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envelope filter

Electro-Harmonix Q-Tron+ (envelope filter)

The Mu-Tron descendant for funk.

Related models — same maker — Electro-Harmonix

Electro-Harmonix Deluxe Memory ManElectro-Harmonix · 1976
Electro-Harmonix Big Muff Pi 2 (with JHS)Electro-Harmonix · 2025
Electro-Harmonix Big Muff PiElectro-Harmonix · 1969
Electro-Harmonix Op-Amp Big Muff reissueElectro-Harmonix · 2017
Pico Atomic ClusterElectro-Harmonix · 2025
Electro-Harmonix Electric MistressElectro-Harmonix · 1975
Electro-Harmonix Small StoneElectro-Harmonix · 1974
Electro-Harmonix Pitch Fork+Electro-Harmonix

Same era — 1990s

EcstasyBogner Amplification · 1991
ShivaBogner Amplification · 1999
VH4Diezel Amplification · 1997
Boss MT-2 Metal ZoneBoss · 1991
ZVex Fuzz FactoryZVex · 1997
Carmen GhiaDr. Z Amplification · 1999

Same body shape / configuration — envelope filter

Boss AW-3 Dynamic WahBoss
Mu-Tron IIIMusitronics · 1972

See also

Makers — all makers, indexed