What the spring reverb is for

A 1970s organ reverb tank, why it hums, and why that hum became the key of an album.

■ Entry

Written by Ida Nachtfeld in Leipzig. Photographs from the archive.

The tank

The reverb came out of a church organ that was being scrapped in Halle. It is a metal box with three springs inside, and it picks up everything: footsteps, trams, the kick drum through the table.

On stage it sits on the floor next to the table, so the room itself shakes the springs. No two nights sound the same because no two floors are the same.

From the entry

It is less an effect than a room you carry around.

■ Keep reading

02 Sep 2026Studio
Why every show gets recorded to tape
18 Aug 2026Rig
Building the rig for the album tour
04 Jul 2026Album
Four nights in the depot

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