Keeley Super AT Mod Overdrive Limited Edition vs Mission Engineering NuAudio Nutube Velocity Overdrive/Distortion

The Keeley Super AT Mod Overdrive Limited Edition and the Mission Engineering NuAudio Nutube Velocity Overdrive/Distortion are both pedals sharing harmonically rich, transparent. The Keeley Super AT Mod Overdrive Limited Edition leans dynamic. The Mission Engineering NuAudio Nutube Velocity Overdrive/Distortion leans warm. Current prices: $259.74 vs $279.

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 tone character
citedDerived from overlapping tonal signals across both listings.
  • harmonically rich
  • transparent
Citation fame
citedCitation/mention fame — how often this gear is cited across artist rigs and gear discussion.
0%
0%
Price

$259.74via Reverb

$279via Reverb

Description

The Keeley Super AT Mod Overdrive is a limited-edition premium modification of a Tube Screamer-style overdrive circuit by Robert Keeley, incorporating signature AT (Andy Timmons) circuit modifications that extend the tonal range and improve harmonic character beyond the stock circuit. The AT modifications address specific Tube Screamer limitations including bass response and clipping character, producing a more natural, harmonically complex overdrive suited to expressive blues and rock lead playing.

The Mission Engineering NuAudio Velocity is a dual-gain overdrive and distortion built around the Korg Nutube, a vacuum fluorescent display redesigned to work as a genuine audio amplifying valve. That gives real tube harmonic content, natural compression and touch sensitivity in a pedal drawing far less power, lasting longer and staying much smaller than a conventional valve design, running from a standard 9V DC supply. A Lo/Hi gain switch sets the range: Lo is a subtle overdrive for pushing an amp's front end slightly harder, while Hi introduces genuine tube crunch building to a full saturated lead tone as the drive control opens. Three further knobs give bass, middle and treble EQ for a wide voicing range, and higher gain settings retain excellent pick responsiveness rather than compressing into mush.

Genres
citedGenres this gear is documented as being used in.
  • Blues
  • Rock
  • alternative
  • blues
  • indie rock
Tonal lean
  • dynamic
  • warm
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