Amptweaker Tight Metal vs Amptweaker Fat Rock

The Amptweaker Tight Metal and the Amptweaker Fat Rock are both pedals sharing full, mid-forward. The Amptweaker Tight Metal leans high gain and aggressive. The Amptweaker Fat Rock leans warm. Current prices: $189 vs $269.

Similarity
citedBlended 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.

35% — somewhat different

Shared genres
citedGenres both listings are associated with.
  • Rock
Shared tone character
citedDerived from overlapping tonal signals across both listings.
  • full
  • mid-forward
Citation fame
citedCitation/mention fame — how often this gear is cited across artist rigs and gear discussion.
0%
0%
Price

$189via Reverb

$269via Reverb

Description

The Amptweaker TightMetal is a compact high-gain metal distortion pedal designed by James Brown, the engineer behind boutique amp brands including Bogner. Built by adding additional gain stages to the front end of the TightDrive circuit, it produces thick and heavy distortion tuned by a built-in output EQ curve. A three-way tone stack and integrated noise gate allow for aggressive tone sculpting in a compact enclosure. It delivers heavier and thicker distortion than the TightRock, targeted at modern rock and metal playing.

The Amptweaker FatRock is a rock distortion pedal designed by James Brown as a warmer evolution of the TightRock, developed in response to player requests for a version better suited to brighter guitars and amplifiers. Compared to the TightRock, the FatRock extends the low range of the Tight and Tone controls, adds a fixed Fat boost at the front end for a slightly softer attack, and boosts the low-end in the output EQ. An EQ switch converts the tone stack to PlexEQ mode for classic vintage stack character. Three effects loops including the SideTrak loop active when the pedal is off allow complex routing.

Genres
citedGenres this gear is documented as being used in.
  • Metal
  • Classic Rock
  • Hard Rock
Tonal lean
  • high gain
  • aggressive
  • saturated
  • warm
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