[Beta] SOL-7 Saturation EQ - draw saturation without crossovers (Mac/Win)

[SOL Studio]

Hi everyone,

SOL-7 Saturation EQ is now in beta.

SOL-7 is an additive Saturation EQ. It is not designed for subtractive EQ cuts.

It looks like an EQ, but it's a saturator: you use EQ-style nodes to place and shape harmonic colour across the spectrum. No crossovers, no band-splitting workflow — just saturation where you want it.



SOL-7 is not a preset-heavy plugin where you browse through hundreds of sounds.

It is designed as a hands-on saturation tool: place nodes, shape the harmonic colour, and build your own tone.

Main features:

• EQ-style node workflow for saturation
• Additive saturation only — no subtractive EQ cuts
• No crossovers
• Per-node control for frequency, Q, drive, sat gain, texture, transient, shape, slew, trans and mix
• M/S support
• Auto Gain
• Oversampling up to 4x for the saturation path
• Spectrum display with optional rainbow mode
• A/B, undo/redo and resizable UI

I made a short demo video showing a few starting points:

Open Master
Velvet Master
Drum Bus
Piano Presence

The video is about 3 minutes long, but the first section should already give a good idea of what SOL-7 does.

Demo video:


Windows VST3 and Mac AU/VST3 builds are available.

If you are interested in testing SOL-7, please reply here or send me a PM.

Any feedback about sound, workflow, UI or compatibility would be very helpful.

Thanks,
Yasushi
SOL Studio Audioo

[SOL Studio]

Small clarification: MIX is a global dry/wet control, not a per-node parameter.

[sinkmusic]

Nice!

[SOL Studio]

Nice!

Thank you!

[pekbro]

Hit me up Yasushi, looks really interesting.

[SOL Studio]

Hit me up Yasushi, looks really interesting.

Thanks!

The early feedback from Japanese testers has been very positive so far, and some interesting ideas have already come up during testing, so SOL-7 is becoming even more fun than I expected.

I’d be happy to send you a build if you’d like to try it.

[sinkmusic]

Hi, SOL
I'd be interested, too

[SOL Studio]

Hi, SOL
I'd be interested, too

Sure, I’ll send you the build by PM.

[billinder33]

Very interesting, a more detailed Spectre perhaps.

What's the difference between Transient and Trans?

[SOL Studio]

Very interesting, a more detailed Spectre perhaps.

What's the difference between Transient and Trans?

Yes, that’s a good question.

Transient and Trans are different controls.

Transient controls how much of the transient detail is allowed to pass through the saturation process. Higher values keep the attack and initial impact more intact.

Trans is short for transformer. It adds a transformer-style non-linear feedback / density component. It is more about weight, thickness and internal movement than transient shaping.

So in simple terms:

Transient = how much attack is preserved
Trans = transformer-style density / colour