“Up for sale is a fully functional korg mono/poly. The effects and chord memory buttons will sometimes double trigger, this happens a lot with vintage gear. Other than that every key, switch and pot triggers and sweeps like it should. After payment has been sent I will go out and buy a properly fitted case suitable for mail delivery. ” Link
“Up for grabs is a mammoth Korg Monopoly.
All 4 oscillators work and it sounds awesome. Very versatile with chord memory (1 note chords), x modulation effects and all sorts of bleepy and squelching hijinks.
Things that don’t work are the apeggiator, the pitch bend wheels and selector switches
above the pitch wheels.These could be an easy fix or something more serious, I couldn’t tell you sorry.
It’s also not in the best aesthetic condition, but hey it is 20 odd years old.
I’d recommend pick up (from Hornsby) as it is really heavy, but I’m happy to get a postal quote for you.” Link
” Verkaufe Korg Mono/Poly, legendärer Analog-Synth mit vier Oszillatoren, fetter Sound, sehr gut in Schuss, kürzlich vom Fachmann gewartet, kein MIDI. Gerne auch Abholung.” Link
“Good condition!
“classic” analog synthesizer.
All keys work good.
This item is 100v 50/60hz you may need a power converter depending on your country.
In US you can use direct ,but it is better to use it.
If you need a power converter please ask me.
And I can sell converter.” Link
“Verkaufe diesen einzigartigen sehr geilen Korg Monopoly. Habe ihn so gekauft vor 3 Jahren. Der Vorbesitzer war so von der schlechten Tastatur genervt , daß er sie konsequent entfernt hat . Das Gerät funktioniert einwandfrei! Habe 3 Jahre damit sehr viel Spaß gehabt. Man kann ihn mit MIDI oder auch CV GATE ansteuern .. Midi Clock für den Arpegiator inklusive . Eigentlich eins der abgefahrensten Geräte das ich kenne . 4 OSC , die sehr fett zusammen arbeiten . Aber auch nacheinander angespielt , Crossmoduliert ..uvm zersägt werden können . Es war Korgs Antwort auf den Minimoog, wurde aber was komplett Eigenständiges. Wuchtige Bässe ! Man kann ihn auch 4 stimmig spielen ! Akkorde uvm , und dabei jeder Note einen eigenen Sound verpassen . Mich hat das Fehlen der Tastatur nie genervt ( Sie ist einfach nur abgesteckt worden . Normaler Stecker . also auch wieder aufrüstbar) Das Holzgehäuse ist sehr einfach nachzubauen !!!! Hatte ir schon mal die Maße besorgt . Ca 20 Euro , die Tastur kriegt man auch noch hier und da . Stecker ran und fertig . Aber so passt er auf jeden Schreibtisch !!!! Spielte Ihn über MIDI mit ner guten Tastatur . aber auch CV GATE !.. Ab 1 Euro . Möge einer glücklich damit werden , wie ich es war . NOTVERKAUF wegen ARP 2600 Kauf” Link
“Hello,
I am selling my classic Korg Mono/Poly analogue synth.
I have had this since the early 90s.
As you will see from the main photo. The spring on the high ‘G’ key has gone. So the key is floppy, if you get my meaning! The note still sounds when you press the key, but it doesn’t stay up.
I have got a price for this to be repaired, including a general service, as it hasn’t had one in years!
Two specialist companies gave me quotes of £55 and £95.
It could also do with some contact cleaner. This was included in the quotes above.
It just needs a little TLC as it hasn’t been played properly for years!
I have recently plugged it in and all seems to be working fine.
I quickly moved over to digital in the mid nineties and to be honest never really mastered the art of analogue programming.
I assume that anyone interested in this, doesn’t need me to tell them how immense the sounds are!
You don’t see that many for sale, as those that are into their analogue synths tend to keep them. Say no more.” Link
“I have for sale a used Korg Mono/Poly Synthesizer. It includes the original overlay which you can see in the picture above.
It is in overall good condition. The corners have some dings and the right wood panel has a small crack from a previous owner (which you can see in the photo above). The cracked part is not cracked all the way through though and does not wiggle at all. Otherwise, all the lettering is fully intact (no wearing/scratches), all the lights work, all the buttons, knobs, switches, and keys function and move perfectly.
I bought this from a guy who had it professionally serviced before it reached me and I have not had any problems whatsoever with it.” Link
“Selling my beloved Korg Monopoly. Amazing analog synth. Can stack 4 oscillators in mono or 4-voice polyphonic. 2 LFOs. Amazing SSM filter. Oscillator sync and ring modulation. Two ADSR envelopes. Arpeggiator. And more. I installed the sample and hold mod in it. So it has two switches above the pitch/mod wheels. One chooses between S/H and normal MG (modulation generator). The other one chooses whether the S/H is clocked by MG1 or MG2/Arp Trig. The arp trig input is also modified to accept v-triggers. It also comes with a hard case. I recently tuned it up, and it is working great. Cosmetically it is also in great condition except for a chip taken out of one of the wooden sides. It comes with an ATA case too.” Link
“If you’re looking at this then you know howrare it is to find one of these in such good shape and fully functional. Afriend of mine who was the bass player for the Mark May band brought this oneby for refurbishment and has decided to sell the unit. Since I’m the electronictech who did the work I can verify the unit is in original condition and hasnever had any previous electronic repairs done and all components are original.
The only work needed was to have all potsand keyboard contacts cleaned to restore original functionality. Both theinterior and exterior were also cleaned.
This ones vinyl coated wood casing on thisone is in very good shape. The only notable damage was on a back corner. It wasa little dented with some minor vinyl peeling which I repaired. Consideringmost of them at this age show decades of road wear, this one is in near mint incomparison to others.
The knobs have the typical yellowing like anyvintage unit. They could be bleached them back to look new if you chose to butI left them vintage. ” Link
“good points,,… well its analogue,its a 4 oscillator mono…… or 4note poly analogue..nice filter..bad points,,on this one,, its in pretty good condition overall ,slight mark on the m/n crossover on monopoly wording..(see pics)and resonance pot is very slightly loose,still works fine though..all other knobs switches work as they should,all keys trigger ok, although i would recommend contacts cleaning maybe at some point in the future.. ” Link
“Selling the classic early 80s synthesizer Korg Mono/Poly in good condition. As every synthesizer this age, especially with wood chip boards, the corners are slightly worn off, and there are a few little spots of paint missing (in short, it has been used). It is in need of servicing (tuning mostly, and cleaning the ribbon under the push buttons). The octave selector switch for VCO4 is stuck, I think it just needs to be cleaned rather than replaced. Other than that it is in perfect working condition. I bought the synth in 2006, and since then it has always been in my studio, and not gigged. ” Link
“Korg Monopoly in good condition, though the wood panels are a bit bashed about. Recently had the power supply rebuilt. I would prefer collection, though it is flightcased, I’m not sure how good it would be to courier, if you were to want to arrange one, I would add extra bubble wrap, but as i say collection would be the better option.” Link
“I have for sale a used Korg Mono/Poly Synthesizer.
It is in overall good condition. The corners have some dings and the mono plastic button is missing but working (which you can see in the photo above). . Otherwise, all the lettering is fully intact (no wearing/scratches), all the lights work, all the buttons, knobs, switches, and keys function perfectly.” Link
“Korg Mono/Poly Synthesizer Classic Vintage Synth Great Retro Sounds Monopoly
A classic vintage synth by Korg.
Produces some superb retro tones – I bought this about 20 years ago, and reluctantly selling. It is the best sounding keyboard i’ve ever had the pleasure to have played. Esoteric and ethereal polyphonic sounds and fat dirty bass sounds when in Mono mode – oh and lots of other sounds in between. You can get lost for days in the sounds that this vintage beast is capable of creating.
I have used this keyboard for years in the condition that it’s in. Cosmetically you can see that some of the wooden edges have chips/wear in places. All the keys and knobs are present and doesn’t look like any have been replaced or repaird. A couple of the white keys don’t sound when pressed, but mainly the last key (which doesn’t sound) and the first and second to last white key, which sometimes need a little more pressure. Several of the black keys don’t sound. This is probably due to some surface oxidation on the switches, which should be simple to remedy in the hands of someone with electrical skills. Most of the keys and knobs work fine, some of the buttons sometimes need a press or two to swich in, but again I suspect this is something simple to remedy. The 1/4″ jack main output socket is a little wobbily, but seems to have worked fine for me. The other outputs and inputs are untested as i’ve never used them – although i did briefly have it connected to a Midi-CV converter and operated it through a sequencer for a bit which worked fine at the time.
Overal in reasonable condition for age but perhaps needs some slight attention and TLC in places.
Just to clarify that i’ve used this keyboard as is for ages and it’s always produced some unique and interesting sounds. It does ideally need a service, but in my opinion it’s perfectly good to use as is in spite of the bits of attention it needs.
Just so you can fully check it out, I would also really prefer collection in person, and payment by Cash on Collection or cleared Cheque in advance of collection. ” Link
“Korg Mono/Poly Synthesizer. Good working order.Light studio use only for last 12 years. A few issues. ‘HOLD’ button in Key Assign panel is not functioning. Resonance pot in filter section produces a little static. Key A3 is slightly unaligned though fully functioning. All other pots switches
and keys functioning as normal. Damage to veneer of wooden side panels (see photos)” Link
“Up for sale is my beloved Korg Mono/Poly, It’s in great condition for it’s age, it’s in perfect working order and I’ll absolutely miss it when it’s gone : (
Obviously there are niks and scuffs in various places but nothing abnormal for a 27 year old synth. I’ve had it for two years now and it’s never needed any maintenance aside from dusting; these machines are very robust and I’m sure it’ll keep ticking along for years.
It has a fabulous sound, the four oscillators stacked in unison mode bring a new meaning to the word ‘phat’, it’s simple to tune and it’ll stay that way for days.
The full signal path is completely working with no scratchy pots or faulty circuitry, everything is working absolutely as it should.” Link
“Up for sale is nice KORG Mono/Poly MP-4 vintage analog synthesizer.
The unit appears to be working fine, all the knobs and keys and buttons worked as I tested accordingly to the owner’s manual. There is a bit of noise on the volume knob, which probably could do with some cleaning/servicing.
Cosmetically its in nice condition as you can tell from the pictures. There are some minor wear and marks here and there on the body with a slight damage on the woodend, but nothing major. All original parts are there and in good shape, I have included plenty of pictures so you can see exactly how it looks.
Comes in Korg hard carrying case as shown.
I’m also including the original Owner’s Manual in Japanese.” Link
“Up for sale is nice KORG Mono/Poly MP-4 vintage analog synthesizer.
The unit appears to be working fine, however an issue with this is that some of the keys seem to be not responding. They are 1F, 1B, 1D, 2C, 2F# and 3D, with 1G and 3E keys not reacting too well and the sound goes on and off at times.
Otherwise, everything working well to the best of my knowledge, all the knobs and switches and buttons worked as I tested accordingly to the owners manual. There is slight noise on the volume knob, probably could do with some cleaning/servicing.
Very nice cosmetic condition as you can tell from the pictures. There is a sign of repair on one side of the woodend as shown, but apart from that there are only very minor wear and marks here and there, obviously been very well looked after. All original parts are there and in good shape, overall in great condition if you consider its age.” Link
“This auction is for the following:
KORG MONO POLY MODEL MP-4 SYNTHESIZER
SIDES ARE LITTLE BEAT UP
Shows signs of normal usage. Item shows normal wear with scuffs and scratches. Unit is in working condition. This auction includes everything pictured!” Link
“Recently serviced. Sounds amazing. Has a VCA control voltage mod. ” Link
“You are biding on a used Korg Vintage Analog Synthesizer Monopoly MP-4!!!
Great opportunity to own a true piece of vintage analog synthesizer. It shows some obvious wear and tear but all the knobs and keys work perfectly and sounds amazing!
Item ships from Gainesville Florida. I will only ship inside the Continental US and shipping is Free for the winning bidder or instant buyer!
I am including the original protective hard-case and a voltage converter for US users.” Link
“Hello and thanks for looking at my (and possibly soon to be your) Korg MonoPoly analogue Synthesiser. This synth is in great condition- all the keys, all the pots inputs and outputs work and it is in well cared for condition.” Link
“Korg Mono/Poly Converted into a Semi-Modular Synthesiser
You are bidding for a heavily modified Korg Mono/Poly semi-modular monosynth with embedded ring modulator.
It has been transformed into a completely unique CV controlled semi-modular monophonic synthesiser with an angled panel reminiscent of the MS-20 series of synths.
Its veneer ends and the overall finish are a bit shabby but the synth works wonderfully and sounds warm and cosmic with the added versatility of the patch-bay.
It’s filter is particularly noteworthy, going from warm but snappy to thick,resonant and squelchy with the ability to emphasise harmonics with great precision.
The standard Mono/poly has the following modules:
2xLFO ( one with triangle, sawtooth, ramp and square)
portamento
4xVCO (triangle, sawtooth, PWM, pulse) with switchable sync and xmod routing
noise generator
resonant, self oscilating VCF (low pass)
2xADSR
CV input
dual polarity trigger (gate) input
VCO FM input
VCF FM input
Here is a list of the added patch points:
Mod1 out: Pitchbend wheel section output
Mod2 out: Modulation Wheel section output
MG1(LFO1) out
MG2(LFO2) out
Noise out
VCO1 out
VCO2 out
VCO3 out
VCO4 out
Mod1 in: this CV added to the pitchbend section input
Mod2 in: this CV added to the modulation wheel section input
MG1(LFO1) FM in: not working
VCF EG out
PWM2 in: this CV modulates the “PW” wave form’s pulse width (allows two separate PWM rates)
Ext in: this audio signal has replaced the noise signal that goes into the filter (noise can be repatched manually)
Ring modulator in1
Ring modulator in2
Ring modulator out
Example patch: ring modulate two separate synced VCO pairs with different PWM speeds against each other and feed it into the filter…nom nom nom!
I am also including some patch leads and the still functional mod-wheel and pitch bend section because it can easily be plugged back into the main circuit board inside the case if you want to make an external box for it and an entrance point or extension for the cable.” Link
“This is the Korg Monopoly synthesizer. Of course, if you are looking you probably know all about this great little synth. In summary, this is a 4-voice synth, you can control a great deal, for each voice, pitch, waveform, octave, as well as set it up to play as a four voice mono synth. There are numerous options, for modulation (2 sections with x-mod) perhaps it’s coolest feature.
This unit is an outstanding item. The case has been replaced with real wood (oak) , so make sure to check out the pictures.
The outside, panel, knobs etc, are all in excellent condition and show no abuse. The power supply has been rebuilt and, the full synth has been recapped, so should run flawlessly for a long time to come. the power none tour has been changed to a standard IEC connector (see photo), for convenience. It is fully calibrated and ready to make music.” Link
“Up for sale is KORG Mono/Poly MP-4 vintage analog synthesizer in a very nice condition.
The unit appears to be working fine, all the knobs and keys and buttons worked as I tested. Please note that I’m not a technician, and I have only done basic tests accordingly to the owner’s manual. There is a bit of noise on the volume knob, probably could do with some cleaning/servicing.
Very nice cosmetic condition as you can tell from the pictures. There may be some very light wear and marks here and there on the body with a slight damage on the woodends, but nothing major. All original parts are there and in good shape, overall in great condition if you consider its age.” Link
“Vintage analog synthesizer. We bought this synth new in 1982 and used it for a number of school functions in the 80′s. It has sat in it’s original box for the last 25 years,
so it is time to let go and let someone else enjoy it for a while. ” Link
“Recently serviced. Sounds amazing. Has a VCA control voltage mod.” Link
“Up for sale, Korg Mono/Poly. Used in my non smoking home studio. Check out my other gear I have for sale also.
Condition- Has a few blemishes, the wood sides have been damaged in the back corners, the luster cover is missing in one of the back wood sides( Check out the pictures) Face plate is clean, without any major blemishes.
The synth has been overhauled, all the electrolytic and tantalum capacitors have been replaced, power supply rebuilt, is been tuned and calibrated to specs, no scratchy pots, new op amps (JRC 4558DD low noise type) all keyboard contacts 100% functional. All features of the synth are tested and are fully functional. Sad to part with it but have decided to splurge on a modular. ” Link
“KORG MONO/POLY ANALOG SYNTH
* Recently Serviced
* Fully Functional
* All Keys, buttons, knobs work as they should
* 4 OSCs in POLY or Unison mode
* Very Nice filter section
* Arpeggiator in Unison or Poly Mode (very powerful, no other synth has this option)
I recently had this synthesizer callibrated, and cleaned. All keys are straight and engage as they should. I went over all the functions and it works wonderfully. The OSCs stay very stable, no need to warm up, they stay in tune. Functionally it’s 100%, cosmetically it looks great but It has a few minor knicks on the wood but like I said all minor.” Link
“KORG MONOPOLY IN VERY GOOD condition, FLAWLESS!
COMES WITH STURDY ALUMINIUM FLIGHT CASE!” Link
“Korg Mono/Poly analog synth in excellent cosmetic and electronic condition – unit has been babied. Comes with Synhouse’s MIDIJack installed. The original (cheap) cabinet has been replaced by a beautiful maple quilted cabinet made by Synthwood – the pictures don’t do it justice. Extra parts included: 2x original knobs; a Korg Polysix CHORUS board; and a Korg Polysix control board for the CHORUS. These boards were taken out of a working Polysix many years ago and I have no idea if they work or not – it is very likely that these boards do not work any longer and may be in need of repair. At some point I wanted to add the Polysix’s CHORUS effect to the MP, but never got around to doing it. So here they are in case you are interested in doing the mod. Comes with a copy of the manual and MIDIJack’s docs. Plenty of information is available for this powerful analog synth. Sold as is due to its age, no returns.” Link
“KORG MONOPOLY IN AMAZING CONDITION WITH FLIGHT CASE! VERY RARE IN THIS COSMETIC CONDITION!
230V! ” Link
“Classic Korg Mono/Poly synth for sale. I’ve had this Mono/Poly since 1987 and it’s only ever had studio use. Condition is generally excellent, there are some slight scuffs on the corners and edges of the end plates (visible in the photographs) as you might expect on a 30 year old piece of equipment, otherwise everything works and is in very good cosmetic condition.
The Mono/Poly is the ideal synth for phat bass and lead sounds as you can combine the four oscillators for complex and chunky noises. There is also a built-in effects circuit which give you dedicated controls for tweaking the sound further. Artists who have used the Mono/Poly include Chemical Brothers, Tangerine Dream, Vince Clark/Depeche Mode, the Orb and more recently MGMT.
I’ll miss the old girl after 25 years but I just don’t have as much time for recording these days.
This is a UK spec keyboard so no worrying about shipping from abroad or voltage compatibility. ” Link
“You are bidding for an original Korg Monopoly Synthesizer. Original box, manual & instruction tape. In good condition, working, but probably needs a service as it hasn’t been used for many years.
Given the size and weight of this keyboard I would be happier for buyers to collect if at all possible. If required I can get a quote for a courier but would be happier with collection.
If you wish to see the keyboard and try it before bidding this can be arranged.” Link
“This listing is for a Korg Mono/Poly MonoPoly synthesizer. The unit is is in excellent cosmetic condition and fully function, exception the headphone output doesn’t work. All other outputs work perfectly. ” Auction ended. Click here to browse on eBay.