EQ45 from Eventide is a four-band parametric equalizer built on a circuit model of the analog Urei 545 EQ, with high-cut and low-cut filters added.
EQ45 at a glance
| Developer | Eventide |
|---|---|
| Type | Effects / EQ |
| Formats | VST3, VST2, AU, AAX |
| Operating systems | Windows 10 or later, macOS 10.14 or later |
| Apple Silicon | Native |
| Architecture | 64-bit |
| Copy protection | iLok |
| Hosts named by the developer | Ableton Live, Logic Pro, Pro Tools, Cubase, FL Studio, Studio One |
| Price on Plugin Boutique (October 2026) | €48.59 |
What EQ45 does
The plugin reproduces the Urei 545 parametric EQ, a unit the developer describes as the go-to EQ for generations of engineers because of its tone color. Four bands each offer gain and width controls, and the high-cut and low-cut sections use 24 dB/octave Butterworth filter slopes. An EQ In/Out toggle lets the high-cut and low-cut filters be used alone, and an overload protection stage responds when a transient rises above -0.1 dB. Instrument-specific presets are included to help carve tone on mix tracks.
Key features
- Urei 545 circuit model. The EQ is based on a circuit model of the analog Urei 545 parametric EQ, with the high and low cut filters added alongside it.
- Four-band parametric section. Four bands each provide gain and width controls, giving detailed shaping across the spectrum.
- 24 dB/octave filters. The high-cut and low-cut sections use Butterworth filter sections with a slope of 24 dB/octave.
- EQ In/Out toggle. The EQ section can be switched out so that only the high-cut and low-cut filters remain active.
- Overload protection. The overload protection responds when a signal transient extends above -0.1 dB.
EQ45 compared with similar plugins
F6 Floating-Band Dynamic EQ from Waves is a dynamic equalizer available as VST2, AU and AAX for Windows and macOS. Legacy EQ from Harrison Consoles is an equalizer available as VST3, VST2, AU and AAX for Windows, macOS and Linux.
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| EQ45 | Eventide | EQ | VST3, VST2, AU, AAX | Windows, macOS | €48.59 |
| F6 Floating-Band Dynamic EQ | Waves | EQ | VST2, AU, AAX | Windows, macOS | €53.55 (regular €165.41) |
| Legacy EQ | Harrison Consoles | EQ | VST3, VST2, AU, AAX | Windows, macOS, Linux | €18.84 (regular €52.56) |
Price and availability
EQ45 was listed on Plugin Boutique in October 2026 at €48.59. Prices change often, so the store page shows the current one.
EQ45 FAQ
Does EQ45 run on Apple Silicon Macs?
Yes. The developer lists native support for Apple Silicon, and the plugin requires macOS 10.14 or higher.
Is there a working serial key or keygen for EQ45?
Serial keys and keygen files are commonly searched alongside the plugin name, but the plugin itself uses iLok activation.