Plugin comparison
Specs, price and the Dubspot Score, side by side — with our verdict on which effect to buy.
Independent score / workflow fit / buying signal
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Contenders
Tonal Balance Control 2 is a metering plugin from iZotope. Score 8.3/10, price $99, formats and comparisons.
Voxengo SPAN is a free real-time FFT spectrum analyzer plugin with multi-channel modes, correlation metering, and EBU R128 / K-system level tools.
Score verdict
On the Dubspot Score, Voxengo SPAN comes out ahead (8.8). That said, the right pick depends on your workflow and budget — read both reviews before deciding.
Technical matrix
| Signal | Tonal Balance Control 2 | Voxengo SPAN |
|---|---|---|
| Price | $99 | Free |
| Dubspot Score | 8.3 | 8.8 |
| Formats | VST3, AU, AAX | VST3, VST, AU, AAX |
| Product type | effect from iZotope | — |
| Developer | iZotope | — |
| Typical price | $99 | — |
| Formats | VST3, AU, AAX | VST, VST3, AU, AAX (64-bit) |
| Primary job | focused effect work in modern sessions | — |
| Catalog status | Current as of 2026 | — |
| Type | — | FFT spectrum analyzer / metering utility |
| Price | — | Free |
| Platforms | — | Windows and macOS |
| Metering | — | EBU R128, K-system, RMS, true peak, correlation |
| Manual | — | Official SPAN user guide PDF on Voxengo site |
See the full plugin database for more comparisons.