Korg RK-100S Black Keytar 37 Key Shoulder Keyboard & Synthesiser W/ MIDI & Case
SKU: 92930634021

Korg RK-100S Black Keytar 37 Key Shoulder Keyboard & Synthesiser W/ MIDI & Case

$674.55 $749.50
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Description

Korg RK-100S Black Keytar 37 Key Shoulder Keyboard & Synthesiser W/ MIDI & CaseKorg RK 100S Keytar 37 Key MIDI Shoulder Keyboard & Synthesiser Black W Case Appearing in 1984, the RK 100 remote keyboard broke the chains of keyboardists, setting them free to perform as they liked. With a stylish body available in four colors, it allowed the keyboard player to challenge the vocalist or guitarist for the main role on stage. Thirty years later, the RK was resurrected. Although beautiful curved surfaces have been added, the essence of

Korg RK-100S Keytar 37 Key MIDI Shoulder Keyboard & Synthesiser - Black W/ Case 

Appearing in 1984, the RK-100 remote keyboard broke the chains of keyboardists, setting them free to perform as they liked. With a stylish body available in four colors, it allowed the keyboard player to challenge the vocalist or guitarist for the main role on stage.

Thirty years later, the RK was resurrected. Although beautiful curved surfaces have been added, the essence of the original and very popular design is unchanged. What had been a somewhat large and heavy body has been made more compact and lightweight thanks to modern components such as a slim keyboard. While the original required an external sound module, the new RK-100S contains a built-in analog modeling sound generator.

New features and functions include two ribbon controllers, an arpeggiator, and a vocoder, and there are also "favorite" buttons that allow you to register frequently-used sounds for one-touch selection. The RK-100S is your choice for smarter, more active, and more enjoyable performance. (KORG offical website)


The Korg RK-100S is an awesome gift for anyone who is into 80's music / keytars. The MIDI out function means you can use this unit with your other MIDI compatible synths / sound modules. This unit would also be great for a retro inspired video clip or movie, to rock out on stage with or add something fun to your current set up. 


Condition:
  • This Korg RK-100S has been used.

  • This unit is in great condition overall. It shows a small amount of wear, nothing major at all and is overall a nice piece. Please see photos.

  • This unit has been thoroughly tested and we can confirm it is working as it should. 

  • This Korg RK-100S will be shipped with its genuine Korg soft carry case. 

  • This unit can power off AA batteries or a 9V positive centre power adaptor. Neither are included in the sale.

  • Sale is for unit and case only. Nothing else is included. 
Specifications:
Color:
Black
Keyboard:
37-keys (Slimkey, velocity sensitive, no after touch)
Sound Generation System:
MMT (Multiple Modeling Technology)
Program
Number of timbres
Maximum 2 (when using Layer, Split, or Multi)
Polyphony
Maximum 8 voices (Maximum 4 voices when the vocoder is selected)
Synth
2 oscillator + noise generator
Oscillator 1
Waveform: SAW, PULSE, TRIANGLE, SINE, FORMANT, NOISE, PCM/DWGS, AUDIO IN
Modulation: WAVEFORM, CROSS, UNISON, VPM
Modulation: WAVEFORM, CROSS, UNISON, VPM
Oscillator 2
Waveform: SAW, PULSE, TRIANGLE, SINE
Modulation: RING, SYNC, RING+SYNC
Wave shaping
WS type: DRIVE, DECIMATOR, HARDCLIP, OCT SAW, MULTI TRI, MULTI SIN, SUB OSC SAW, SUB OSC SQU, SUB OSC TRI, SUB OSC SIN, LEVEL BOOST
Multi-mode filters
Filter 1: -24 dB/oct LPF ~ -12 dB/oct LPF ~ HPF ~ BPF ~ Thru Filter 2: LPF, HPF, BPF F
Vocoder
16-band vocoder, adjustable level and pan for each band, Formant Shift function, Formant Hold function
Effects
Timbre
2-band EQ
Master effects x 2
17 effect algorithm Master effects
Arpeggiator
UP, DOWN, ALT1/2, Random, Trigger (6 types), Step Arpeggiator function
Programs
200 programs
Audio Input/Output
Input
Input jack（Mono dynamic mic, Line input）
Intended for a mono dynamic microphone which doesn’t require power, this jack can also be used as a line input
Input select switch
MIC1: Mic (Non Powered) [Gain Low]
MIC2: Mic (Non Powered) [Gain High]
LINE: Line Input (mono L-ch input)
Connector type: mono mini jack
Output

Output jack (Headphone, Stereo, Line out)
Maximum output: 25mW + 25mW @ 33 ohms load
Connector type:φ6.3 mm, stereo phone jack
MIDI:
OUT
USB:
Type B
Display:
7-segment LEDs, 3 digits
Battery Life
Approx. 8 hours (using alkaline batteries - not included)
Dimensions
(W) x (D) x (H)
830 x 262 x 71 mm/32.68 x 10.32 x 2.80 inches
Weight
4.0 kg/ 8.82 lbs. 


Postage:

If you are in a remote area you may incur extra fees. 

 

International import tax, duty, vat, custom fees or any other charges are not covered by us, nor included in the shipping fees. These are the responsibility of the buyer.


Return Policy:

Returns will only be accepted for manufacture defects / faulty items. Please contact us if you have any problems with your purchase and we will strive to work it out with you.


Please contact us with any enquiries, and check our other listings for more pro audio and accessories. 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92930634021

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4.7 ★★★★★
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M
Verified Purchase
Maverick
Charlottesville, US
★★★★★ 5
Must get!, Great interaction, mind stimulation
Color: Orange
Love this my pup can't get enough. My pup loves this and is hard on it. She throws it all around chases it and guards it like it is her child. It is strong, sturdy easy to charge and fun to watch her engage with it. Definitely must have and I will buy more. It shakes and rolls around, it walks itself and engages the pup to chase. The design is spectacular. It is light weight and the noise level is typical of a toy engaging response.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
J
Verified Purchase
J. Rogers
Birmingham, US
★★★★★ 5
This is a great ball for high energy dogs.
Color: Blue
I have a Belgian Malinois, so you can imagine the Maligator jaws. Just opened this today and let her play with it indoors. She LOVES IT. It wore her out and it’s a toy she can really stay focused on without needing me to throw or roll for her. It moves on its own! I supervised her play. I was hoping it was too big to get under the couch, but no. It goes right under it. I had to block off the gap so I didn’t have to keep getting it out from under for her. The outter “shell” is very durable! When she had resting moments, she chewed it pretty good - I could hear the material squeaking against her teeth. I was worried she was tearing it up, but nope! Not a mark on it. It’s easy to set up and operate. It needed charging before play. After hours of play, she was able to somehow unscrew the outter shell. This concerned me bc the smaller, inner ball mechanism came out but I saw it right away and was able to put it back together. So, make sure it’s screwed together tightly (which I thought I had done without breaking it) and check it from time to time to make sure it hasn’t loosened. This is a great ball for her incredible high energy drive. It gives her the work and fun play she needs to get tired, which I love. This toy is on the expensive end, but so far it’s worth it. Now we’ll see how long it lasts!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
C
Verified Purchase
Carol D
Chelsea, US
★★★★★ 5
Love love it
Color: Blue
Best dog toy ever. I have a 1 year old boxer who is full of energy (understatement). This ball has provided more entertainment for us both than any dog toy I’ve ever purchased. Charge holds well and has a very resilient shell. I love it. Worth the price.
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Reviewed in the United States on May 23, 2026
M
Verified Purchase
Megan
Fort Morgan, US
★★★★★ 4
Great ball for limited entertainment. Replaceable outer shell is an amazing option!
Color: Blue, Color: Blue
Bought this for our 45lb, ball-obsessed Dutch shepherd/pit bull dog mix. I had one of these years ago with the hard shell and couldn’t be happier with the new foam shell. The new foam shell is much quieter and while our dog might put holes in it with his teeth, he doesn’t seem to ever pull pieces off. For engagement level, he found it VERY interesting at first and was scared to grab it, but once he got over that he started holding it in his mouth even when it shakes and just tries to keep it. Isn’t the best for fetch or anything as he has trouble letting it go when it is actively moving, but it makes him happy while he has it. We just make sure to monitor him while it is out. The ability to change the outer shell and just buy a replacement for the shell instead of a whole new toy is a lovely feature that makes me very happy to continue buying from this company.
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Reviewed in the United States on April 19, 2026
A
Verified Purchase
April L Patrick
Belleville, US
★★★★★ 5
Great Interactive Option
Color: Blue
To start, I have been very happy with this purchase. A couple of key points for me are durability and being able to keep my dog's attention. I have had it for almost a year, just a month shy, and she hasn't managed to get through the foam outer shell even though she tries real hard to do so. Let's just say, she's hard to find toys for because of her habit of finding the point of failure where she can pick and gnaw at until the toy is no longer safe for her to have. With this toy, she not only found her match, but it also has her watching, waiting, and even stalking. Only one small issue has recently occurred: the motor has started having an issue where the charge doesn't hold, and it doesn't remain on afterwards. I have reached out to Cheerble directly to see about replacing it since I am still within their 12-month timeframe, and they responded right away.
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Reviewed in the United States on April 22, 2026

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