Ampeg F17-1 vs Demon FX Microtubes A7K Bass Preamp

The Ampeg F17-1 and the Demon FX Microtubes A7K Bass Preamp are both pedals sharing mid-forward. The Ampeg F17-1 leans warm. The Demon FX Microtubes A7K Bass Preamp leans aggressive.

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.

46% — somewhat different

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

The Ampeg F17-1 is the model designation for the Ampeg Classic Analog Bass Preamp pedal, an all-analog circuit delivering SVT-derived preamp tone and 3-band EQ in bass pedal format. The preamp stage provides up to +18 dB of gain; EQ covers Bass at +7/-20 dB at 40 Hz, Mid at +5/-11 dB at 500 Hz, and Treble at +10/-10 dB at 4 kHz. Ultra-Hi and Ultra-Lo passive switches add classic Ampeg tonal character. Volume control, true bypass, internal -15 dB pad, 9V DC or battery operation. Built into a roadworthy all-metal chassis, offering an accessible path to genuine analog Ampeg bass tone in pedal form.

The Demon FX MICROTUBES A7K is a budget bass preamp and overdrive pedal from the Chinese effects manufacturer Demon FX, inspired by the Darkglass Microtubes bass preamp circuit architecture. Delivers aggressive transistor-clipped bass overdrive with bass-specific EQ shaping including parametric midrange control. Suited for metal, djent, and modern aggressive bass tones.

Genres
citedGenres this gear is documented as being used in.
—
  • Rock
  • Djent
Tonal lean
  • warm
  • aggressive
Good for
citedOccasions this gear suits — judged per model, or derived from its wattage, connectivity and category.
  • Live
  • Silent Recording
  • Studio
  • Busking
  • Silent Stage
  • Live
  • Silent Recording
  • Studio
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Ampeg F17-1 vs Demon FX Microtubes A7K Bass Preamp — Shared Character & Differences — NodeTone