Alternatives to the Source Audio Spectrum

Dr. Scientist Dusk

Shared character: one octave, filter, ambient

Animals Pedal Double Spy Mission is Imp Filter

Shared character: mono synth, one octave, filter

Electro-Harmonix Blurst

Shared character: mono synth, filter, ambient

Ibanez PT EQ

Shared character: filter, bass, studio

Carl Martin Ottawa

Shared character: mono synth, tight tracking, filter

Electro-Harmonix Micro Q-Tron Envelope Filter

similar tone character

Electro-Harmonix Riddle Q Balls

similar tone character

Carl Martin Ottawa Vintage Optical Envelope Auto-Wah/Envelope Filter

similar tone character

Maestro Agena

similar tone character

GFI System Enieqma Equalizer

Shared character: studio

Pigtronix Resotron Analog Tracking Filter

Shared character: phaser, mono synth, tight tracking

Meris Ottobit X

Shared character: mono synth, tight tracking, filter

Free The Tone PA-1QA Programmable 10 Band EQ

Shared character: studio

Maxon AF-9 Auto Filter

Shared character: filter, pick attack, bass

Subdecay Proteus MKII Sample

Shared character: mono synth, filter, pick attack

DigiTech DSP 256XL

Shared character: studio, full

Emma DiscomBOBulator

Shared character: mono synth, tight tracking, filter

Behringer BM-15M Murf Box

similar tone character