Yamaha DX27

Digital programmable algorithm synthesizer

Yamaha DX27 FM synthesizer
Buy one (20 on sale)

1985 (Dec.)
Initially sold for ¥91,000

The DX27 was the most affordable programmable synthesizer with full size keyboard of the FM line of the 80s. Coming at 499£ it attacked the price range of the low-end Casio keyboards, delivering the same 4op FM synthesis of the mid tier models.

It uses the same shell of the DX21, making it yet another example of the Yamaha's tendency to release models in couples by reusing much of the hardware (see DX7 and DX9 or RX5 and RX7).

Just like the DX21, the new green plastic buttons are a welcome improvement over the membrane controls of the first DX lineup. Less futuristic for sure, but much more durable and easy to repair.


  • 24-voice internal RAM memory.
  • 192 voices programmed into internal ROM.
  • Bank Play mode permits direct access to 96 voices, programmable in any order.
  • Shift mode permits access to another 96 voices.
  • Built-in cassette interface for voice data storage.
  • The DX27 keyboard itself does not have key velocity, but its tone generators accept key velocity data from an external MIDI keyboard or sequencer.
  • Sustain/portamento footswitch and breath controller inputs.
  • MIDI IN, OUT and THRU terminals.
Yamaha DX27 brochure
Yamaha DX27 brochure

Buy a used
Yamaha DX27

Yamaha DX27 DX 27 DX-27 Synthesizer Keyboard WORKS includes OEM AC plug

Buy used Yamaha DX27 DX 27 DX-27 Synthesizer Keyboard WORKS includes OEM AC plug
Open Ebay

Yamaha DX-27s 1986 - Black

Buy used Yamaha DX-27s 1986 - Black
Open Reverb

Yamaha DX 27 Synthesizer Keyboard

Buy used Yamaha DX 27 Synthesizer Keyboard
Open Ebay

If you're looking to buy a used Yamaha DX27,
check out these listings pulled daily from Ebay and Reverb.

See more (20 on sale)
Links to Ebay and Reverb are affiliate links: which means I receive a small percentage of the revenue made from purchasing products through these links. This really helps to maintain the website.