Donner Harmonic Square Octave/Pitch Shifter vs EarthQuaker Devices Tentacle
The Donner Harmonic Square Octave/Pitch Shifter and the EarthQuaker Devices Tentacle are both pedals. The EarthQuaker Devices Tentacle leans octave.
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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.56% — moderately similar
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Genres both listings are associated with.- Experimental
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$54.49via Reverb
The Donner Harmonic Square is an octave and pitch shifter pedal from the Chinese budget effects manufacturer Donner, delivering octave-up, octave-down, and pitch shifting effects for guitar. Provides classic sub-octave and upper octave effects along with pitch shifting capability at an accessible Donner budget price. Controls adjust the blend of octave and dry signal with pitch shift interval.
The EarthQuaker Devices Tentacle is a simple analog octave-up guitar pedal from Akron, Ohio boutique manufacturer EarthQuaker Devices, generating a single upper octave harmonic above the fundamental guitar pitch through an analog rectifier circuit. The Tentacle has only a single Level control, making it the simplest pedal in the EQD lineup. Produces the upper octave fuzz-octave character associated with Roger Mayer Octavia-style circuits. True bypass.
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Genres this gear is documented as being used in.- Alternative Rock
- octave