Tone City TC-T37 Mad Stone Classic Germanium Diode vs Tru-Fi The Newton
The Tone City TC-T37 Mad Stone Classic Germanium Diode and the Tru-Fi The Newton are both pedals sharing silicon, bright. The Tone City TC-T37 Mad Stone Classic Germanium Diode leans aggressive and tight. The Tru-Fi The Newton leans transparent and clean boost. Current prices: $79.80 vs $199.95.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.38% — somewhat different
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Genres both listings are associated with.- alternative
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Derived from overlapping tonal signals across both listings.- silicon
- bright
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$79.80via Reverb
$199.95via Reverb
The Tone City Mad Stone is a budget distortion pedal built around germanium diode clipping. Germanium diodes clip at a lower threshold than silicon, so the voicing is softer, warmer and more compressed than a typical silicon distortion, with a rounded top end and a smooth, vintage-flavoured breakup rather than a sharp, cutting edge. It sits in a compact mini enclosure at an accessible price and is aimed at players wanting classic, warm distortion character without a boutique outlay.
The Tru-Fi Newton is a Klon Centaur-inspired overdrive and clean boost pedal offered in a compact modern enclosure. Its top-panel Centaur/Brown mode switch selects between a stock Centaur-style voicing and a Brown mode with roughly 20 percent more gain on tap. Internal DIP switches let players further tailor the circuit: one pair selects between stock treble response or a fuller, bassier voicing, while a second set chooses among the original 1N34A germanium diode clipping, no diode at all for a cleaner boost, or asymmetrical silicon diodes for a different breakup character. This flexibility lets the Newton function as either a transparent clean boost or a low-to-medium gain overdrive with the mid-forward push associated with Centaur-style circuits, without needing a different pedal for each variant.
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Genres this gear is documented as being used in.- hard rock
- metal
- indie rock
- blues
- aggressive
- tight
- transparent
- clean boost
- dynamic
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Occasions this gear suits — judged per model, or derived from its wattage, connectivity and category.- Busking
- Live