Skip to content

Catalogue data

Maker	MXR
Type	phaser
Introduced	1974
Status	current
Catalogue no.	646

On this page

Indexes

Specimen 646

MXR Phase 90

MXR Phase 90 — photograph by Roadside Guitars — Roadside Guitars — CC BY-SA 2.0 — via Wikimedia CommonsReport this image

Note

One knob, eternal (Eddie Van Halen, David Gilmour).

Collected notes

seed · 2025-01-01

Consensus: THE phaser — the block-logo originals and handwired reissues are the ones to have.

Related models — same maker — MXR

637MXR 10-Band EQ (M108S)MXR
638MXR Blue BoxMXR · 1976
639MXR Carbon CopyMXR · 2009
640MXR Distortion+ (Dunlop)MXR · 1973
641MXR Dyna CompMXR · 1976
642MXR EVH Modern High GainMXR · 2026
643MXR M117R FlangerMXR · 1977
644MXR M234 Analog ChorusMXR

Same era — 1970s

010BichB.C. Rich · 1970
011EagleB.C. Rich · 1970
012MockingbirdB.C. Rich · 1976
029HD-28C.F. Martin & Co. · 1976
065MLDean Guitars · 1977
067VDean Guitars · 1977

Same body shape / configuration — phaser

599Electro-Harmonix Small StoneElectro-Harmonix · 1974
645MXR Phase 100MXR · 1976

See also