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Gently undulating modulation and hard-choppin' tremolo come together in a harmonic trem with copious control options.

Lush, complex harmonic tremolo. Easy to shape extreme modulations into serviceable textures. Well-integrated gain control generates cool dirt tones and compression. Well built.

Controls can feel overly sensitive.


JAM Pedals Harmonious Monk


Harmonic tremolo deserves its own effect category—perhaps one without "tremolo" in the name at all. Harmonic tremolo (which modulates bass and treble frequencies separately before recombining them to very wobbly ends) and amplitude tremolo, (which attenuates volume at various rates) sound like siblings in many settings. At low effect levels, casual listeners might have trouble discerning a difference.

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