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FabFilter Pro-Q 4

FabFilterproPro Choicecritical fields covered· 3/3 detail specs sourced
FabFilter Pro-Q 4

Pro-Q 4 is FabFilter's flagship mixing EQ, a pro-tier plugin widely treated as a studio standard. Available in VST3, AU, and AAX for Windows and macOS, it's built for engineers who want a precise, do-everything EQ as a core workflow tool. Beginners leaning on bundled stock plugins may not yet need it, but for serious mixing it's a natural first paid EQ.

Scores

Breakdown
Overall80±3

Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.

Beginner Friendliness54
Compatibility84
Confidence76
Pro Readiness82
Upgrade Path87
Value92

The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.

How each score is computed: our scoring methodology.

Specifications

SpecValueVerification
plugin formatsVST3, au, AAXSourced
plugin typeeqSourced
os supportwindows, macosSourced

3/3 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.

Verdict

Best for

  • The mixing EQ standard

Who should skip this

  • Stock-plugin-first beginners

Where to buy

List price $199

Prices are a guide and can change — confirm the current price on the retailer's site before buying.

Prices last checked Jun 13, 2026 — retailer prices change often, so click through for the current price.

Some links may be affiliate links — we may earn a commission at no extra cost to you; rankings are never influenced by it.

Platform support

WindowsfullmacOSfull

Standards

Form factors & standards — interchangeable across compatible builds, not a platform lock-in.

AAX (native)Audio Units (AU) (native)VST3 (native)

Compatibility

Built around AAX, Audio Units (AU), VST3. Make sure the rest of your build uses the same platform before you buy — mismatched sockets, mounts or standards are the most common return reason. Check it in the builder →

Upgrade path

A top-tier plugin — there's little to upgrade to within the category.