Professional Audio Blog

Ideas, Interviews, Inspiration

October 2026

Bill Putnam Built the Room You Still Mix In

Chicago, 1946. A man decided the studios were the problem, not the players, and invented most of what a control room still is.

Dipl.-Ing. André Kirchner 08 Oct 2026 • 7Min read

Sidechain Without the Pump: What the External Input on the SC-5 Is Really For

The key input is not for ducking bass under a kick. Four things it does better, including a de-esser built from the compressor already on the vocal.

Dipl.-Ing. André Kirchner 04 Oct 2026 • 7Min read

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