Dunlop MXR GT-OD Overdrive vs Vertex Ultraphonix HRM

The Dunlop MXR GT-OD Overdrive and the Vertex Ultraphonix HRM are both pedals sharing saturated, dynamic, bright. The Dunlop MXR GT-OD Overdrive leans transparent and aggressive. The Vertex Ultraphonix HRM leans mid-forward. Current prices: $118.77 vs $111.16.

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.

48% — somewhat different

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

$118.77via Reverb

$111.16via Reverb

Description

The MXR GT-OD Overdrive is an overdrive pedal from MXR by Jim Dunlop designed to deliver transparent, touch-sensitive overdrive across a wide gain range with precise EQ control through a three-band active bass, middle, and treble EQ stack. The GT-OD is positioned as a versatile, studio-quality overdrive capable of subtle output enhancement through to aggressive pushed saturation. The three-band active EQ gives players frequency-specific shaping control rather than the single Tone knob found on most compact overdrive pedals, making it adaptable across multiple guitar and amplifier configurations. It suits blues, rock, and classic rock applications where dynamic feel and tonal flexibility are prioritized.

The Vertex Ultraphonix HRM is an analog overdrive pedal with a distinctly British amp-style voicing. The Gain control sets how hard the internal preamp stage is driven, shaping the amount of distortion produced, while Accent controls add tone presence and layer in additional saturation. It's built to respond closely to pick dynamics, accentuating the vocal, expressive qualities of a guitar-and-amp combination rather than delivering a single fixed gain texture. It sits within the broader Ultraphonix line as the HRM-specific voicing, distinct from the newer Ultraphonix MkII revision.

Genres
citedGenres this gear is documented as being used in.
  • Alternative Rock
  • Blues
—
Tonal lean
  • transparent
  • aggressive
  • mid-forward
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