- Тype: Synth
- Sound Engine: Virtual Analog
- Number of Keys: 25
- Keyboard Type: Polyphonic Aftertouch, Velocity-Sensitive
- Polyphony: Yes
ESI Xsynth Synthesizer
Xsynth is a portable, compact synthesizer featuring a 25-key keyboard and integrated audio interface. Based on virtual analog subtractive synthesis with a Sample ROM foundation, it delivers professional-grade sound design capabilities, advanced modulation, and deep software integration – ideal for mobile production, idea sketching, and DAW-based workflows.
Key Features
Virtual analog subtractive synthesis
25 full-size keys with polyphonic aftertouch
3 oscillators, 3 AHDSR envelopes, 3 tempo-synced LFOs
16-slot modulation matrix
Built-in effects: reverb, chorus, delay, distortion, lo-fi, EQ
Arpeggiator, Glide, Hold functions
Programmable encoders, ergonomic layout
OLED display with real-time oscilloscope
Sound Engine & Presets
Up to 10-voice polyphony
Sample-based oscillators with unison, hard sync, and FM
512 preset slots (4 banks of 128)
PatchVol for per-patch volume control
Audio Interface & I/O
Integrated class-compliant audio interface (24bit / 96kHz)
USB-C for power, audio, and MIDI
MIDI In/Out via 3.5mm TRS-A jacks
Outputs: headphone out and line out (3.5mm TRS)
Input: Aux In (3.5mm TRS)
Software Integration
Fully compatible with macOS, Windows, and iOS
Driverless operation (class-compliant)
Included software:
Bitwig Studio 8-Track
Cubasis LE
WaveLab LE
USB-C cable, printed voucher, and manual
Build & Design
All-aluminum chassis in sleek silver finish
Ultra-slim profile: only 2.7 cm tall
Dimensions: 38.2 × 13.5 × 2.7 cm
Weight: 0.634 kg
Bus-powered via USB – no power adapter required
Xsynth combines expressive playability, versatile sound shaping, and seamless integration for any music setup – from home studios to on-the-go sessions.

Number of Keys: 25
This instrument has 25 keys, equivalent to 2 octaves, providing a wide range of tones for a variety of musical applications.

Keyboard Type
- Polyphonic Aftertouch
- Velocity-Sensitive

Aftertouch: Yes
Aftertouch technology on the keys allows musicians to add a new level of expression to their playing. When a key reaches the bottom of its stroke, the pressure exerted on the key can continue to be sensed and used to control various aspects of the sound, such as vibrato, volume, or tone modulation.

Polyphony: Yes
The polyphony of this instrument allows up to <%=tp_value % notes to be played simultaneously, providing rich and complex musical possibilities.
LFO: 3
An LFO, or low frequency oscillator, brings electronic sound to life. It adds movement and interest to synthetic sounds and effects, playing an important role in both subtle synthesis and bold sound design. However, you won't hear the LFO itself because it acts as a modulator. This means that it does not directly affect the audio signal, but adjusts other parameters such as oscillator pitch and filter clipping.
Pitch Bend: Yes
The Pitch Bend allows smooth pitch changes, adding expressiveness to musical expression. Often used to create effects such as glissando or vibrato, this feature allows the player to make subtle or dramatic changes to the sound in real time. Pitch bend allows musicians to create smooth transitions between notes, increasing the dynamics and expressiveness of their performances.
Modulation: Yes
Modulation allows you to change different aspects of the sound in real time, opening up a wide range of creative possibilities. For example, it can affect the pitch of the sound, creating a vibrato effect, or it can change the amplitude of the signal, creating a tremolo effect. It can also adjust filtering to create smooth transitions between frequency bands and dynamic textures. Modulation can also be used to change the character of the sound depending on the time or intensity of playing, giving the sound a lively and moving character.
Arpeggiator: Yes
The Arpeggiator transforms chords into sequences of individual notes played in various rhythmic and melodic patterns. Instead of playing the chords as a harmonic whole, the Arpeggiator breaks the chords into individual notes and plays them sequentially according to the selected algorithm.
Effect Types
- EQ
- Distortion
- Chorus
- Flanger
- Reverb
Headphone Output: Yes
The headphone output allows direct connection of headphones for private listening. This output provides a convenient way to enjoy the sound without disturbing others or ambient noise.
Outputs
- 3,5mm stereo Jack
- MIDI OUT Jack 3,5mm
MIDI Interface: Yes
It supports MIDI, allowing you to connect and communicate with other MIDI-compatible devices. This feature extends control and integration into the larger music environment, increasing flexibility and creativity in music creation.
Package Contents
- Software
- USB-C Cable
Тype
Synth
Aftertouch
LFO
Envelope
3
Modulation
Arpeggiator
Effect Types
EQ, Distortion, Reverb, Chorus, Flanger
Number of Presets
MIDI Interface
Bluetooth
Built-in Speaker
Software
Sound Engine
Number of Keys
Keyboard Type
Polyphonic Aftertouch, Velocity-Sensitive
Key Size
Full Size
Polyphony
Pitch Bend
Yes
Display
Display Type
Colour
Headphone Output
Inputs
Outputs
Analogue Outputs
USB
Package Contents
Width (cm)
38,2
Height (cm)
2,7
Depth (cm)
13,5
Weight
0,6 kg
Made in
China
Documents
Safety instructions
Please refer to the user manual for the specific safety instructions for this product.