PARALLEL FREQUENCY BALANCER

P915 MEDUSA

Twelve fixed bands, added in parallel. Nothing is cut, nothing is repaired.

P915 reinforces fixed regions of the spectrum and blends that contribution under the original signal. Weight, articulation and density change through contrast, not through boosts and cuts you could point at on a graph. Built for mastering and mix bus finishing, and just as useful on a single source that needs body, air or string definition without the sound of EQ.

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AU, VST3, AAX Twelve fixed bands
P915 Medusa: the silver panel with FOUNDATION, DENSITY, twelve fixed bands in two rows, TIME, HIGH BLOOM, AIR and the BLEND fader

Reinforcement, not correction.

The input splits in two. One path stays untouched. The other passes through twelve fixed LC bands and comes back under the original as a contribution you blend, not a curve you draw.

Each band sits at a musically chosen frequency and cannot be moved. You do not sweep for the problem; you apply pressure at a known point, listen, and keep it or close it. Because the bands overlap and interact in parallel, raising one changes how its neighbours read, and small moves across several bands usually sound more natural than one large move. A frequency graph shows the result, not how it was made, and a parametric EQ drawn to the same shape does not sound the same.

DELTA is the microscope: you hear only what Medusa adds, so bold decisions come fast. PARALLEL BLEND is where the result is judged, usually at 20 to 40 percent, sometimes less. Around the bank sit the global controls: FOUNDATION and DEPTH for the floor, HIGH BLOOM and AIR for the top, EDGE for contour at both ends, FOCUS to shift where the attention goes, DENSITY, GRAIN and TX for texture on the contribution only. The dry signal never passes through any of them.

TWELVE FIXED BANDS, AS ON THE FACEPLATE
125 Hz
250 Hz
500 Hz
1 kHz
2 kHz
4 kHz
175 Hz
350 Hz
700 Hz
1.4 kHz
2.8 kHz
5.6 kHz
FOCUS
Shifts the weight between the lower and upper pressure points of the bank around a fixed pivot. Not a tilt EQ: the sound steps forward or settles back.
TIME
Short offsets, left and right or split, on the contribution alone. Heard as extension, depth and motion rather than echoes, and mono compatible because it is blended in parallel.
DELTA · BLEND
Δ VOL sets the level of the contribution; BLEND sets how much of it sits under the dry signal. Six snapshot slots on the panel.

From the pros.

1 / 11
Mat Leffler-Schulman

“P915 Medusa is a spectral suggestion engine. It adds density and air that helps a master translate without compromising phase, transients, or headroom. When a master tells the truth but needs to feel complete, P915 Medusa knows where to whisper.”

Mat Leffler-Schulman
Mastering engineer
Dan Deacon · Jon Batiste · Maya Angelou · Teen Mortgage · Jackson Dean
Adham Farid

“Been using it on recent mastering sessions and absolutely love what it can do especially in the high end and the sense of dimension it adds without losing focus. Might look like an EQ but it’s nothing like an EQ!”

Adham Farid
Mastering and mixing engineer, producer
Selin · Uzi · Aksan · Motive · Da Poet
Craig Bauer

“P915 Medusa might be the most inventive plugin I’ve used in a long time. Dropping it on the mix bus once a mix is finished takes an already great mix somewhere I wouldn’t have reached otherwise.”

Craig Bauer
Grammy Award-winning mixing engineer
Ed Sheeran · Rihanna · Justin Timberlake · Lupe Fiasco · The Clark Sisters
Razik Mastering

“P915 Medusa is a fantastic tool for adding clarity and character without sacrificing the original tone. The parallel workflow lets you push the effect harder while keeping the result natural and balanced, with full low end, warm mids, and airy highs without harshness.”

Razik Mastering
Analog mastering studio
Farzad “Farzi” Rahnavard

“P915 Medusa is a fast, musical betterizer. DELTA makes it easy to hear exactly what it is adding while you dial in tight low-end punch and an open, lively top end, then switch back to Parallel for an instantly more finished mix.”

Farzad “Farzi” Rahnavard
Mixing and mastering engineer, Duo Mastering
Cro · Shirin David · Shindy · KC Rebell
Alessandro Picciafuochi

“EDGE is a standout feature. It gives the extremes a clear limit and a more decisive tone, and the filter frequency choices are spot-on across genres. An excellent tool that deserves a place in any mastering arsenal.”

Alessandro Picciafuochi
Mixing and mastering engineer
Robert Miles · Satoshi Tomiie · Alex Neri
Allan Klinbail

“When I reach for saturation it is usually because I want a tonal shift an EQ cannot make, and then it is luck whether the unit in front of me has that shift in it. Medusa gets me to those sounds in a mastering session, the kind I would chase with a tape or transistor box, but I am crafting the tone rather than hoping the circuit holds it. Pushed all the way into DELTA I hear only what is being added, so I know immediately whether I am working on the part of the source I actually want to bring out.”

Allan Klinbail
Mastering engineer
Ranjit Nijjer · Raging Moby · Ivofonic · Morion
Garrett Haines

“Wow! The soundstage popped, like clearing your ears after a flight. Suddenly there was space and openness, without smearing the mix in artificial reverb haze.”

Garrett Haines
Award-winning mastering engineer, senior contributor at Tape Op Magazine
Nurettin “F.C Mastering” Özdemir

“The P915 isn’t just a parallel EQ. The Density control allows you to introduce compression-like behavior without the usual artifacts that can be problematic in mastering. Rather than narrowing the workflow, P915 opens up spectral dynamic possibilities that aren’t easily achieved with conventional tools.”

Joseph Carrá

“The last thing I needed was another EQ, but the Medusa is different. This spectral balancing beast has surprisingly made its way onto a bunch of my masters and I've only had it for a couple of weeks. I keep finding new ways on how to make this plugin work for me.”

Joseph Carrá
Grammy-nominated mastering engineer
Serhat Sakin

“I really enjoy using the P915 MEDUSA plugins. I mainly use them on group buses and consistently achieve excellent results that truly convince me. They integrate smoothly into my workflow and help bring clarity to my mixes. A very strong and helpful tool!”

Serhat Sakin
Songwriter, producer and mixing engineer
Estelle & Kanye West · John Summit · David Guetta · Robin Schulz · BIA · Sofia Carson & J. Balvin

What owners say.

4.9
★★★★★
Based on 31 reviews
5
94%
4
6%
3
0%
2
0%
1
0%
Sort
E
Edivaldo
Verified Owner
September 16, 2026
★★★★

To be honest, this plugin isn't very intuitive. However, once you spend some time with it, you realize what a useful tool it is.
It effortlessly handles filtering issues in complex mixes.

I hope that in the future, Ziad adds a frequency spectrum display. And who knows—maybe we’ll be able to use the plugin on multichannel tracks, if that’s not asking too much.
This tool is well worth getting.

SD
Scott D
April 6, 2026
★★★★★

Um, ok, so I just demoed this after watching some of your videos on the time shift function. I have to say, I'm not sure if there's an easy way to recreate the subtle, mono-compatible enhancement that's happening here, but if there is, I'd sure bet people would be talking about it. As another reviewer mentioned, you might think "it's not really doing anything," but rest assured, it is. Can't wait to get my hands on the full version. I have a few projects that are due in a week, and I'll be putting this on the master bus for some end-of-chain pixie dust. I just wish it had a little more control over the frequencies, but there's enough here that I really don't think it's "lacking." Just turn "Split" on, set the times a few ms apart, and start turning things up. Voilà! Oh, and the "Foundation" and "Depth" add a low end that quite honestly made me laugh out loud with glee when I first turned it up.

CA
Christian Alati
Verified Owner
February 21, 2026
★★★★★

Pulsar Modular P915 is a real Swiss Army knife: versatile, practical, and surprisingly easy to use. Great for shaping sound fast without sacrificing control.

AJ
Adi James
Verified Owner
February 19, 2026
★★★★★

I loved the original version of P915 Medusa, using it both as a sound design tool and for mixing - things just sounded better with it. The reworked P915 is almost a different beast, with a focus on that final 5% on top of a "finished" mix that really makes good into great - and the new Medusa is fabulous sounding and rewards bold experimentation as much as subtle moves. I hope she continues to evolve, perhaps into a tool as equally at home during production as she is making the finished article even more alive.

AM
Arttu Mäkelä
Verified Owner
September 25, 2025
★★★★★

At first I didn’t really gel with the P915 but after watching Ziad’s instructional video on the plugin I immediately saw how indispensable it would become for my projects. The chosen filters are excellent and I can really coax out tones I wouldn't easily find with other tools. Many times I’ve been in a situation where I’ve been trying to solve a problem for a long time using EQs and filters and the like and nothing would work until I slapped the P915 on the project and everything would just fall into place after a few twists of a knob.

It is a really great tool to highlight elements in your mixes or just to bring more life to your instruments and even bring out an organic width to your mix. I really recommend getting this plugin even if it might not call to you straight away.

AL
Alex Lakis
Verified Owner
September 19, 2025
★★★★★

Don't sleep on this plugin! It seems straightforward enough, but there is some magic in the filters! The tilt control was a great design idea, very useful. The resonance controls on the HPF/LPFs can help make musical choices. As others have said, the P915 excels on electric guitars, you can really build a wall of sound if that's your thing!

EP
Eduardo Poplawsky
Verified Owner
September 16, 2025
★★★★★

Even though I got it a while ago, I have not really explored it to its fullest. Recently, I used it on a mix with acoustic instruments, such as a fiddle, dobro, and acoustic guitar, with some very nice results.
I need to explore it more, but so far I have enjoyed the results, which are different when compared to just using an eq.

ML
Mike Lawetto
Verified Owner
September 11, 2025
★★★★★

P915 Medusa
After buying plugins since 2012, you eventually reach a point where you stop—most “new” releases are just variations of tools you already own. And then along comes Medusa.
I can’t fully explain what’s happening under the hood—only that nothing else sounds or works quite like it. Medusa has completely changed the way I think about tone and how to achieve the sounds I’m after.
I often run it in parallel with a touch of distortion to emphasize key elements and bring them forward in the mix. I’ve also built a custom preset that adds a stunning sense of width—not the artificial kind most stereo wideners give you, but a spacious, organic feel. On stereo rock guitars, it’s just gorgeous: it opens up the sound and nestles perfectly into the mix.
And to top it off? It’s incredibly CPU friendly, so I can use it freely without worrying about performance.

Y
Yukinocomic
Verified Owner
January 1, 2025
★★★★★

トラックEQのような感覚で使える音作りに便利なフィルターです。
色付けをしないで原音を活かしたい時にP422の代わりに選択肢に挙がります。
フィルターの出力も一般的なWet/Dryの方式から、SUMスイッチでDry+Wet/Dryの方式に切り替える事が出来る点が良いです。
P565のようにLFOは無いですがディレイも搭載しています。L/Rだけでなく、上段と下段の周波数で別々のディレイタイムを設定出来たり、フィルターを二点間で動かす事が出来たりなど珍しい機能もあります。
一見すると地味なフィルターなのですが、使いやすくて色付け無しで好みの音を作りやすいのでPulsarmodularのプラグインで一番好きなプラグインです。

JF
Jerome Fernandez
Verified Owner
December 27, 2024
★★★★★

P915 is a valuable tool in my creative process. It can be addictive, as it's easy to lose track while tweaking. It is an excellent tool for enhancing the "vibe" of tracks with its distinctive filters. You can create intriguing filter effects, simulate acoustic resonances, and even generate rhythmic patterns by automating the band levels. The Performance Bank simply stores snapshots or variations of settings. The Morph is basically for transitions. 

P
powah
Verified Owner
December 21, 2023
★★★★★

As a hobbyist electronic music producer, at 1st sight it was not obvious that my workflow could benefit from a tool like this. Over the years I’ve accumulated many EQ’s and filters and default to a few standards. As I now have a number of Pulsar Modular plugins loaded as part of my DAW template I trialled P915 Medusa.

Initially I thumbled around without any outstanding results, but then after watching the video applied a more disciplined approach and quickly discovered how it could be applied to my works.

Even though I can typically use existing EQs and filters to balance my mixes, occasionally these do not work (it’s likely my inexperience). Where other EQs/Filters failed, I was able to get the desired result with P915 Medusa quickly.

Once I’d discovered a P915 Medusa workflow results came quickly using ears rather than eyes. Mix balances are overall improved when compared to my previous methods.

P915 Medusa is now part of my DAW template project, and I now reach for this regularly often in preference to existing favourite EQs and filters.

S6
SYS 64738
Verified Owner
December 5, 2023
★★★★★

P915 is a one of a kind filter bank! It gives that intimate vintage sound and really brings the synths to life! The sound becomes captivating! It's a must-have to complement your synths!

U
unite
Verified Owner
November 24, 2023
★★★★★

still very good sound and evolved interface.

PA
Petar Atmadzhov
Verified Owner
November 21, 2023
★★★★★

I am an owner of P914 FFB for more than two years and it's one of my most used and creative plugins. It's my go to tool whenever I need to enhance sequences, atmospheres or drums. I have no clue how close to the HW is but I never regret spending the high price. Now after using P915 for a couple of weeks I am even more satisfied with the results, the filters and drive circuit are great!

M
matzeundkatze
Verified Owner
November 15, 2023
★★★★★

Don ´t underestimate the power of this filter! It has quickly become my most important mixing plugin for electronic music. It is essential. If I could keep only one plugin in my arsenal, this one would be it without a doubt!

L
louisnet2000
Verified Owner
November 15, 2023
★★★★★

One of the most innovative Filters by Pulsar Modular on the market l absolutely love this plugin beautifully sounding filter banks give it a test drive

B
borntoliverecords
Verified Owner
November 13, 2023
★★★★★

As usual, a well thought out plug-in by Pulsar Modular. A creative feature set to satisfy anyone.

KE
Kevin Eagles
Verified Owner
November 6, 2023
★★★★★

After a short test drive, I was pleasantly surprised by how versatile this is. Similar concept to how graphic EQs are fixed frequency, but this is WAY more versatile. The different wet options are critical to making this a creative character chameleon. On top of that, there are the cool delay, split, morph and performance options. What a beast. Oh yes, and the drive... meow indeed.

A
alexlakis
November 3, 2023
★★★★★

A great re-make for the next generation to play with! Grateful for the HPF/LPF! Appreciate the zero-latency too!

HA
Han Allred
Verified Owner
October 30, 2023
★★★★★

Whoa, this new update to the p914 is a huge improvement. Really great for creative filtering. I'm lovin' it.

R
rl
Verified Owner
October 28, 2023
★★★★★

Great update to P914 FFB, finally! UI looks and feels much better. Looking forward to the Lunar Lander update as well!

A
anymac
Verified Owner
June 15, 2023
★★★★★

I am lucky enough to have access to the original Moog Model 10 reissue that has a very similar P907 Filterbank. What can I say. P914 Medusa is like the real deal, but with all modern goodies (plus it's stereo!).
Can't recommend P914 enough.

JH
Jeff Harris
Verified Owner
May 8, 2023
★★★★

Incredible Filter sounds. I tried several other filter banks and they just don't compete with this one in terms of sound. and great sound is something i never regret.

E
enricocremonesi
Verified Owner
January 8, 2023
★★★★★

I absolutely love this plugin,
it sounds great ...real...highly recommended

C
crysstalized
Verified Owner
January 4, 2023
★★★★★

P914 FFB builds on the classic Moog Fixed Filter Bank and pushes beyond its limitations to provide familiar classic filtered tones as well as some new creative ones.

In addition to the inductor based filters, P914 adds a few features that allow for greater usability including a Mix control, preset Morphing (allows for moving filters), and my personal favorite, the Stereo filters and delay offsets per side.

Having the latter two allow for spacial spreads (without using modulation effects like chorus). My favorite use for P914 is on acoustic guitars. Dial down the unwanted resonances, boost the sparkle and body, then separate it into a wide, lush sound. Offset the delay time in one channel to go even wider.

Of course it works well on synths as the original was intended. You can dial in acoustic resonances for electric instruments quite well as a sound design tool. Does fun and creative work on drums as well.

I think that it might not be seen as exciting of an effect these days, but I've found it to be a useful part of my collection. Also note that Pulsar Modular regularly update and bring new features to their existing plugins.

R
r-l
Verified Owner
July 23, 2022
★★★★★

What a great and beautifully sounding filterset!
Note that in the current version v1.5.3, the plugin does not remember the plugin window size if it is changed - after closing the plugin, it always opens in the same default size (at least with the 64 bit VST3 version on Win10), which is a bit annoying. Also, the GUI design appears to be a lot less streamlined/polished compared to the newer Pulsar Modular plugins. Fortunately, there seems to be an update in the works with a GUI upgrade (and additional features as well). This is a great thing with Pulsar Modular actually - even older releases don't get abandoned but are still improved and maintained, and updates are usually free.

R
roman.kneissl
Verified Owner
July 22, 2022
★★★★★

I own all of the Pulsar Modular plugins and I am so excited. It sounds so good and expensive!!

SB
Seth Block
Verified Owner
July 22, 2022
★★★★★

Does what it says on the box - great filterset with analog hardware mojo. I've never had access to the real deal but don't feel like I'm missing out.

T
thycau
October 11, 2021
★★★★★

the problem with this plugin is that it is addictive we want to use it everywhere

PA
Petar Atmadzhov
Verified Owner
September 15, 2021
★★★★★

Beautiful sounding filters, can't recommend it enough.

G
gernot
Verified Owner
July 11, 2021
★★★★★

This is by far the best fixed filter bank I ever experienced as software. Expensive but worth it. Can't wait for the P565 Filter Set.

Downloads.

P915 installer · v2.0.2
macOS ZIP
Windows ZIP
User guide · v2.0.4
English DARKPRINT
German DARKPRINT
Japanese DARKPRINT
Quick guide · v2.0.3
English DARKPRINT
German DARKPRINT
Japanese DARKPRINT
MP MIDI controller

Preset for the MP MIDI Model 2A controller.

P915 preset ZIP
VERSION HISTORY
v2.0.2
February 7, 2026
  • P915 Medusa v2 refines the original design with improved circuitry, corrected curves and a clarified workflow. Because of these refinements v2 may not sound identical to earlier versions, but existing sessions open normally. A free upgrade for existing users.
v1.0.1
November 17, 2023
  • An LED on the band dials shows when a band is shut off
  • Fixed a bug with a modifier key combination
v1.0.0
November 1, 2023
  • Official release

The technical bits.

FORMATS
AU, VST3 and AAX on macOS, Apple Silicon and Intel in one universal binary. VST3 and AAX on Windows, x64.
SYSTEM
macOS 10.14 or newer, Windows 7 or newer. 2 GB RAM, a display of 1440 × 900 or 1280 × 960 or larger.
BANDS
Twelve fixed LC bands at 125, 175, 250, 350, 500, 700 Hz, 1, 1.4, 2, 2.8, 4 and 5.6 kHz, each with its own gain and an on/off state shown by an LED.
GLOBAL
FOUNDATION and DEPTH for the low end, HIGH BLOOM and AIR for the top, EDGE at both ends, FOCUS around a fixed pivot.
TEXTURE
DENSITY saturation, GRAIN and TX transformer conditioning, applied to the contribution path only.
TIME
Millisecond offsets for left and right, linked or split, on the contribution alone.
BLEND
DELTA and PARALLEL BLEND listening, BLEND control, Δ VOL for the contribution, OUT after summation.
UTILITIES
Oversampling modes, six snapshot slots, preset load, save and compare, bypass. Cmd+Option on macOS or Ctrl+Alt on Windows plus hover silences a band momentarily.
LICENSE
One-time challenge and response, up to 2 machines.
DEMO
Thirty days, fully functional, on two computers.

Thirty days on two computers.

Fully functional, no credit card needed. Start the demo, complete the checkout and your authorization code arrives by email.

Already tried Medusa and ran out of time? Email us through the support page and we will reset your trial.