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DX7IID & DX7IIFD - Image 1

DX7IID & DX7IIFD

KeyboardDigitalPolyphonic

Back in 1987, this synth took the revolutionary FM sound of the original DX7 and gave it real-world upgrades that players had been dreaming about, like actual buttons you can feel instead of flimsy membranes.

It packs 6-operator FM synthesis with 16-voice polyphony across a velocity-sensitive 61-key keyboard with aftertouch, now enhanced by bi-timbral split and layer modes for richer, two-part performances. The sturdy chassis measures about 39 inches wide by 13 inches deep and weighs around 23 pounds, with larger real-time sliders for hands-on control of parameters, dual LED displays, and improved 16-bit digital circuitry for cleaner audio via stereo outputs. Memory jumps to 64 internal voices and 32 performances (128/64 with external storage), plus better MIDI implementation, micro-tuning, and multiple LFOs.

Players love how it builds on the glassy, crystalline tones that defined '80s pop and beyond, with the FD model's floppy drive making patch management a breeze even today. That said, some note the learning curve for deep editing remains steep, true to its FM roots.

Released

1987

Status

Discontinued

Synthesizer
Format
Keyboard
Type
FM
Internal Battery
No
Voice
A/D
Digital
Polyphony
Polyphonic
Oscillators
6
Oscillator Type
FM Operators
Voices
16
Filter
No
Envelopes
6
LFO
-
Effects
No
Expression
Aftertouch
Polyphonic
Velocity
Yes
MPE
No
Additional
-
Software
-
I/O
Audio In
-
Audio Out
2 stereo
Headphone
-
MIDI
In, Out, Thru
MIDI Type
DIN (5-pin)
Ports
Floppy Drive
Wi-Fi
No
Workflow
Arpeggiator
-
Sequencer
-
Mod Matrix
-
Memory
Internal: 64 voices/32 performances, external: 128 voices/64 performances
Measurements
Dimensions
999 x 333.7 x 85.8 mm
Weight
10.5 kg
Last updated Mar 25, 2026