Synths ⇝ Yamaha ⇝ Yamaha DX21

The DX21 is a 4-operator FM synthesizer and one of the most limited of the DX line due to the keyboard's lack of both velocity and aftertouch sensitivity. It has 8 different algorithms available, similar to the other 4-operator Yamaha FM synths, and is patch-compatible with some of the other 4-operator devices, such as the DX27, DX100, and TX81Z.

Specifications

Year Released: 1985

MSRP: 895.00 USD

Keyboard: 61 keys

Polyphony: 8 notes

Preset Patches: 128

User Patches: 32

User Performances: 32

Screen: 16x2 character LCD

Power Consumption: 7 watts

Dimensions: 909 mm x 82 mm x 270 mm

Weight: 8 kg

User Demo Videos

Rating

File Downloads

Yamaha DX21 Manual

Yamaha DX21 Performance Notes

Items for Sale on Reverb

Yamaha DX21 | Vintage 4-Operator FM Synth | Beautiful Blue LCD Upgrade | Fully Working | Japan 100V ($415)

Yamaha DX21 Digital FM Synthesizer ($506.54)

Yamaha DX21 ($380)

Yamaha DX21 Programmable Algorithm Synthesizer 1985 - Black ($333)

Yamaha DX21 Programmable Algorithm Synthesizer ($250)

Yamaha DX21 Programmable Algorithm Synthesizer 1985 - Black ($345)

Yamaha DX21 Programmable Algorithm Synthesizer 1985 - “time capsule” ($699)

YAMAHA DX21 w/ Original Box & Manuals ($356.36)

Yamaha DX21 synthesizer brochure ($53.15)

Yamaha DX21 4-Op FM Synthesizer Keyboard DX100 Sound ($161)

Yamaha DX21 Programmable FM Algorithm Synthesizer 1985 - Perfect - Manuals and Hardcase ($282.27)

Yamaha DX21 Playbook Tape ($46.06)

Yamaha DX21 Programmable Algorithm Synthesizer 1985 - Black ($556.66)

YAMAHA DX21 PROGRAMMABLE ALGORITHM SYNTHESIZER (VINTAGE) ($299.99)

Yamaha DX-21 Original US Power Supply Assembly. Works Great ! ($49)

OLED Display Upgrade - Yamaha TX7 - DX7 - DX9 - DX11 - DX21 - FB-01 ($104.37)

Yamaha DX21 Keyboard Synthesizer w/Case ($474.92)

Yamaha DX21 W/ Original Bag 100V Made in Japan MIJ ($295)

Yamaha DX21 V1.5 OS EPROM! NEW! ($18.99)

YAMAHA DX9 DX21 DX27 Original Top-C Key. ($14.99)

1980s Yamaha DX-21 FM Keyboard Synthesizer ($357.02)

NEW Yamaha Replacement Volume Slider for DX7, DX9, DX11, DX21, DX27, DX100 ($17.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement C/F Key (CB032210) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement G Key (CB032240) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement A Key (CB032250) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement TOP C Key (CB032260) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($18.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement G Key (CB032240) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement G Key (CB032240) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement G Key (CB032240) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement D Key (CB032220) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement TOP C Key (CB032260) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($18.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement G Key (CB032240) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement A Key (CB032250) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement A Key (CB032250) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement A Key (CB032250) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement G Key (CB032240) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($10.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)

ORIGINAL Yamaha Replacement Black Key (CB032270) for CS70M, CS5, CS15, CS15D, CS20, CS20M, CS40M, DX9, DX21, DX27, DX27S, SK20, SK30, CP10, CP11, CE20, PS10, PS20, YK10, and more ($7.95)