Airis Effects SPEC-Defier vs Benson Amps Portable Distortion 424 MKII
The Airis Effects SPEC-Defier and the Benson Amps Portable Distortion 424 MKII are both pedals sharing compressed, saturated, full. The Airis Effects SPEC-Defier leans high gain and crunchy. The Benson Amps Portable Distortion 424 MKII leans edge of breakup and harmonically rich. Current prices: $169 vs $199.
cited
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.36% — somewhat different
cited
Derived from overlapping tonal signals across both listings.- compressed
- saturated
- full
cited
Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$169via Reverb
$199via Reverb
Airis Effects designed the SPEC-Defier as a follow-up to their well-received 51-Filthy preamp, aiming this time for a thicker, more Mesa Boogie Rectifier-style voicing rather than the tighter, more articulate character of its predecessor. Built by Ontario-based Richard Seidlitz, who founded Airis in 2014 with a focus on high-gain boutique pedals, the SPEC-Defier trades some of the Filthy's precision for a heavier, more saturated crunch and chug, giving players two distinct high-gain flavors within Airis's small but focused catalog rather than a single one-size-fits-all metal preamp.
The Benson Amps 424 MKII is a preamp and distortion pedal designed to recreate the saturation and harmonic character of the input stage of the Tascam Portastudio 424 MkII cassette four-track recorder. The circuit captures the non-linear behavior of cassette-era input electronics, spanning from subtle coloration and clean boost through compressed broadband distortion and unstable breakup. A switchable front-end buffer fundamentally alters the gain structure: engaged, it presents a high-impedance guitar input with tighter low end and increased headroom; bypassed, the circuit returns to a darker, fuzzier low-impedance cassette response. Four controls -- gain, trim, bass, treble -- cover a wide EQ range. Internal 18V operation provides increased headroom. Made by Benson Amps in Portland, Oregon.
cited
Genres this gear is documented as being used in.- Metal
- Hard Rock
- Electronic
- Experimental
- Indie
- Indie Rock
- high gain
- crunchy
- edge of breakup
- harmonically rich
- bright
- fuzzy
- transparent