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Korg NAUTILUS Synth & Workstation 73 Key



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    Product Description

    Here's What Korg Say About the NAUTILUS

    The most dazzling and expansive collection of sounds ever put into a Korg synthesizer

    NAUTILUS pushes the boundaries of what a performance synth and workstation is capable of. With the power of nine engines to drive a new approach to sounds, plentiful sampling, audio recording, effects, and processing power, there is simply no other synth that delivers more to explore sonically, with the workflow to get you there faster than ever. Korg spent years refining all our digital, analog, processing, and hardware technologies and delivering them in a way that helps the musician connect with their instrument. The result is the incredibly powerful, one-of-a-kind NAUTILUS.

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    • Nine different sound engines offer massive expressive power
    • New sounds offered over three broad categories
    • The DYNAMICS knob makes delicate expression possible
    • Make intuitive changes to sounds with the Realtime knobs
    • A user interface designed for easy operation
    • Convenient arpeggiator and drum track functions
    • Color TouchView Display
    • Set list mode that demonstrates its power in live performances
    • Open Sampling System
    • 16-Track MIDI Sequencer / 16-Track Audio Recorder
    • 16 Onboard Effect Processors
    • USB/MIDI Host Ports Accommodate MIDI Control Surfaces
    • Smooth sound transitions that eliminate dropouts when changing sounds, regardless of the mode you're in
    • 88-key model with piano touch, 73-key model with light touch and 61-key model available

    Nine different sound engines offer massive expressive power

    The NAUTILUS features nine dedicated sound engines to realistically reproduce sounds such as pianos, electric pianos, organs and more. To start, the enhanced SGX-2 piano sound generator offers delicate expressiveness to capture all the nuances of the acoustic piano, and NAUTILUS features the most piano libraries ever put into one product; with 12-step velocity-switched sound, string resonance and more. The EP-1 electric piano sound generator realistically reproduces seven different famous electric piano sounds. The CX-3 engine – the heart of our sought-after CX-3 reissue -covers the distinct sound of classic tonewheel organs. Add to that MOD-7 VPM/FM synthesis, the PolysixEX and MS-20EX for analog modeling, and the STR-1 for physical modeling, and you have essentially an engine for any type of sound you’re looking to get. Used together in Program or Combination mode, these distinctive engines create completely new timbres.

    New sounds offered over three broad categories

    The approach to the included sound on NAUTILUS, started with Korg setting aside our preconceptions of what sound should be like on a conventional music workstation, and instead focused on pushing the boundaries of sampling and programming to create a brand-new classifications of programs that we divide into three groups:

    “Unique” sounds:

    The NAUTILUS brings you distinctive sounds including phrase loops, prepared pianos, found percussion and more. Many seldom heard-of musical instruments found in different regions around the world can be difficult to play, but distinctive phrases played on these instruments are featured on the NAUTILUS. Use these phrases as-is in your songs—let your imagination be your guide. The NAUTILUS features sounds that were sampled for the first time just for this instrument, including prepared piano sounds created by placing different objects between piano strings and recording samples, or “found percussion” sounds made by turning ordinary items into instruments to be struck. Not only do these novel and mysterious sounds provide an unexpected flavor to your songs, they offer broad possibilities for sound effects used in film and TV music as well.

    “Current” sounds:

    The NAUTILUS also offers the freshest sounds that blend in well with today's music scene, including synths, drum kits, special effects and more. For synths, be sure to check out the EDM, electro and chiptune sounds for starters. Also, the NAUTILUS features more than 50 kinds of drum kits—sounds that most strongly reflect the changes in music over time. The special effect sounds offer useful material like drums added to dance music to create beats—sounds that you can put to use right away.

    Standard sounds:

    We’ve brought together all of the most important sounds a workstation needs including piano, electric piano, guitar, bass guitar and more, covering all genres. For the newly sampled piano sound, we’ve also recorded the lovely sonic ambience of the studio, and you can mix the piano and ambience sound as you like with the new ambience sound. A new electric piano model with a characteristic thick sound has been added, which works great for funky playing styles. We’ve also added many phrases that let you play back actual performances of guitar and bass parts that keyboardists will find useful.

    The DYNAMICS knob makes delicate expression possible

    With the DYNAMICS knob, you can instantly control the changes in volume and tone in response to how hard you play the keyboard (velocity); and you can customize this knob in real time to match the keyboard playing feel required for each style and song. Even when playing the same sound, you can turn this knob to get the feeling of playing a completely different sound. By finding just the right setting for your playing style, you'll uncover even more of the possibilities that the NAUTILUS offers.

    When you activate the DYNAMICS knob and turn it to the left, the keyboard responds more softly to your playing, giving you a wide range of dynamics. This allows for delicate, expressive playing when accompanying a piano solo or vocals, which directly reflects the dynamics of your performance. On the other hand, turning the knob to the right gives a stronger, more flat dynamic response. This brings out the sound when you’re playing in a band or ensemble, which works best when performing with a more even feel.

    Make intuitive changes to sounds with the Realtime knobs

    The six RT (real-time) knobs at the top left of the panel give you direct control over changes to the PROG and COMBI sounds. A variety of functions are assigned to each knob that lets you enjoy making changes to sounds, such as the filter cutoff and effect depth, the gate time, tempo and swing of the arpeggiator or drum track, the type of snare drum and more. In COMBI mode, you can group timbres and control their levels with the knobs. Further, you can press these knobs into the panel to lock them in place, preventing them from being accidentally changed while you’re playing. For instance, you could use this to enable only the knobs you often use onstage and push the ones in that you do not need.

    A user interface designed for easy operation

    For the NAUTILUS, we have completely rethought the user interface, considering that panel controls tend to become denser as more functions are added. The interface of the NAUTILUS lets users find just the things they’re looking for once they understand the principles.

    The MODE button lets you see what you’ve selected in each mode on a single screen, from PROG and COMBI to the set list, sampling, sequence and global modes. Each mode has tabs for each function, and the PAGE buttons offer more detailed editing with consistent operations. With the user-friendly navigation of the NAUTILUS, you can press the MODE button at any time to return to the start if you get lost. A dark mode is available for the display, using black as the primary color to reduce eye fatigue.

    Six quick access buttons are also available as shortcut buttons. The NAUTILUS further offers four templates as a continuation of the previous user-friendly features, which can be used to select modes like PROG and COMBI, as transport buttons for sequencer playback and recording and so on. You can also select your own settings as you like. What’s more, you can freely assign functions you frequently use and save them in one of four sets.

    Convenient arpeggiator and drum track functions

    Four scenes of arpeggio patterns and drum track sets are made available that perfectly match each PROG and COMBI preset sound. These are useful for switching between scenes while they’re played, for use when improvising during performance, or for expanding your vision when composing music starting from a sound.

    Color TouchView Display

    The nerve center of the NAUTILUS is KORG’s enormous eight-inch (800 x 480 pixel) WVGA color TouchView display.

    In addition to simply selecting a sound or choosing a parameter with the touch of a finger, the enhanced Touch-Drag ability allows more detailed control of parameter values. Interactive instruments and panel graphics provide the ability to do everything from adjusting the lid of a grand piano to connecting patch cable on a semi-modular synthesizer model.

    The TouchView display also hosts a convenient new Search Function, allowing you to search for (and preview) sounds based on their titles.

    Set list mode that demonstrates its power in live performances

    NAUTILUS can organize all of the resources you need to get through a song—or a set—using the Set List mode. Using the Set List mode, the TouchView display can host 16 color-coded touch-screen buttons; each one can instantly call up the appropriate Preset, Combination, or Sequence—regardless of mode!

    You can also select different button colors, such as when you want to change the colors within a song while playing live. This is a powerful feature for situations that require quick and accurate control. The Set List mode even adds a nine-band graphic EQ, allowing the overall tone to be tweaked to match the venue.

    Open Sampling System

    Using KORG’s Open Sampling System, NAUTILUS can quickly sample an external audio source, regardless of whether NAUTILUS is in the Program, Combination, or Sequencer modes. The Open Sampling Mode can even resample the performance of the NAUTILUS itself. The user sample bank, which extends the convenience of the EXs sample library to user samples, allows custom samples to be loaded and played, taking advantage of the gigantic SSD capacity.

    AIFF, WAV, SoundFont 2.0, and AKAI S1000/3000 format samples can be loaded into memory via USB memory. Additionally, you can use a USB Ethernet adapter to exchange large amounts of sample data with your computer at high speed. Instruments or samples that you've previously created on your PC can be used to construct a music production setup based on just the NAUTILUS itself.

    16-Track MIDI Sequencer / 16-Track Audio Recorder

    NAUTILUS features a sequencer/recording section that offers both 16 MIDI tracks plus 16 audio tracks; a great resource for putting together a dazzling performance or a brilliant production. MIDI sequencing makes it easy to capture ideas, inspiration, and pro-quality phrases using the Drum Track, or RPPR (Realtime Pattern Play/Recording) functions.

    The 16-track audio recorder simultaneously captures up to four tracks of 16-bit/24-bit uncompressed data at a sampling rate of 48 kHz. Play along with recorded tracks, add effects, and then resample the NAUTILUS itself and place the resampled WAV files directly in a track. When polishing your tracks, feel free to use mixer automation and editing functions such as copy, paste, and normalize to get the results you want.

    88-key model with piano touch, 73-key model with light touch and 61-key model available

    The keyboard on the 88-key model of the NAUTILUS uses a four-stage real weighted hammer action made in Japan, called the RH-3. This action is heavier on the lower notes and lighter on the higher notes for superb playability. The 73-key model features a much-requested light-touch synth keyboard from C to C, as with the 61-key model. This key action lets you play organ parts with plenty of glissandos, as well as synth solos that take advantage of the keyboard’s wide range.

    The 88-key model is fitted with luxurious wooden side panels, and the 73-key and 61-key models a completely new design with impressive curves that rise from the bottom of the unit to the sides, patterned after the NAUTILUS’ namesakes: the Nautilus submarine and the cephalopod mollusk. All of these elements make the NAUTILUS a distinctive instrument onstage as well, brimming with personality.


    System, Keyboard

    • System: NAUTILUS System Version 1.0
    • Keyboard: Natural Touch Semi Weighted, C – C (Velocity sensitive is supported, after touch is not supported.)

    Tone Generator

    Synthesis Types

    • 9
    • SGX-2: Premium Piano (Acoustic Piano)
    • EP-1: MDS Electric Piano (Electric Piano)
    • HD-1: High Definition Synthesizer (PCM)
    • AL-1: Analog Synthesizer (Analog Modeling)
    • CX-3: Tonewheel Organ (Tonewheel Organ Modeling)
    • STR-1: Plucked String (Physical Modeling)
    • MOD-7: Waveshaping VPM Synthesizer (VPM Synthesis)
    • MS-20EX: Component Modeling Technology (Analog Modeling)
    • PolysixEX: Component Modeling Technology (CMT Analog Modeling)

    Maximum Polyphony

    • SGX-2: 100 voices
    • EP-1: 104 voices
    • HD-1: 140 voices
    • AL-1: 80 voices
    • CX-3: 200 voices
    • STR-1: 40 voices
    • MOD-7: 52 voices
    • MS-20EX: 40 voices
    • PolysixEX: 180 voices

    Preset PCM

    • RAM 496 MB / DISK 2.3G (ROM 1,771 Multisamples, 3,955 Drumsamples)

    Build-in Expansion PCM Libraries

    • EXs301: German2 D Piano
    • EXs302: Italian F Piano
    • EXs303: Japanese Upright U Piano
    • EXs304: Prepared Piano
    • EXs305: Historical Keyboards
    • EXs306: Vintage Keyboards 2
    • EXs307: Strings & Synths
    • EXs308: Guitar Collection
    • EXs309: Bass Collection
    • EXs310: World Essence
    • EXs311: Background Loops
    • EXs312: SFX & Hits
    • EXs313: Found Percussions
    • EXs314: Expansion Drums

    PCM RAM Capacity

    • Approx. 2GB

    Wave Sequences

    • 598 User memory, 377 Preload (Support for stereo multisamples, synchronization of individual notes, and tempo-based settings.)



    • Open Sampling System (resampling, In-Track sampling)

    Bit Depth/Sampling Frequency

    • RAM: 16-bit/48 kHz stereo/mono sampling
    • DISK: 16 or 24-bit/48 kHz

    Sampling Time

    • RAM: Depends on the amount of available PCM RAM
    • DISK: Maximum 80 minutes stereo (879MB: 16bit)

    Sample Locations

    • 16,000 samples/4,000 multisamples (128 indexes per multisample)


    • KORG format, AKAI S1000/S3000 data (with advanced Program parameter conversion); SoundFont 2.0, AIFF, and WAVE formats


    • Time Stretch, Time Slice, Crossfade Loop, and other standard editing features.


    • Insert Effects: 12 Stereo in / stereo out
    • Master Effects: 2 Stereo in / stereo out
    • Total Effects: 2 Stereo in / stereo out
    • Timbre EQ: One 3-band EQ for each timbre/track
    • Effect Types: 197
    • Modulation: Dynamic Modulation and Common LFO
    • Effects Control Busses: Stereo side-chaining for compressors, gates, vocoders, etc
    • Effect Presets: Total 783 preset, Maximum 32 per 1 effect (Preset User)


    • Arpeggiator Modules: One module in Program mode, two modules in Combination and Sequencer modes
    • Arpeggio Pattern: 5 presets + ARP A 2,048 slots (1,593 come Preload) + ARP B 128 slots
    • Controllers: On/Off, Latch, Gate, Velocity, Length, Swing, Tempo

    Drum Track

    Preset Patterns

    • 1,272 (common with the preset patterns of the MIDI sequencer)

    User Patterns

    • 1,000 - Patterns created in Sequencer mode can be converted to drum track user patterns.
    • Trigger Mode/ Sync / Zone / Swing, Drum SD, Tempo settings can be specified.

    Sequencer / HDR


    • 16-track MIDI sequencer + 16-track hard disk recorder + 1 master track.

    Number of Songs

    • 200


    • 1/480


    • 40.00 – 300.00 (1/100 BPM resolution)

    Maximum Memory

    • 400,000 MIDI events or 300,000 audio events

    MIDI Tracks

    • 16 tracks plus the master track, 697 preset / 100 user patterns (per song), 18 preset/16 user template songs,

    Audio Tracks

    • 16-track playback, 4-track simultaneous recording, WAV file format 16bit/24bit
    • Maximum Single-file Recording Time (mono): 80 minutes
    • Automation: Volume, Pan, EQ, and Send1/2
    • 10,000 regions (max.)
    • Event Anchors, BPM Adjust

    Other Functions

    • RPPR (Realtime Pattern Play and Record): 1 Pattern set per song
    • Auto Song Setup function


    Disk Mode

    • Load, save, utility, data filer function (save/load MIDI System Exclusive data), CD-R/RW (UDF format read/write), ISO9660 Level 1.


    • Joystick, Switches 1 & 2
    • Arpeggiator Control: On/Off, Latch, Gate, Velocity, Length, Swing, Tempo
    • DRUM TRACK: On/Off, Swing, Drum SD, Tempo


    • TouchView graphical user interface, 7 inch color TFT, WVGA (800 x 480 dots), adjustable brightness

    Principal Specifications

    • Frequency Response: 20Hz-22kHz, +/-1.0dB, 10k Ω load
    • THD+N: 20Hz-22kHz, 0.01%, 10k Ω load (typical)
    • S/N: 95dB (typical)
    • Dynamic Range: 95dB (typical)
    • Crosstalk: 95dB, at 1kHz (typical)

    Outputs - L/MONO, R, Individual 1-4

    • 1/4” TRS Balanced
    • Output Impedance: 350 Ω Stereo; 175 Ω Mono (L/MONO Only),
    • Nominal Level: +4.0 dBu,
    • Maximum Level: +16.0 dBu (when load impedance is 600 Ω or greater)
    • MAIN VOLUME slider controls only AUDIO OUTPUT (MAIN) L/MONO and R

    Outputs - Headphones

    • 1/4” stereo phone jack
    • Output impedance: 33 Ω,
    • Maximum Level: 60+60 mW (when load impedance is 33 Ω),
    • MAIN VOLUME knob (link with AUDIO OUTPUT (MAIN))

    Outputs - USB-B

    • 24-bit, Sample Rate: 48 kHz, 2 channels
    • (Digital output of the same signals as AUDIO OUTPUT (MAIN) L/MONO and R)

    Inputs - Audio Inputs 1 and 2

    • 1/4” TRS Balanced
    • Input Impedance: 10 kΩ
    • Nominal Level: LINE +4 dBu
    • Maximum Level: LINE +16 dBu
    • Nominal Level: MIC –22 dBu
    • Maximum Level: MIC -10 dBu
    • Source Impedance: 600 Ω

    Inputs - USB-B

    • 24-bit, Sample Rate: 48 kHz, 2 channels

    Control Inputs

    • Damper pedal (half damper supported)
    • Assignable switch, Assignable pedal


    • In, Out, Thru

    USB A (TYPE A)

    • For connection to external USB devices (QWERTY keyboards, MIDI controllers, ethernet adaptors, and storage)

    USB B (TYPE B)

    • MIDI/audio interface, MIDI: 1 (16 channel) input / 1 (16 channel) output, Audio: 2 channel input / 2 channel output

    Disk Drives

    • 60 GB SSD (2.5”)

    Power Supply

    • AC power supply terminal, Power switch


    • 1,227 x 386 x 116 mm / 48.31” x 15.20” x 4.57”


    • 14.6 kg / 32.19 lbs.

    Power Consumption

    • 40 W


    • AC cord, Quick Start Guide
    Key Action
    Key Size
    Full Size
    Number of Keys
    CV Compatible
    Maximum Polyphony
    Trade Doubler Group ID
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    Customer Reviews


    1 reviews





    Trusted Customer8th Jun 2021

    Value 4Looks 4Sound 5

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