November 2026 Issue
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The Ice Man

By Riverhorse · Vol. 28, No. 1 · November 2026

Molecular biologist Sebastian Gruenburg brings scientific knowledge and extensive experience with vintage instruments to the development of Vintage Inspired Pickups. His work includes studying original PAF humbuckers, experimenting with cryogenically treated magnets and examining how winding and magnetic fields influence pickup response. Equally revealing is his research into vintage Centralab potentiometers and the development of custom controls designed around their distinctive taper. His approach offers a detailed understanding of the relationship between pickup construction, guitar electronics and the dynamics and tonal response that players associate with exceptional vintage instruments.

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The Ice Man — The ToneQuest Report®