Yamaha DX11

“This is a great 80s-style synthesizer, and has some great sounds from the era. In good condition. New internal battery fitted, and sound and performance banks reset to factory defaults. The new battery is fitted into a socket making is simple for future replacement.

There is a scratch on the front panel, just above the 10/11 buttons (see photo), and some of the text has worn off from buttons 19-24 (see photo).” Click here to visit listing on eBay

Yamaha DX11

“Up for sale is a pre-owned Yamaha DX11 61-Key FM Digital Keyboard Synthesizer. This item is in good condition, showing signs of some normal wear such as some scratches, mostly on the bottom casing from previous use. The bottom of one of the keys is chipped (see photo). The keyboard has been tested and works great. Purchase includes (1) Yamaha DX11 61-Key FM Digital Keyboard Synthesizer ONLY, as shown. No other items/accessories are included.Please carefully review photos of actual item for sale and ask any questions you may have prior to purchase.Note that every item we sell is discretely marked with security ink to protect both the buyer and the seller.”
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Yamaha DX11

“It has not been used for a good few years but still works. Successful buyer is more than welcome to fully try it out before accepting it, though I will not be able to answer any technical questions about this item as I have not used it for a long time, and I am no longer fully knowledgeable on use or its technical spec and full features. ” Click here to visit listing on eBay

Yamaha DX11

“A Yamaha DX 11 vintage synthesizer from 1987 in good working order and good cosmetic condition.

The synth has been modified with a coin cell battery holder for the internal battery, directly accessible when the base plate is removed (thereby saving the complete removal of the main processing board) and has just been fitted with a new high quality Duracell.

Please inspect the pictures to assess condition; two points to highlight: the Pitch Wheel has taken a knock causing some cosmetic damage, but still functions perfectly and does not rub against the top panel when in use. There is very slight staining on keys B3, C4, E4 (mainly) and F4, visible when light is reflected off them (see pic 7). B1 has a short scratch (see pic 8). Aftertouch is working on all keys; the synth is 8 note polyphonic. It does not come with a user manual but it’s freely available online.” Click here to visit listing on eBay

Yamaha DX11

“Yamaha DX11 Synthesizer. Condition is “Used”. New battery replaced last February. Keyboard was serviced and all circuits and connections were repaired. All keys are working and all preset sounds are working. Barely used gig bag will be included.” Click here to visit listing on eBay

Yamaha DX11

” Gifted to my grandfather in 1989 by the Yamaha cooperation of Japan, this keyboard is in excellent working condition but has sat idle for a number of years. My grandfather was a research film maker, and had made a request to Yamaha to fund his research into the changing frequency of cricket mating “noises”. Obviously not seeing many potential consumer use cases, Yamaha declined my Grandfathers request but gifted him with this (at the time) brand new DX11. It’s first live audience may well have been a fish tank full of horny crickets. ” Click here to search for synths on eBay

Yamaha DX11

“needs a little love. 1 key is broken off. and 1 other key has light chipping underneath. As pictured it says it needs it’s RAM battery changed…I have done that already and if you do a factory reset the original patch library comes up just fine…sometimes booting it off and on it loses those patches and goes into “sine” wave mode where it’s all just sine wave oscillators to play and back to a battery mesaage. AS IS / AS DESCRIBED” Click here to search for synths on eBay

Yamaha DX11

“needs a little love. 1 key is broken off. and 1 other key has light chipping underneath. As pictured it says it needs it’s RAM battery changed…I have done that already and if you do a factory reset the original patch library comes up just fine…sometimes booting it off and on it loses those patches and goes into “sine” wave mode where it’s all just sine wave oscillators to play and back to a battery mesaage. AS IS / AS DESCRIBED” Click here to search for synths on eBay

Yamaha DX11

“A VINTAGE YAMAHA DX11 PROGRAMABLE SYNTHESIZER. Condition is Used. Shipped with USPS Priority Mail.
turns on but I have no idea how it works
does not have built-in speakers I do not know anything about musical instruments, a key is missing but everything looks great
I sell it as it is for parts or if you have any idea how it works it would be excellent
I do not accept returns if you go to bet is at your own risk
Thank you” Click here to search for synths on eBay

Yamaha DX11

“Hi,i have for sale a Yamaha D11 programable synthesizer that i am selling for spares and not currently working.The condition of the synth is fair but it does fire up fine.However there is a missing key and several keys are a little loose,one is also cracked.Currently there is no playing mode and i have changed the CMOS battery to aid its reset factory mode.I have pressed the edit,no 16 and 32 and then yes button but all i have managed to do after a couple of hours trying is to enter an edit mode.I can not currently get out of this mode at present.The illuminated screen has some fading didgits but all the buttons appear to work.The Pitch and Modulation wheels are all fine too.There are age related marks and scuff but i am sure it will come good to the right person.Can you bear in mind this is sold as not working so please take a look at the pictures to see the general condition.” Click here to search for synths on eBay

Yamaha DX11

“This has just been serviced and is fully working, all of the front panel tact switches (yes, all 48 of them) have been replaced with brand new switches (these tend to fail after 20 years or so and require a much harder push to work, or they get to the point where they don’t work at all) Also, all of the key contacts have been cleaned so that the velocity and aftertouch are working as they should, and the backup battery has been replaced too. It also has had a stunning new OLED white on black display fitted which looks glorious compared to the original dim LCD display. The upgraded OLED display cost me £50 plus fitting. The original LCD is included too so that it can be restored back to original condition if desired.” Click here to search for synths on eBay

Yamaha DX11

“This circa 1986-88 (?) DX11 powers up, but sounds like it needs work. None of the presets produce proper sound; a high-pitched digital squeal is heard in some cases, other cases no output at all. Garbled characters appear on the LED for certain button or preset selections. Repair or harvest for its very valuable parts.

Cosmetically it’s in good to very good condition. No keys appear broken, frame seems solid without cracks, just minor wear and tear.” Click here to search for synths on eBay

Yamaha DX11

“The Yamaha DX11 – successor to the more famous DX7 but with some crucial differences. Wheras the DX7, DX100 and all the previous synths in the DX family built everything out of Sine waves, the DX11 offered other waves like saw waves to construct much more gritty & interesting sounds.

But my personal favourite thing about the DX11 is its chip is incredibly close to the soundchip in the Sega Megadrive! So if you want to recreate a lot of the iconic sounds of Sonic 2, Streets of Rage & all the rest – this is the synth to do it,

The synth is all fully functional and in good condition since it’s older than I am, scarcely a mark on it. Its only flaw is the Ram battery has expired – all this means is that if it gets unplugged any user data doesn’t get stored. In practice you just factory reset the synth when you first turn it on (edit+16+32) turn off & on again and everything is working as it should.

I’ve been using it like this for several years, but after a few thin paycheques i’m having to trim down my audio gear & sadly that means this has got to go too. A Ram battery fix is a fairly easy job – i’ve done it before with another synth but never got round to it with this.

By the way this has a two pin power flex but includes a normal 3-pin Uk plug adaptor.”
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Yamaha DX11

“Yamaha DX11 FM Synth. Great condition!

All keys are fully functional with no problems at all.

Works perfect. There is a small chip (see picture) but it doesn’t affect any functionality of the synth.

This keyboard was taken care of and kept like a baby for the few years I’ve had it. ”
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Yamaha DX11

“Yamaha DX11 FM Synth. Great condition!

All keys are fully functional with no problems at all.

Works perfect. There is a small chip (see picture) but it doesn’t affect any functionality of the synth.

This keyboard was taken care of and kept like a baby for the few years I’ve had it. ”
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Yamaha DX11

“Selling a Yamaha DX11 in cosmetically very good condition. All keys, sliders, wheels, and aftertouch work. There is, however, a bugginess where some of the higher patches selected will go into a function or edit mode instead of straight to the patch. The workaround, I have discovered, is to press the “internal” button right after, to actually go to those patches. This occurs when choosing Bank B as well, and is remedied the same way. My guess for the permanent fix is to upgrade the firmware EPROM chip.

That aside, it’s a very clean board and it sounds great. Selling as is and asking for $100 cheaper than the current going rate considering the abnormal behavior.”
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Yamaha DX11

“great sounding unit here. the LEFT plastic side cover was cracked or broken sometime in the last 30 some years, and there was foam and tape Put over the missing end cap, to keep things protected and cover any sharp edges.
the unit works, and has a nice display. all of its buttons respond.” Click here to search for synths on eBay

Yamaha DX11

” The synthesiser is in excellent working and cosmetic condition. I’m no longer using it enough to justify keeping it and would rather it go to a good home. It’s a great synth and I’ve used it on loads of recordings. I especially like the synth toms and pad sounds. ”
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Yamaha DX11

” I bought this as a non working unit. The power supply had some loose solder joints which have all been repaired. Factory settings were dumped into it with sysex MIDI and sound superb! The synth was disassembled and cleaned head to toe! I was planning on keeping it so I did a very thorough cleanup of all the contacts and inspected all boards for corrosion. The buttons were ALL replaced ALL 48 TACT SWITCHES ARE NEW! No hard pressing or anything at all which is VERY nice. New battery installed so that’s good for another 20+ years.” Click here to search for synths on eBay

Yamaha DX11

“Vintage Yamaha DX11 Digital Programmable Algorithm Synthesizer. RAM battery changed and re sited to facilitate access. All 4 preset voice banks (A,B,C,D) present. Powers up with “change RAM battery” message but works normally. User manual included, service manual available online.”
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Yamaha DX11

“Great vintage synth in exceptional condition for its age. Its not mint but for a 30 year old keyboard, it has minimal scratches and cosmetic marks. I don’t think it has seen serious use and it certainly hasn’t been heavily gigged!

Recently serviced with new RAM battery – this keyboard is good for another 30 years! ” Click here to search for synths on eBay