Yamaha DX21 (SERVICED, in original box)

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Waunakee, WI, United States
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About This Listing

If not for the slight off-coloring on the keys, I would say this thing is in MINT physical condition. Operationally, it's in excellent condition, with only a bit of scratchiness on the A/B balance slider (leave it in the middle, and you'll never notice). I opened up and cleaned the volume and balance slide pots, but the scratchiness comes from worn track on the balance control. A brand new soldered-in memory battery has been installed to last the next 20+ years, and the factory presets have been restored. Everything has been thoroughly gone over, to ensure everything works as it should (except for the scratchiness on the balance knob, as noted).

Comes in the original box, which will be packed securely inside another box with extra padding on the inside and sides/ends. The total weight is up there a good bit, so this is why it will be expensive (UPS isn't particularly cheap for boxes this size & weight). More on shipping at the bottom...


Noted user Posthuman on the DX21 (video from Posthuman linked in pics):

"The DX21 is – in my opinion – a deeply underrated member of the DX series, with everyone clamouring for the DX7 and DX9 – but also the smaller-sized DX100: even though the DX21 is essentially two DX100’s put together. You can split the keyboard between two different sounds, a unique feature, and even split the sounds left and right outputs, which in my early days saved a tape bounce and gave so many more options for experimenting.

"I still have the DX21 today, and it still gets used regularly – mainly for stark, klonky noises or its amazing bass sounds – its the bouncy, rubber-band style bassline in our track Damascus but you can also get some softer, sine-wavey pads out of it too!"

From vintagesynthexplorer:

"A consumer level DX synth that sounds just like the  - thin and brittle. Following the DX model this synth also uses FM synthesis which is difficult to master. You will need to program this synth to get better sounds because the presets are only moderately useful. It's capable of a good string, bass and droney-pad sound as well as industrial sound-effects and metallic like sounds.

Still it makes a better option than a DX27 or DX100 because it has the capability of layers and splitting the keyboard and there is a chorus effect. Portamento and a Unison Mono-Mode are also nice features for screaming lead synth performances. For a cheaper source of DX sounds with moderate programmability, check out the DX21. It's been used by Hardfloor, Level 42, Brother Beyond, Astral Projection, Technotronic, Vangelis, and Norman Cook (Fat Boy Slim)."


Will be shipped promptly, within 24 hours of payment (weekend sales will be shipped on Monday). If you are in the Madison, WI area, free local pickup is available. In-person cash payment can be arranged to avoid the payment processing fees, but not the Reverb site fees (those will be reported and paid to Reverb). This unit can also be shown by appointment.

I stand by the items I restore & sell with Reverb's standard used/vintage gear return policy (within 7 days of delivery, buyer pays return shipping).

Product Specs

Listed9 days ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.learn more
Made In
  • Japan
Number of Keys

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