KVR
Developer
Challenge
2026

Ouranos7 by John Crosby Acoustics is a Virtual Instrument Audio Plugin and a Software Application for macOS, Windows and Linux. It functions as an Audio Units Plugin, a VST 3 Plugin, an AAX Plugin, a CLAP Plugin and a Standalone Application.

Product
Version

1.0.0

Product
Version

1.0.0

Product
Version

1.0.0

Tags:Synth (Cosmic)John Crosby Acoustics KVR Developer Challenge KVRDC KVRDC2026 KVRDC26 Ouranos7 Universal 2 Binary

Instrument
Formats

Copy Protection

None

Important Note

Fresh compilation, there might be some untested functions (on Windows mostly). Please report any "not expected" behavior.

MyKVR: Groups, Versions, ...

17 KVR members have added Ouranos7 to 14 MyKVR groups 22 times.

Download KVR Studio Manager (FREE)

Not In Your MY KVR Groups
(or group limitation prevents versioning)

+14 in private groups

KVR Rank

Overall: 744 649 730 139

30-Day: 78; 7-Day: 73; Yesterday: 86

Not another DX7 clone — a revenge, a tribute, and a love letter, all in one. Ouranos7-Friends is a free 6-operator FM synth with true stereo oscillators, a 7×6 FM and AM matrix (the stereo output is the seventh modulation source — infinite algorithms), 25 tuning tables switchable on the fly, and 7 Bézier-curve ADSRs. Built by someone who's been inside the DX7's submenus since 1984.

Knob Twiddlers: the Gentleman's Edition editor is coming. Ouranos7-Friends is for Preset Waders — just load and play.

"The DX7 stole 40 years of my life. This is what I got back."

Latest User Reviews

Average user rating of 0.00 from 0 reviews

Read all reviews Add A Review

Comments & Discussion for John Crosby Acoustics Ouranos7

Discussion: Active

Please log in to join the discussion