Skip to main content
Play Video

KORG RK100S 2 Keytar/Synthesizer Red

Q&A SKU #L91037000001000
749.99 $749.99
6-Month Special Financing
Limited time Learn more
More ways to pay:
Lease-to-own with Progressive Leasing. Learn more
Loyalty Points Icon
Loyalty Points Icon
Earn 6,000 reward points
($60.00 in credit)
Earn 6,000 reward pts.
($60.00 in credit)
Inventory Msg Check Mark Inventory Msg Exclamation In Checkout Promo Inventory Msg Download Icon
In Stock & Ready to Ship
Most orders placed before 3 p.m. ET ship same day (except weekends and holidays).
  • Free Shipping
  • Top Seller
  • Flexible Financing
  • Lowest Price
Product Warranties Icon Product Warranties Icon

Gold Coverage Protection

Protect your gear

Chevron Right Icon

More beautiful than ever, the long-awaited rebirth of KORG's famous keytar is here.

Since its debut, the RK-100S keytar has been a hit for its uniquely ergonomic styling, powerful sound engine and standout looks. Now by popular demand, the RK-100S returns in a big way.

The artisanal wooden body inherited from the original RK-100 is a hallmark of the 100S, which is now available in a finish that accentuates its woodgrain. Numerous sounds ideal for solo performance have been added, making the RK-100S fit instantly into any musician’s stage performance.

Clear finish that beautifully shows the woodgrain
The greatest attraction of the RK series is its beautiful body shape that refuses to be bound by the conventional constraints of keyboard instruments. The wooden body is strongly influenced by guitars, featuring a design that includes both strength and softness to give it an ageless attractiveness.

The RK-100S 2 further progresses this attention to detail, and features a clear finish that lets the woodgrain show. Since each individual unit will have a different woodgrain*, it projects an even greater sense of high quality and taste than before. Although it is an electronic instrument, each unit is finished with careful attention, making it an instrument with a distinctively unique presence.
*Since the body of this instrument uses natural wood, please be aware that there will be individual differences in the woodgrain and appearance.

Newly featured programs that shine with presence for soloing
The renewed RK-100S 2 significantly expands upon its predecessor’s built-in programs. In particular, KORG has strengthened its complement of lead synth sounds and other solo sounds that let the musician shine. KORG has added many of the latest sounds frequently heard in today's music scene, providing 200 stage-ready presets to cover all genres. The sounds emitted from this compact body are supremely powerful, and these sounds can be instantly accessed during a live performance by using the favorite buttons on the top panel. Also provided is an arpeggiator with a diverse range of patterns.

37-note slim keyboard that's easy to play
Both looks and keyboard feature an understated design that will feel comfortable for any player. The RK-100S uses an acclaimed 37-note slim keyboard. While keeping the overall size compact and lightweight, we have focused on making this mini keyboard uncompromisingly "playable."

Two ribbon controllers expand your performance possibilities
The RK-100S is designed for your performance style—whether it be minimalist or aggressive when it comes to modulation. It features two ribbon controllers you can use to dynamically modify the sound.

The short ribbon provided on the neck lets you control the pitch bend and modulation. The long ribbon located on the keyboard can be used to control the pitch or filter. You can use this to create bold and smooth sweeps for sustained sounds. It also supports scale performance, in which notes can be sounded simply by touching the ribbon, giving you free scope for unconventional performances that would not be possible with standard keyboard playing.

Battery operation with long operating life
The RK-100S can be powered by six AA batteries. Simply connect headphones to the instrument, or use a cable to connect it to an amp, and you're ready to start playing just like a guitarist. Since it can handle up to eight hours of continuous operation, you can concentrate on your performance without having to bother with power cables on stage. Of course, you can also use a separately sold AC adapter if you like.

Vocoder function adds an accent to your stage performances
The monaural mini-input jack accommodates mic input, so you can connect a headset mic and enjoy full-fledged vocoder playing. You can also connect a smartphone, etc. as an external source input, and have fun playing along with a favorite song.

A great choice as a master keyboard
The RK-100S is not limited to playing its preset sounds. It is equipped with a MIDI output connector and USB port, so you can also use it to play a soft synth or an external hardware sound module. Furthermore, its elegant looks make it a great choice as a master keyboard. You can use the PC editor to download detailed settings for MIDI, and the internal sound engine from the KORG website via USB.

A full complement of accessories including a soft case
Included with the instrument are a strap that you'll need for performing, a dedicated soft case, and an elegant logo sticker. Apply it to customize your instrument for that extra edge that puts you ahead of the crowd.


  • Clear finish shows the beautiful woodgrain
  • New programs emanate powerful presence when soloing
  • 37-note slim keyboard for easy playability
  • Two ribbon controllers to broaden your performance potential
  • Battery operation allows long playing time
  • Vocoder function lets you accent your staging
  • Also a great choice as a master keyboard
  • A full range of included items such as a soft case

Order the RK-100S 2 now.


RK100S 2 Keytar/Synthesizer Specifications:

  • Keyboard: 37 keys (Slimkey, velocity-sensitive, no after-touch)
  • Sound Generation System: MMT (Multiple Modeling Technology) program
  • Number of Timbres: Maximum two (when using Layer, Split, or Multi)
  • Polyphony: Maximum eight voices (maximum four voices when the vocoder is selected)
  • Synth: Two oscillators + noise generator
Oscillator 1
Oscillator 2
  • Modulation: RING, SYNC, RING+SYNC
Wave Shaping
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
  • Timbre: 2-band EQ
  • Master Effects: 17-effect algorithm
  • Arpeggiator: UP, DOWN, ALT1/2, Random, Trigger (six 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-channel 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
  • USB: Type-B
  • Display: 7-segment LEDs, three digits
  • Power Supply: Six AA batteries (alkaline or nickel-metal hydride) or optional AC adapter (9VDC)
  • Battery Life: Approx. eight hours (using alkaline batteries)
  • Dimensions (W x D x H): 32.99" x 10.35" x 2.87"
  • Weight: 6.94 lb. (including batteries)
  • Included Items: Manual, sticker, strap, soft case, AA alkaline batteries x6
  • Accessories (Sold Separately): AC adapter

Questions & Answers

Do you have questions about this product?

Prop 65 Warning Icon
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to
Shop with a Friend
Free Shipping
  • Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
  • Orders placed before 3 p.m. ET usually ship the same business day.
Learn More
2-Year Free Warranty on Guitars

Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

Contact Us for Details
We're Here for You

Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

Contact Us
Proactive Advisor Support Chat