Unlike the basic width knob, Stereoize II adds width by splitting the signal into frequency bands. It applies widening primarily to mid and high frequencies while keeping bass in mono — a classic mastering technique. You can control the crossover point and the amount of “stereoization” independently.
| Feature | Ozone Imager 2 (Free) | Wider (Free) | Polyverse Wider (Free) | Brainworx bx_solo (Free) | | :--- | :--- | :--- | :--- | :--- | | Algorithm | Stereoize (Harmonic) | Simple M/S | Psychedelic (Phase-based) | M/S soloing only | | Mono Compatibility | Excellent | Good | Excellent (no phase issues) | N/A | | Visual Feedback | Vectorscope & Meter | None | None | Goniometer | | Best Use Case | Mastering / Mix Bus | Individual synth layers | Pads / FX / Vocals | Checking mixes | ozone imager 2
Pros:
Cons:
Hidden behind the "iZotope" logo is a toggleable mode called Stereoize II. This is not a simple M/S widener; it’s a psychoacoustic processor that generates uncorrelated stereo information from a mono source. Unlike the basic width knob, Stereoize II adds
When to use it: It excels on mono synth leads, basslines, or vocal doubles. It creates a lush, wide effect that can sound more "organic" than the standard widening slider. However, it is very aggressive on the correlation meter—use it sparingly and always check mono. Cons: Hidden behind the "iZotope" logo is a
One of the most underrated aspects of Ozone Imager 2 is its built-in diagnostics.