P915 MEDUSA
Overview
P915 Medusa is a Parallel Frequency Balancer.
It reinforces fixed spectral regions and blends them with the original signal, reshaping perceived weight, articulation, and density through contrast rather than removal.
Nothing is cut. Nothing is repaired.
Built for mastering and mix bus finishing, Medusa is also deadly on single sources when you want body, air, or string definition without the sound of EQ.
Additive by Design
Cohesion comes from reinforcement, not precision cuts.
Apparent “reduction” elsewhere is perceptual, the ear responding to redistributed balance rather than filtering.
Built For Structure, Not Correction
Interdependent bands create organization, depth, and motion that feel obvious in context, even when meters barely move.
When a master already tells the truth and just needs to feel complete, P915 Medusa knows exactly where to whisper.
P915 Medusa shapes balance and structure, not sound correction.
30-Day Free Demo
Start your fully functional 30-day demo on 2 computers: click the “DEMO” button, complete checkout, and receive your authorization code by email.
Enter the new reimagined P915 MEDUSA Fixed Filter Bank. A filter which adds subtle or not so subtle resonances to the signal or removing frequency bands altogether. This process, when mixed in with the unaltered, “dry” signal, can mimic the actual behavior of a traditional instrument. It can also act on its own as a unique and creative source of sound shaping possibilities not available in other filter structures.
Videos
Q&A
P915 is not a parallel EQ, even though it lives in parallel.
A conventional parallel EQ still works like an EQ. You boost or cut frequencies, just on a wet path, and then blend that back in. You are still shaping curves, just less destructively.
P915 works differently.
It does not reshape the signal. It adds a structured spectral contribution alongside it.
Think of it as reinforcing balance rather than correcting tone. Instead of saying “this frequency is wrong,” you’re asking “does the sound benefit from energy here?”
That’s why the result feels like reweighting, not EQ.
You hear changes in clarity, density, and projection without hearing obvious boosts or cuts.
That distinction is the core of Medusa.
P915 is built around focused energy zones, not sweepable EQ bands.
The 12 fixed filter bank bands are the heart of the plugin. Each one represents a musically chosen frequency zone. You don’t search for the right frequency, you test it. You apply pressure, listen to the response, and either keep it or close it.
Then you have the two anchors:
Foundation shapes the low end contribution.
It’s not a bass boost. It controls how much low-frequency structure is reinforced.
Depth controls how that low end behaves.
Lower Depth keeps things broad and supportive. Higher Depth tightens and focuses the low-frequency energy.
On the top end, you have High Bloom, which reinforces openness and lift without sounding like a shelf.
Air controls how far that openness extends.
Lower Air feels closer and denser. Higher Air feels more extended and dimensional.
Together, these controls let you shape the skeleton of the spectrum before worrying about details.
This is extremely important.
DELTA is not the sound. DELTA is the microscope.
When you switch to DELTA, you are listening only to what Medusa is contributing. This is where you can make bold decisions quickly. Push a band. Pull another. Listen to how the contribution behaves.
It can sound narrow, aggressive, or strange on its own, and that’s normal. You’re isolating the pressure points.
Once you know what you want to add, you switch to PARALLEL BLEND.
That’s where Medusa is meant to be judged.
You blend the contribution back at 20–40%, sometimes even less, and you listen to how the original signal stabilizes and reorganizes.
If you remember one thing:
Decide in DELTA. Judge in PARALLEL BLEND.
TIME is not a delay and it’s not a widener.
It introduces micro-timing dispersion only in the contribution signal, the dry stays untouched.
So you don’t hear echoes, you hear added dimension.
What surprises people is the center often feels firmer, not weaker.
And because it’s parallel and blended, it stays mono compatible. It’s space without wobble.
Grain is not noise for noise’s sake.
It’s a very low-level textural component designed to give the contribution micro-movement and density, especially when the signal is otherwise very clean or static.
Think of it as a subtle binding agent.
It helps the reinforced structure feel more physical, more continuous, less clinical.
You usually don’t “hear” Grain as a sound.
You feel it as cohesion, especially on sustained material, pads, vocals, or full mixes.
If you bypass it, the sound doesn’t collapse.
It just feels slightly less alive.
That’s the right amount.
A tilt EQ shifts the spectrum by boosting highs while cutting lows, or vice versa. It’s a static slope.
Focus doesn’t work that way.
Focus redistributes where attention goes, not how loud parts of the spectrum are.
When you turn Focus, you’re changing how energy is weighted between the lower and upper pressure points of the fixed filter bank. You’re not boosting one side and cutting the other, you’re shifting emphasis.
That’s why Focus doesn’t feel like “brighter” or “darker” in the usual sense.
It feels more like the sound steps forward or settles back.
It’s a perceptual control, not a tonal one.
Specification
Supported Plugin Formats
AU, VST3, AAX (Apple Silicon ready).
Supported Operating Systems
macOS 10.14+
Windows 7+
Mac
Apple RISC M chip and Intel CPU (Universal 2 Binary)
PC
x64-compatible CPU
System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM
Copy Protection
A one-time challenge & response over the internet. License works on up two separate machines.
Downloads
For previously authorized computers
Customer reviews
27 reviews for P915 MEDUSA
Sorry, no reviews match your current selections

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.
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!
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.
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.
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。