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Korg Electribe ESX1-SD

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The ideal tool for producing dance and many other types
of music

The ESX-1 provides nine drum parts and five
synth parts. Since song arrangement editing is unified
with the sound editing for each part, song production
is quick and easy.

“MMT (Multiple Modeling Technology)” tone generator

The synth engine of the ES1X-1 features Korg’s latest
technology — MMT (Multiple Modeling Technology).
This system builds on the know-how that
was developed for the DSP technology used in the
Z1, MS2000, and Electribe series to create a wide
range of timbral variations with a few simple operations.

The oscillator section provides a total of sixteen
different synthesis models that include not only
standard analog synthesizer models such as Waveform,
Sync, Cross Mod, and Ring Mod; but also new
types not previously available, such as a Chord type
that can produce a full chord from a single note, a
Unison type that lets you detune the pitch of up to
six oscillators to create an extremely thick sound,
and a Waveshape type that mixes two oscillators
and then modulates the result to generate complex

The carefully selected parameters of the filter and
modulation sections boast a greatly improved
range, speed, and sound quality. In addition to four
filter types that can dramatically vary the sound
generated from the oscillator, the new Drive control
can create the distinctive sound of analog distortion
for sharp and powerful analog synth
sounds. For totally far-out sounds, we’ve added
BPF+ (Band Pass Filter Plus) with adjustable peaking,
plus you can use other parameters in conjunction
with modulation from the LFO or EG.

207 drum waves for immediate use in your dance music

The ESX-1 features 207 built-in drum waves that
have been pre-processed to sound their best in your
music, immediately.

Analog synthesizer-style ease of editing

The front panel provides knobs and switches for
important sound parameters, allowing you to edit
sounds in realtime while you perform, and letting
you create sounds in the same way as on an analog

Three simultaneous stereo effects processors

The ESX-1 provides three stereo effect processors,
each featuring 16 cutting-edge effect types. You can
use the Chain function to modify the way in which
the effects are connected to each other.

192 internal patterns programmed for many genres of
dance music

The ESX-1 can hold 256 patterns in memory. Each
one lets you store a sound and sequence (of up to
128 steps) for each part. When shipped, 192 of the
internal patterns are pre-programmed specifically
for dance music and other modern music styles.
64 songs A sequence of patterns, mute data, and knob movements can be saved as a “song” in each of the 64
song memories.

Intuitive pattern programming

The sixteen step keys on the front panel allow you
to enter data into pattern quickly, easily and intuitively.Of course, you can also use realtime recording or step recording.
Motion sequencing

The ESX-1’s Motion Sequence feature lets you
record and loop knob movements and switch operations,
letting you create time-varying changes
in the tone during playback.

Newly-developed VALVE FORCE vacuum tube circuit

The ESX-1 features Korg’s newly-developed
VALVE FORCE technology, a completely analog
circuit that contains two actual vacuum tubes and
can be used as a mastering effect to enhance the
overall sound level. It delivers a rich, warm, and
clearly-defined sound that cannot be replicated by
digital technology alone. Use the TUBE GAIN knob
to adjust the level of the ESX-1’s output signal
being sent through the vacuum tubes, controlling
the smooth distortion and rich overtone structure
that vacuum tubes add to the sound. Even at lower
volume levels, you can adjust the TUBE GAIN to
enjoy great tube-quality sound in any situation.

Process external audio sources

You can connect an audio source to the audio in
jack, and process that sound using the internal filter
and on-board effects.

Two-channel individual output jacks

In addition to the L/MONO and R main stereo
audio outputs, you can route any combination of
parts to the two independent audio outputs.

Auto BPM detection

The ESX-1 can automatically detect the tempo of
an audio source connected to the audio in jack, and
apply that tempo to the current pattern. Of course,
you can also use tap tempo to input the tempo, or
synchronize to an external MIDI clock.

SmartMedia™ slot

Patterns and songs you create on the ESX-1 can be
saved on SmartMedia™.
Arpeggiator Use the ribbon controller and slider for intuitive and hands-on control of automatically generated arpeggios.


The large back-lit LCD keeps you informed of the
operating status and provides other information.

Pattern writing on-the fly

If you unexpectedly come up with a cool pattern
or riff while playing patterns, you can write and
save the pattern without stopping your performance.

Saving your data on the ESX-1

The patterns and songs you edit and create on the
ESX-1 will be lost (the patterns and songs will return
to their un-edited state) if you select a new
pattern or song, or turn off the power before saving
your changes. If you want to save a pattern or song that you created
or edited, or changes you made to global data,
you must perform the Write operation.
You can always restore all songs and patterns to
the factory settings if desired (☞p.89 “Restoring the
factory settings”).

About the vacuum tubes

Do not attempt to remove, replace or change the
tubes in the ESX-1. The tubes are not a user serviceable

What is ?

VALVE FORCE is KORG’s proprietary vacuum
tube audio technology. The VALVE FORCE system
provides the smooth distortion and rich
overtone structure that is uniquely characteristic
of analog tube circuitry. By providing the
tube circuit with its own gain control, the
VALVE FORCE system delivers excellent tonal
quality in any situation.

What is ? (Multi Modeling Technology)

KORG’s new cutting-edge MMT (Multi Modeling
Technology) engine is based on the vast
knowledge acquired from years of DSP development
— development that created the Prophecy,
Z1, MS2000, OASYS PCI and Electribe series.
This technology provides amazingly advanced
sound possibilities while maintaining the
simple operation that has been the hallmark of
the Electribe series.

Technical Specifications
Type: Digital
Synthesis: Sampling
Oscillators: 2
Osc Modulation: Envelope, Knob, LFO
Sampling: 44.1 kHz, Beat Slicing, Loop, One Shot (Phrase)
Evelope Paramerters: Attack, Decay, Sustain, Release
Types: Band Pass, Low Pass, Resonance
Filter Modulation: Envelope, Knob, LFO
Polyphony & Tuning
Polyphony: 16
Timbrality: 14
Tuning: Standard
Modes: Mono, Polyphonic
Patches RAM: 256
Storage: Internal, SD Card
Editing: MIDI
Arpeggiator with factory and user presets
Three processors x 16 types
Sequences: Maximum of 128 steps per part.
Motion sequences: Total of 24 freely assignable sequences totaling
Song: Maximum of 256 patterns per song.
Maximum 20,000 events for event recording.
Case: Desktop
Keyboard: Pads
Controls: Modulation - Audio Input, Buttons, Pads, Knobs, Mod - Ribbon, Tempo Knob, Velocity
Dimensions (WxDxH): 358 x 256 x 62
Weight: 3.1kg
Audio Output Connections: 1/4" Phone Jack, Mono Out, Stereo Main, Stereo Headphone
Audio Output Count: 4
Inputs: 1/4'
Power: 23w
Year Released: 2008
Year Discontinued: 2014
Manuals & Documents

Product Links
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MSRP List Price: $799 - convert
Retail Street Price: $499 - convert
Used Price: $200-$450 - convert

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