Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD vs Fender MTG LA Tube Distortion
The Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD and the Fender MTG LA Tube Distortion are both pedals sharing compressed, saturated, mid-forward. The Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD leans high gain and warm. The Fender MTG LA Tube Distortion leans harmonically rich.
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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.44% — somewhat different
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Genres both listings are associated with.- Classic Rock
- Alternative Rock
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Derived from overlapping tonal signals across both listings.- compressed
- saturated
- mid-forward
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$173.43via Reverb
The MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD, is a vintage-voiced overdrive from MXR by Jim Dunlop based on the 1978 MXR Distortion Plus circuit with additional Tone and Filter controls added to increase tonal flexibility. The 1978 vintage Distortion Plus is known for its warm, smooth clipping character and distinctive compressed saturation that works well into an already-driven tube amplifier. The M78 extends the original circuit with front-panel EQ control that was not available on the vintage unit, allowing players to shape the midrange and frequency balance without requiring external pedals. It bridges the original vintage MXR sound with modern usability.
The Fender MTG Tube Distortion is a distortion pedal from Fender featuring a genuine 12AX7 vacuum tube in the preamp stage, providing authentic tube saturation and harmonic complexity in a compact pedal format. The MTG delivers the warm, musical distortion character of tube preamp saturation driven by the actual 12AX7 tube, producing the harmonic richness and natural compression of tube amplifier drive without requiring a full amplifier. The tube circuit is accompanied by Gain, Level, Treble, Bass, and a Mid switch, and the MTG suits classic rock, hard rock, and blues applications where tube character is the priority.
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Genres this gear is documented as being used in.- Rock
- Blues Rock
- Hard Rock
- Blues
- high gain
- warm
- full
- harmonically rich