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Korg RK-100S 2RD 37-key Red Keytar Synthesizer — main product image
Korg RK-100S 2RD 37-key Red Keytar Synthesizer
Korg RK-100S 2RD 37-key Red Keytar Synthesizer
Korg RK-100S 2RD 37-key Red Keytar Synthesizer
Korg RK-100S 2RD 37-key Red Keytar Synthesizer
Korg RK-100S 2RD 37-key Red Keytar Synthesizer
Korg RK-100S 2RD 37-key Red Keytar Synthesizer
Korg

Korg RK-100S 2RD 37-key Red Keytar Synthesizer

★★★★★3.9 (9 reviews)

Rock the stage with 200 onboard sounds, dual ribbon controllers, and 37 velocity-sensitive keys in Korg's iconic red keytar.

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Overview

The Korg RK-100S 2 Keytar in translucent red is built for musicians who refuse to be anchored behind a keyboard stand. With 37 velocity-sensitive keys and Korg's MMT (Multiple Modeling Technology) sound engine driving 200 presets, it delivers a broad sonic range — from aggressive lead synths to lush pads — all in a portable, strap-on form factor. The dual ribbon controllers are a standout feature, giving performers intuitive, real-time control over pitch, modulation, and filter parameters without interrupting their stage movement. The wooden body adds warmth to its aesthetic and a reassuring solidity in hand.

Beyond its role as a standalone instrument, the RK-100S 2 connects via USB and traditional MIDI, making it a capable controller for DAW-based production and external hardware synths. The included gig bag makes gigging convenient, and the striking red finish ensures it commands attention under stage lights. While the 8-note polyphony and 37-key range mean this is best suited for lead lines, solos, and melodic hooks rather than complex harmonic layering, that is precisely the role a keytar is designed to fill — and the RK-100S 2 fills it with style and substance.

Key Features

37-key Keytar USB MIDI Controller with Wooden Body

Included Gig Bag - Translucent Red

Velocity-sensitive Keys

Dual Ribbon Controllers

200 Onboard Sounds

Specifications

Number of Keys
37
Key Sensitivity
Velocity Sensitive
Sound Engine
MMT (Multiple Modeling Technology)
Polyphony
8-Note
Oscillators
2
Presets
200
Controllers
Dual Ribbon
Connectivity
USB, MIDI
Body
Wooden
Color
Translucent Red
Included Accessories
Gig Bag

Pros & Cons

👍 Pros

  • 200 onboard presets provide a wide palette of sounds without needing external gear.
  • Dual ribbon controllers offer expressive, tactile performance control unique to the keytar form factor.
  • Wooden body construction gives it a premium feel and stage-worthy aesthetic in translucent red.
  • Includes a gig bag, making it ready to transport right out of the box.
  • USB and MIDI connectivity allow it to double as a versatile controller for studio work.

👎 Cons

  • 8-note polyphony can feel limiting when playing fuller chords or layered patches.
  • 37 keys restrict the playable range compared to full-size keyboard synthesizers.
  • The keytar form factor may require an adjustment period for players accustomed to traditional keyboard setups.
  • No built-in speaker means you always need an external amplifier or PA for monitoring.

Frequently Asked Questions

The RK-100S 2 includes 200 presets powered by Korg's MMT (Multiple Modeling Technology) sound engine, covering a wide range of synth tones suitable for live performance.
Yes. It features both USB and MIDI connectivity, so you can use it to control DAW plugins and external MIDI hardware in addition to playing its built-in sounds.
The two ribbon controllers give you real-time expressive control over parameters like pitch bend, modulation, and filter sweeps, allowing for dynamic, hands-on performance without reaching for knobs.
Yes, it includes a fitted gig bag for transport and protection.
It offers 8-note polyphony, which is sufficient for lead lines and solos but may limit complex chord voicings.

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