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Yamaha DX11

“I’ve owned this from new, only used in home studio. All working fine as far as I can tell, not tested all of the inputs/outputs as don’t have controller pedals etc. No manual, but it is easy to find online. Battery replaced in last 18 months.”
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Yamaha DX11

“Yamaha dx11 synthesizer, one of the really good 4-op FM synths from the 80s.

This unit works properly but has some minor issues

the keys with blue tape are loose, they work but either rattle or get partially stuck.” Click here to visit listing on eBay

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Yamaha DX11

“cool thing, 8 part multitimbral, also has extra waveforms, so brings something new to the known universe. good and fully working condition.

aftertouch can be a bit stiff, also some buttons require firm/double push sometimes. other than that – good and fully working. with fresh battery. ”
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Yamaha DX11

“Pre owned

With case

Manual

And foot pedal

We dont have an amp

So we plugged in headphones

And could hear everything”
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Yamaha DX11

“Yamaha DX11 Programmable Algorithm Synthesizer w Case – Black. Condition is Used. Shipped with USPS Priority Mail.” Click here to visit listing on eBay

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Yamaha DX11

” UNIT IS IN USED CONDITION SOLD AS SPARES / REPAIRS DUE TO FAULTS DETECTED DURING TESTING. THE UNIT POWERS ON. THE CNG RAM BATTERY MESSAGE COMES UP ON THE DISPLAY. ONE KEY IS MISSING AND ONE KEY IS JAMMED / STUCK ENGAGED. ALL OTHER KEYS WORKING AND SOUND FINE. NEEDS A LITTLE TLC / SERVICING AND WOULD BE A NICE UNIT ONCE THESE SIMPLE REPAIRS ARE COMPLETED. COSMETICALLY SOME RUBS / MARKS / SIGNS OF USE. SPARES / REPAIRS. CONSULT PHOTOS FOR EXACT ITEM YOU WILL RECEIVE. ”
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Yamaha DX11

“Yamaha DX11 Programmable Algorithm Synthesizer – Black” Click here to visit listing on eBay

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Yamaha DX11 Project Machine

“WORKING CONDITION: Non-Functional – Does not power on. We did not do any trouble-shooting.

PHYSICAL CONDITION: Poor – 5 Keys are missing on the keyboard. The pitch and mod wheels are bent as well. There are also some notable scuffs and dings around the synth. Overall, the physical condition is poor.

INVENTORY #48248

BRAND: Yamaha

MODEL: DX11

FUNCTION: Synthesizer Keyboard

PRODUCT DESCRIPTION: This listing is for a Yamaha DX11 61-Key Programmable Algorithm Synthesizer Keyboard

SPECS:

Serial #OI02397” Click here to visit listing on eBay

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Yamaha DX11

“YAMAHA DX 11 SYNTHESIZER. This had not been used in a number of years. It was found in the old studio of a gigging musician. We plugged it in and it sounded amazing, it brought back a lot of memories from the 1980’s.
It will need to be serviced but then the new owner will have an amazing piece of kit.” Click here to visit listing on eBay

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Yamaha DX11

“ITEM SHOWS COSMETIC SIGNS OF USE.

ONE KNOB BEND SLIGHTLY.

SEE PHOTOS FOR DETAILS.” Click here to visit listing on eBay

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Yamaha DX11

” YAMAHA DX 11 SYNTHESIZER Multitimbral FM Synth.

Although this is only a 4 operator fm synth the fact that it has multiple sound waves not just sine waves means that it can generate a really wide range of complex sounds. Unlike the tx81z module version the this has a quick edit function that has 4 macros that allow you to alter the sounds really easily. It can only go so deep but it gets you off to the races as you wrap your head a round fm synthesis. The unit’s in very good clean condition for the age and is working as it should.

Then thing i will say is that the bottom c key is a bit temperamental. the keyboard hasn’t been used for a while and the bottom c key probably hasn’t been used by me at all. I sprayed some electrical cleaner on it and it brought it back to life but whether ot not this is a permanent fix or not i can’t say so take it that the bottom c key is faulty all other keys are fine.

I don’t have the original packaging for this and i don’t want to frankenstein something together so its collection only from south east london.”
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Yamaha DX11

“YAMAHA DX 11 SYNTHESIZER.

In great condition for its age. Works perfectly and sound’s brilliant.

Does have a corner chip on the underneath bottom left of the synth (Pictured) and a couple scratches on the face but not too noticeable. Pitch slider is slightly bent to the right but does not effect the function at all and works as should and could easily be fixed.”
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Lot of 2 Yamaha DX11 Project Machines

“2 x Yamaha DX11 Synthesisers.

For spares or repair

I bought these two keyboards separately both in poor condition. I stripped each one down and cleaned them extensively, including cleaning each key one by one and polishing them before refitting. The bottom DX11 had about a dozen broken keys which I replaced but if you look closely you can see some are a slightly different shade, but I think this is better than having broken keys that don’t work.

They are both in very good condition, one is missing the bottom rubber feet

Unfortunately they both don’t quite work properly. They both power on.

The top keyboard seems to work quite well but button no. 15 doesn’t work (you can replace this, or it might just need a good clean with deoxit), and the top key does not sound. I suspect this is due to the rubber strip under the keybed not quite positioned right, I kept trying to move it a bit but couldn’t get it to work.

The bottom keyboard I can’t get it to make any proper sounds, all you can hear is quiet nasty digital noises, so I suspect this is a chip that has gone bad.

Upon testing them before listing them here I came across the above issues only. But months ago when I tested them I remember one kept cutting out and powering off and on. ” Click here to visit listing on eBay

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Yamaha DX11

“This is a great synthesizer – what’s not so great is the state of its power supply. Some components on it failed a while back, and I attempted replacing them, but the traces peeled off the board when desoldered. I got the new components in (in a hacky sort of method) and it worked for a while, until it recently bit the dust again and I’m not sure how to fix it! If you have a use for this – take it on!” Click here to visit listing on eBay

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Yamaha DX11

“The Synthesizer is in overall good condition but will need a new internal battery so I am unable to test the unit. It is sold as is. There are a few scratches on the case and couple on the keys but overall nothing too bad at all. There are a couple letters and numbers etched on the case from a previous owner. It could use cleaning and polishing to really look good.”
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Yamaha DX11

“Yamaha DX 11 vintage digital algorithm synthesizer good condition” Click here to visit listing on eBay

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Yamaha DX11

“One key is loose, one slight chip to side of another key, highest key (C6) does not function. Internal battery does need to be replaced (gives notification when keyboard is powered on)”
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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). Other than these superficial points, the keyboard is in full working order with no broken keys.” Click here to visit listing on eBay

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Yamaha DX11

“Good condition, with new internal battery. See photos.”
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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

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Yamaha DX11

“Yamaha DX11 in good condition! New RAM battery installed, other repairs were done, such as resoldering jack sockets and fixing loose mod wheel. Shipping within US only” Click here to visit listing on eBay

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Yamaha DX11

“This dates from around 1989 to 1990. It is the 4 operator version of Yamaha’s FM, but unlike the earlier DX7 it has a choice of waveforms, so the 4-operator version is easier to use but still powerful. I have owned it since 1992, never gigged.

It has a few scratches, but is otherwise in very good condition. The RAM battery needs replacing, but it works with the factory presets. You can download sounds and performance patches to it via MIDI, and you can program sounds. It will not retain any new sounds until the RAM battery is replaced.”
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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

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Yamaha DX11

” Yamaha DX11 Synthesizer. Condition is “Used”. New battery recently replaced. Used as a home studio instrument. All preset sounds and keys are working. Barely used gig bag will be included.”
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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

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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

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Yamaha DX11

“Yamaha DX11 great condition!! Replacement battery already done works perfect.. Condition is “Used”. Dispatched with Other 48h Courier.” Click here to search for synths on eBay

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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

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Yamaha DX-11

“YAMAHA DX11 61-Key FM Digital Keyboard Synthesizer Used Sounds Greatt. It Says something is going on with the battery inside the screen Condition is “Used”.” Click here to search for synths on eBay

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Yamaha DX11

” Yamaha DX11 – Classic 1980’s retro keyboard synth – Released in 1988.

Is in Good condition and comes with a solid keyboard lined protective case (as per pictures). Needs a new RAM battery. ” Click here to search for synths on eBay

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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

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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

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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

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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