PG25
The Porter Grinder EQ

The PG25
Experience precision and musicality with the PG25 — a four-band stereo EQ featuring bell and shelving modes on the high and low bands, MS, per-band bypass and global bypass.
Designed as a classic mastering EQ, the PG25 includes an MS mode known for adding a touch of analog “magic.” Every control is precisely matched for perfect left/right tracking, ensuring true stereo integrity (relative values, not absolute).
At first listen, the PG25 may seem almost too transparent — but give it time. Its parallel filter bus imparts a subtle, unmistakable character. This EQ works with you, not against you, making it effortless to shape tone without the usual fight or artifacts. Its intuitive, natural response might even feel “invisible” at first, until you realize how seamlessly it integrates into your workflow.
Trusted by mastering engineers worldwide — and even found in select high-end hi-fi systems — the PG25 delivers clarity, depth, and musical cohesion that reveals itself with every subtle tweak.
Do a few adjustments, toggle bypass for comparison, and you’ll hear its personality shine through.
Each unit is hand-built to order, with a typical lead time of 4–6 weeks.
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All controls are stepped, and I am happy to do custom variations for colours and lights.
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€3390 ex VAT
Example of the PG in use (2023 version, same circuit and sound)