Alternatives to the Meris Enzo X

Boss OC-5

Shared character: mono, tight tracking, one octave

Boss OC-3 Super Octave

Shared character: input signal, mono synth, tight tracking

EarthQuaker Devices Bit Commander Analog Octave Synth

Shared character: mono synth, tight tracking, one octave

Boss PS-6

Shared character: mono, tight tracking, one octave

Mooer Twin Tender Octaver Pro

Shared character: fat, tight tracking, one octave

Subdecay Octasynth Octave Synthesizer

Shared character: mono synth, tight tracking, one octave

Electro-Harmonix V256 Vocoder

Shared character: full

Boss OC-2 Octaver

Shared character: vintage charm, mono synth, tight tracking

Death By Audio Octave Clang v2

Shared character: aggressive playing, mono synth, tight tracking

Pigtronix MS2 Mothership 2 Analog Synthesizer

Shared character: mono synth, tight tracking, analog

EarthQuaker Devices Tentacle V2

Shared character: tight tracking, one octave, analog

DigiTech Whammy Pitch-Shifting Pedal

Shared character: tight tracking, one octave, hard rock

Mu-Tron Octave Divider

Shared character: mono synth, fat, tight tracking

Subdecay M3 Monophonic

Shared character: mono synth, fat, tight tracking

Chase Bliss Onward

Shared character: input signal, drawback, mono synth

TC Electronic Mimiq Mini Doubler

Shared character: mono, tight tracking, stereo

Red Panda Tensor

Shared character: instrument, drawback, mono

Red Witch Synthotron V1

Shared character: mono synth, fat, one octave

Tycobrahe Octavia

Shared character: tight tracking, one octave, aggressive playing

Death By Audio Robot

Shared character: hard rock, mono synth, one octave

DigiTech Drop

Shared character: tight tracking, one octave, bass

EVH Pitch Fork

Shared character: tight tracking, one octave, ambient

JHS Double Dragon

Shared character: tight tracking, one octave, thickness

smallsound/bigsound Buzzz

Shared character: drawback, one octave, gain