“Univox/Korg Maxi-Korg-K3 sounds amazing, full and fat analogue goodness.
Good shape, has the usual dings and scrapes associated with keyboards of this vintage. Tested and all keys work and to best of my knowledge all sliders, filters, etc. working. Not a tech or synth expert though. Synth is sold as is. ” Link
“Univox/Korg Maxi-Korg-K3 sounds amazing, full and fat analogue goodness.
You won’t see another Maxikorg as clean as this one !
It is a very unique, raw and extremely powerful synthesizer..
The filters operate very smooth on this unit. A very monstrous sound!
a rare and somewhat underrated piece, a very unique sounding Korg that not too many know about.
This was their answer to the raw power of the Minimoog,
but it definitely has its own sound and direction.
It features two oscillators with a sub oscillator each.
The Sub Oscillators can also go into ring mod, which generates strange and harsh/bizarre
analog tones depending on pitches triggered and modulation choices.
Extra long 9 foot power cord.
With foot control, not all model have foot control.
The unit has some minor wear as to be expected for its age.
The cosmetic issues are as follows:
– Very small chips of wood missing, doesn’t affect at all the sound, please see last 3 pictures.” Link
“This is a Univox Maxi-Korg K3 vintage synthesizer. The unit appears to be fully functional. Everything is responding as you would expect though I am not familar with the synth so I have no firm point of reference. You can see that one of the key transpose switches is broken off. It still works but you have to manipulate it. The keys have a nice feel to it. I am selling it “as is” so definitely no returns.” Link
“Here is an Amazing and Beautiful Vintage Original Maxi-Korg 800DV / Unicord Univox K-3 / Maxikorg Analog Synthesizer in wooden case. This time capsule has sat in this old home-made wooden case for probably 30 years untouched. Very well preserved example of an original unmolested Maxi-Korg. I carefully tested this and although I have never used one and it is quite complicated, it appears to work well. ” Link
I’m selling my Maxikorg serial # 00082
cosmetic wood sign of age ( vintage )” Link
“This one is exceptionally clean, and has had all the wood professionally upgraded with Bubinga by Analogics. The synth is 100 % functional, with no scratchiness on sliders, or otherwise. It has been in my studio and never leaves the house, so it is in great cosmetic condition as per the pics. With the exception that one key G2 was repaired before I owned it. It does not affect triggering or functionality in any way, just a small hairline crack on one of the keys. The only non functioning item is the green ‘power’ light bulb which needs to be replaced, and indicates when it’s on or off. Other than that – she has had a tune up, cleaning, and power supply recap from This Old Synth within the past year and is in top condition. It is a very powerful mono synth, with extensive modulation capabilities, and is essentially (2) x MiniKorg K-2’s stacked into one monster synth ! For an amazing sound demo – I recommend checking out Jexus on You Tube.” Link
I’m selling my Maxikorg serial # 00082
cosmetic wood sign of age ( vintage )” Link
“FOR SALE IS THE LEGENDARY KORG MAXIKORG/K3/UNIVOX. BESIDES SOME MINIMAL WEAR, THIS DUOPHONIC SYNTHESIZER IS IN EXCELLENT COSMETICAL, MECHANICAL, AND ELECTRONIC CONDITION. THE MAXIKORG IS COMPLETELY SERVICED AND MODIFIED BY MARC MARC ELECTRONICS, AN EXPERIENCED TECH I WORK WITH FOR YEARS ALREADY.
FOR DETAILED INFORMATION ON THE SERVICE, CHECK THE SERVICE CERTIFICATE NEXT TO THE PHOTOS!!
BESIDES THE SERVICE THAT IS DONE THE MAXIKORG HAS BEEN MODIFIED WITH A LOT OF NEW AND INTERESTING FUNCTIONS (SEE SECOND PHOTO):
– CV V/Hz & GATE WITH INT/EXT SWITCHES FOR Gate AND CV.
– VC HPF-IN WITH ON/OFF SWITCH
– VC LPF-IN WITH ON/OFF SWITCH
– VCF Audio-IN (IN –>HPF–>LPF) SWITCHABLE VIA THE WAVE SWITCH. CAN BE BALANCED WITH THE WAVE BALANCE POT BETWEEN THE INTERNAL VCO AND THE EXTERNAL SOUND.
– VCA AM.
– VCO FM.
BECAUSE IT’S A DUOPHONIC SYNTH ALL MODIFICATIONS MENTIONED ARE INSTALLED DOUBLE!!” Link
“This is quite a powerful analog synth. The strengths of this unit are the dual filters, allowing lowpass, highpass and bandpass filtering, ring modulation, and, of course, a warm classic analog synth sound. This is one of my favorite synths for leads, but it’s capable of making a very wide range of sounds. The keyboard and dial board are perfect with no broken keys, or missing knobs or slide switches. The wood sides are a little scratched up and chipped but could be sanded and refinished if you’re handy. I’m including an adjustable Revere keyboard stand with this keyboard.” Link
“Korg 800dv also known as maxikorg or univox k3 circa 1975
Comes with circuit board for adding CV/gate” Link
“I’ve had this Maxikorg for several years and it has worked perfectly at all times. It has NEVER been used live and it has been in my home studio (smoke free, low humidly) the entire time that I’ve had it.
The keyboard keys and synthesizer sounds/functions all work perfectly (key pressure is even, no sticking keys, no intermittent notes, filters sweep cleanly across the full spectrum, etc). All orig hardware, including wood ends, decals, switches and colored tabs (only a couple of the colored slider-top decals missing). The keyboard range is fully in tune (octaves are evenly tuned) and the unit stays in tune extremely well.
This synth is set up in two sections, and thus is really two independent synthesizers in one, which is both unique and allows it to do what other synths can not do. For instance the arpegiator can toggle between the two voices, custom filter settings can be set for each synth section, and a sub oscillator (or ring modulator!) can be assigned to each of the synth sections independently.
It has a professionally designed modification (by Analogue Solutions), thus allowing it to receive cv input for pitch, gate, low pass and high pass filters independently for both of the synth sections (eight 1/8 inch CV inputs all together). This modification works perfectly, and has NOT altered the performance or functionality of the synth in any way whatsoever and is non-obtrusively located near the units outputs. The CV inputs are simply there to allow the synth to be used in conjunction with analog gear or modular synthesizers (as with any cv signals, caution should be exercised to ensure that proper external voltage be used. Also note, the voltage required to achieve full CV control varies with each system, and I believe this synth is Hz/Volt).
There is very little wear visually, just slight buffed areas around the knobs and sliders. No large scratches, and the end pieces are in very good shape (only small nicks in a couple of places).
Top Synth section : gate, pitch, hp filter, lp filter
Bottom Synth section : gate, pitch, hp filter, lp filter
I have posted two videos on YouTube to demonstrate that the instrument is fully functional and has been fully tested, all keys and controllers are working 100%. All active controls (filter faders and performance knobs) are quiet when moving them. The sub oscillator amount knob and selector was crackling slightly crackling due to the fact that I haven’t moved it in quite a while, but was already clearing up after a little bit of use. To check out the videos just click the below videos, or search for “Univox Maxikorg 800dv with CV inputs Video A” and “Univox Maxikorg 800dv with CV inputs Video B” on YouTube).
The sound is pristine and the filters are flawless. If you are looking for a vintage synth that has a extremely smooth sound (definitely in the 1970’s Moog and upper end Yamaha build and sound quality range), as well as an ability to range from growling to sparkling clarity – definitely check this one out! The filters’ sound far exceeds any digital emulation, and is not rivaled by modern circuit recreations. This unit is able to sit aside most modular systems and will be begging to be controlled. ” Link
“Up for sale is a Vintage 1970’s UNIVOX MAXIKORG K-3 KORG DV800 Synthesizer. Unit is in good cosmetic condition showing some marks of use here and there. There is a missing paint spot just in between the volume faders (see picture). Has been fully inspected and tested by our pro tech and it’s in perfect playing condition. All knobs, faders and keys are working just fine. Also have all its original parts, no mods. Very hard to find on the market these days. Awesome sounding synth and great collectable piece of gear! Serial number: 0384 (1973-1975)” Link
“Vintage Univox Maxi-Korg K-3 synthesizer in working order. The only thing that I found that doesn’t work or I don’t know how to work the controls, is the low volume side, the opposite side works but when slide the lower volume no sound. I am no expert on musical instruments, though I tried a few different controls and sliders and some different sounds where made. The far right key has a cig burn shown, also the far left key is a little higher than the others but still works, there is only 1 missing knob on the fine tuning. If there is any thing you want me to try on it let me know, I still have it hooked up.” Link
“I HAVE A UNIVOX MAXI- KORG (K-3) SYNTHESIZER FOR SALE …LOOKS NEAR MINT IN “UNDER THE BED” FOR 40 YEARS SHAPE… NO MISSING KNOBS… NO CHIPPED WOOD… UNUSED CONDITION. THIS IS ALL ORIGINAL…ORIGINAL . THIS IS ONE OF THE MOST SOUGHT AFTER MODELS OF THE THAT ERA (1975) ITS LIKE 2 MINI KORG IN ONE UNIT. A REAL COLLECTORS DREAM. CHECKED OUT AND SEEMS TO BE WORKING CORRECTLY. VERY VERY COOL. PREFER PICKUP IN CHARLOTTE NC. ” Link
“This is a Univox Maxi-Korg model K-3 synthesizer. I have owned it since the 1970’s and have never really used it. It’s about time that it goes to someone who can put it to use. There is some scratching noise when you operate some of the controls and 2 of the plastic slider caps are missing. I’m sure that after all this time sitting that it will need to be gone through and serviced. There is some normal wear to the wood trim. One of the black keys is sitting a little crooked, but secure. It still operates. This item is sold AS-IS. ” Link
Works great could use a little cleaning as some of the knobs are a little tempermental..
All of the keys work great and the thing sounds amazing .. ” Link
w/ custom road case (brand new foam inside case)
Serial # 770850
Tested and 100% Fully Working
I’m only the second owner of this Maxi-Korg and it has always been well taken care of and is fully working and sounds brilliant. The condition is excellent, cosmetic imperfections are minimal for a synth of this age. The custom roadcase has brand new foam installed and will serve the owner well for years to come. This is a spectacular synthesizer sure to please the winner of this auction, don’t miss your chance to own it.” Link
“Up for sale is an awesome vintage K3 korg univox synthesizer. dual oscillator. I just had this serviced and tuned up at one of chicago’s best . everything works excellent. One of the knob caps has been replaced as it was missing. the wooden sides have some wear(see photos) but are solid and heavy duty. the bottom and back has some scratches from prior use(see photos). I am not a keyboard or synth player and I figure if your interested in this you know all the details and amazing sounds you can make with this. Plenty of info on line to check out. There is no manual included but one can be downloaded on line.The keys all work great. No problems or sticky keys. Please realize this is quite heavy and will cost a little to ship. Weighs 35 lbs. 40 lbs packed. It will be shipped securely with care” Link
“Vintage Univox Maxi-Korg K-3 synthesizer in working condition. Cosmetic condition is pretty solid considering its age. Some wear to the wood, but no major cosmetic damage. Some of the plastic switch tips are missing, but all of the actual toggle switches & sliders are present. I am not all that familiar with this particular synth, however, I spent an hour playing around with it. All keys work, the tone changes when you flip a switch or move a slider. I tried both the “U” and “L” outputs, and both are sending signal. I cannot say for certain that it is in 100% proper working condition, but it sure seems like everything is working just fine.” Link
“The Maxi-Korg is in good conditon for its age. It was not used very extensively and mostly sat in storage. Everything works wonderfully but there are a few missing pieces (see pictures). It’s missing two fader caps, a cheap fix, and two switches. One of the keys is sticking up higher than the rest (second from the left) but is barely noticeable and still works perfectly fine. Finally, some of the faders are not as smooth as they could be which is common in these vintage synths. The issues are purely cosmetic and the synthesizer still works perfectly fine.” Link
“FOR SALE IS ONE KORG “MAXI-KORG” 800-DV TWO VOICE SYNTHESIZER. FULLY PROFESSIONALLY TUNED & REFURBISHED. ALL ELECTROLYTIC CAPS
REPLACED, FULLY RECALIBRATED AND TUNED. THIS UNIT SOUNDS INCREDIBLE. I CAN BUILD CUSTOM SIDE PANELS FOR IT FOR A FEE, COMES WITH THE STOCK ONES. THERE ARE A FEW SCRATCHES ON THE WOOD. SOME OF THE PAINT ON THE FACEPLATE IS WORN, AS HAPPENS TO ALL OF THESE. IT IS MISSING ONE SLIDER CAP, SHOULD NOT BE TOO HARD TO FIND. EVERYTHING WORKS AMAZINGLY WELL AFTER THE REFURBISHMENT.” Link
“This auction is for a Maxi-Korg Univox Electronic Synthesizer Made By Keio Electronic Tokyo, Japan. This is model K-3 and seriel number 0620. This is 117 V AC 50/60 HZ 15 Watts. This is more than likley from the late 60’s or early 70’s. This does have some wood delaminating from age and wear and also has key that sticks up but does work and the blue light does not light up anymore. One key is cracked. ” Link
VCO 1 Bottom 32 keys are sounding the same note, the top 12 work fine . VCO 2 top 12 Keys are playing the same note, the lower 32 work fine.VCO 2 high pass filter doesn’t work. One of the keys is partially broken and the wood sides have been painted black Some of the wood corners are partially chipped. An Alien sticker has been pasted on as you can see in the picture. The power light does not work, also one of the knobs has been replaced with a non matching one. Included is a printed manual. ” Link
Extremely rare and powerful analogue duophonic synthesizer circa 1975. This was Korg’s answer to the MiniMoog and they even called it the MaxiKorg. Just do a search for Korg 800dv as there is loads of info and reviews raving about it.
The 800dv is in perfect working order having just been professionally serviced by James Walker of Synth Repair Services so you can rest assured that everything works safely, correctly and all controls operate smoothly.
Cosmetically it’s in fair condition for its vintage. The wooden end cheeks are rather worn, the graphics have worn away in places and there are scratches here and there. Some of the knobs have their coloured caps missing but all the knobs are present. The plastic coated fascia surround has worn on the top edge where the underlying metal shows through. Overall though the condition is in keeping with its vintage (see pics).
These don’t come up for sale very often so this is a rare opportunity to acquire one of the most desirable synths ever made.” Auction ended. Click here to browse on eBay.
” This Korg Maxi-Korg synthesizer is in decent cosmetic shape, is fully functional, and sounds amazing. It has been modified by a previous owner to provide cv/gate/lpf/hpf outputs for each voice. The modification does not affect the intended functionality or sound.” Auction ended. Click here to browse on eBay.
“I am selling my Maxikorg analog synth from the 70’s. It is in great shape for its age, and I’ve never had a problem with it in the 8 years I’ve owned it. The synthesizer is dual voice. It is essentially two mini korgs in one housing. This is one of the most unique synths you will find. And it sounds great! As you can see from the picture, one of the keys is chipped. I have the chipped piece if you’d like to glue it back. Also another key is slightly raised from a previous repair to the keyboard. You can also see that the wooden side pieces show a lot of wear. Please ask me any questions you may have. I purchased the synth from a professional synth tech 8 years ago. That was the last time it was serviced. That being said, it has no issues, except a missing knob that you can see from the pictures.” Auction ended. Click here to browse on eBay.
“its a good, sturdy instrument, that REALLY sounds buzzy and analog but can also sound delicate. from the dawn of availability of synthesizer for the regular person. it has a lot of very odd features and has a strong low end in a mix.
it’s in great shape, and except for a missing slider cap it’s 100% functional. it even comes with the original manual.” Auction ended. Click here to browse on eBay.
“At auction is the Korg (branded as Univox) 800DV Maxi-Korg. This is a vintage monophonic/duophonic analog synthesizer circa 1975. Everything seems to function as it should, as I have some experience using synthesizers. There are two toggle switches in which the toggle has broken off, but the switch part is still there and still functions the way it is supposed to. Also, two toggle switchcaps are missing, but the switches are easily switched and function as they should. Three other knobs are not original stock knobs. All of the keys work as they are supposed to. From the photos, you can see that the synthesizer has some normal scratches on the wood and metal. This machine is amazing in that it is actually two blendable Korg 770 synthesizers, one stacked on top of the other, in the same synthesizer. In this way, it is duophonic. This can create some very interesting sounds to say the least. I hate to let this rare beast go, but other financial priorities need to be addressed.” Auction ended. Click here to browse on eBay.
“for sale korg classic maxi-korg synth some fisical wear from being a 37 year old keyboard but sounds great everything works great” Auction ended. Click here to browse on eBay.
“First of all this synth sounds amazing. It has a strong analog sound that really dominates any other instruments accompanying it. As might be expected one of the best parts is the filter. In addition to frequency and resonance it also has a “bright” to “dull” switch, and an “expand” switch, which seems to activate some kind of an envelope (although there are no ADSR controls). Monophonic. Has two parallel voices – upper and lower – each with separate output. Unintuitively, the sliders work from top to bottom (i.e., “0” is at the top, “10” is at the bottom). Cosmetically it is in G condition. The wood panel sides are scratched; the left side panel on the front is peeling; there is a small dent on the top ridge towards the left. Scratching on bottom and back. Connectors on back slightly tarnished. Does not come with “music stand” attachment or optional foot pedals. Light indentation (cigarette burn?) on the high A key. Some keys lightly scratched or faded. I have spent the afternoon putting this synth through its paces and also can identify the following electronic issues. Although I cleaned them with Chem-Wash and exercised them thoroughly, several of the knobs and sliders still are slightly scratchy. The “repeat” mode key on the lower right hand side has some sort of function – it delays the trigger – but it may not function properly (and I can’t see how it’s musically useful anyway). I am not sure exactly what it does. The two key transpose keys on the top right also either do not work or have no apparent function – they do not transpose an octave up or down as one might expect. The middle C# and E-flat keys seem to require slightly more pressure or a slightly sharper touch to trigger. The lower voice seems to be stuck on a square wave, nothing happens when you move the switch to sine or triangle, however the “chorus” function does work fully. On both the upper and the lower mode, the ranks (64′, 32′, 16′, 8′, 4′, 2′) work best on 16′, 8′ and 4′. They occasionally work on 64′, 32′ and 2′; peculiarly, I found them all to work fine when the rank for the ring modulator control is set in parallel. This may be the way it’s supposed to work, I’m not sure. I have tried to be as accurate as possible in this description so the buyer doesn’t have any surprises. I actually may be over-describing any potential issues, which could be solved for example by leaving it on for some period of time, or unscrewing it and cleaning contacts, etc. ” Auction ended. Click here to browse on eBay.
“This is a unique 1970’s vintage Maxi-Korg K-3 synthesizer. This synth is also known as the Korg 800DV and Univox K3 but was sold in the US under the name Maxi-Korg K3. The power of the Maxi-Korg lay in the way it could create and play sounds. In essence, it was two Korg 700S synths in a single box, so you could treat it as two distinct synths, creating two different sounds, and then playing them independently. Some other mid-’70s synths allowed you to play two notes, but these used the same patch parameters for both. Only the Maxi-Korg could produce two sounds that you could play as a composite, or as two independent synths. Yet this was only half the story, because the 800DV allowed you to allocate the voices in a huge variety of ways. This made it possible to program more realistic, more expressive, or more off-the-wall sounds than was possible on other monosynths. The Maxi-Korg was, and remains, one of the most impressive, flexible and articulate synths ever built.”
The owners manual can be downloaded as a PDF for free here: http://pdfdatabase.com/download/korg-maxi-korg-k3-800-dv-owners-manual-pdf-3827219.html
There is plenty of stuff out there on this instrument just plug in maxi korg into your search engine.
I’m almost embarrassed to say I giged with this instrument in the late 70’s and early 80’s when I played professionally. It’s been in storage since.
The only issues are cosmetics. All the keys/notes and controls work. I fired it up and checked all the keys and controls out just before listing it.
Due to its age I’m selling it as is.” Auction ended. Click here to browse on eBay.