIP, Energy, Foresight, Ceiling, plus Gain and TRIM
- Immersive edition supports mono through 9.1.6 with shared gain reduction across main channels
- MATCH equal-loudness comparison, full LUFS / true-peak / GR metering panel
- Factory preset library tuned by ear on real source material
Hear the frame hold.
Run the five-minute recipe on a mix you know. The demo is the full Immersive engine, no commitment for 30 days.