1. Introduction
Welcome to the user manual for your ESI Xsynth. This document provides comprehensive instructions for setting up, operating, and maintaining your portable synthesizer. The Xsynth combines a virtual analog synthesizer with a master keyboard, MIDI interface, and audio interface, offering a versatile tool for music production and performance.
Please read this manual thoroughly to ensure proper use and to maximize the potential of your ESI Xsynth.
Figure 1.1: ESI Xsynth Overview. This image displays the top-down view of the ESI Xsynth, highlighting its compact design, the 25 touch-sensitive keys, and the layout of its control knobs and buttons.
2. Key Features
The ESI Xsynth is equipped with a range of features designed for comprehensive sound creation and control:
- Synthesizer Engine: Virtual analog subtractive synthesis based on sample ROM.
- Polyphony: Up to 10 voices.
- Sound Design: Features 3 oscillators, 3 LFOs, 3 AHDSR envelopes, 16 modulation matrix slots, 3 effect sections, and an EQ.
- Patch Memory: 512 sounds organized into 4 banks of 128 patches each.
- Keyboard: 25 touch-sensitive keys with full width and compact length, derived from the Xkey series.
- Performance Controls: Polyphonic Aftertouch, Arpeggiator, Glide, Octave Shift, and Hold Functions.
- Expressive Input: Pressure-sensitive modulation and pitchbend buttons.
- Connectivity: USB-C for power, audio, and MIDI; DIN MIDI input and output.
- Audio I/O: Dedicated 3.5 mm jacks for headphones, line-out, and aux-in.
- Audio Interface: Integrated 96kHz/24bit 2-in/2-out audio interface.
3. Setup Guide
3.1 Unpacking and Initial Inspection
Carefully remove the ESI Xsynth from its packaging. Inspect the unit for any signs of damage that may have occurred during transit. Retain the packaging for future transport or storage.
3.2 Powering the Xsynth
The ESI Xsynth is powered via its USB-C port. Connect the provided USB-C cable to the Xsynth's USB-C port and the other end to a compatible USB power adapter (not included) or a computer's USB port. The unit will power on automatically.
3.3 Connecting Audio and MIDI
The Xsynth offers various audio and MIDI connectivity options:
- USB-C: For combined power, audio, and MIDI communication with a computer.
- DIN MIDI In/Out: Use standard 5-pin MIDI cables to connect to external MIDI devices.
- Headphones (3.5mm): Connect stereo headphones for private monitoring.
- Line Out (3.5mm): Connect to an amplifier, mixer, or audio interface for stereo output.
- Aux In (3.5mm): Connect external audio sources to be processed or mixed with the Xsynth's output.
Figure 3.1: Rear Panel Connections. This image illustrates the rear panel of the ESI Xsynth, detailing the placement of the USB-C port, 3.5mm audio jacks (Aux In, Line Out, Phones), and the DIN MIDI In/Out ports.
4. Operating the Xsynth
4.1 Basic Controls and Navigation
The Xsynth features a streamlined interface for intuitive control. Key elements include:
- Knobs: Control various parameters such as oscillator settings, filter cutoff, and effect levels.
- Buttons: Used for patch selection, mode switching (e.g., OSC, ENV, LFO, MACRO, MIX, GLOBAL), and activating performance features.
- Display: A small screen provides visual feedback on current parameters and settings.
- Navigation Buttons: "PAGE", "ENTER", "GLOBAL", and "SELECT" buttons facilitate menu navigation and parameter adjustment.
Figure 4.1: Front Panel Controls. This image shows a close-up of the ESI Xsynth's keyboard and the main control area, including the display, knobs, and function buttons.
4.2 Synthesizer Parameters
The Xsynth's virtual analog engine allows for extensive sound shaping:
- Oscillators (OSC): Adjust waveform, pitch, and other characteristics of the 3 oscillators.
- Envelopes (ENV): Shape the amplitude, filter, or pitch over time using the 3 AHDSR envelopes.
- LFOs: Modulate parameters with the 3 Low-Frequency Oscillators.
- Modulation Matrix: Utilize the 16 mod matrix slots to assign modulation sources to destinations.
- Effects (FX): Apply built-in effects and adjust their parameters.
- EQ: Fine-tune the tonal balance of your sounds.
4.3 Keyboard and Performance Features
The 25 touch-sensitive keys provide a responsive playing experience. Enhance your performance with:
- Polyphonic Aftertouch: Apply pressure to individual keys after striking them to modulate sound.
- Arpeggiator: Create rhythmic patterns from held notes.
- Glide: Smoothly transition between notes.
- Octave Shift: Transpose the keyboard range up or down.
- Hold: Sustain notes without continuously holding down keys.
- Modulation and Pitchbend Buttons: Pressure-sensitive buttons for expressive control over pitch and other parameters.
5. Maintenance
To ensure the longevity and optimal performance of your ESI Xsynth, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe down the unit. For stubborn dirt, slightly dampen the cloth with water. Avoid abrasive cleaners or solvents.
- Storage: Store the Xsynth in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Handling: Avoid dropping the unit or subjecting it to strong impacts. Do not place heavy objects on top of the Xsynth.
- Connectivity: Always handle cables by their connectors, not by the cable itself, to prevent damage to the ports and cables.
6. Troubleshooting
If you encounter issues with your ESI Xsynth, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | USB-C cable not connected properly or power source issue. | Ensure the USB-C cable is securely connected to both the Xsynth and the power source. Try a different USB port or power adapter. |
| No sound output | Volume too low, incorrect audio output selected, or cable issue. | Check the master volume on the Xsynth. Ensure your headphones or speakers are connected to the correct output (Line Out/Phones) and are powered on. Verify audio settings on your computer if using USB audio. |
| MIDI not working | Incorrect MIDI connections or software settings. | Verify DIN MIDI cables are connected correctly (Out to In, In to Out). Check MIDI settings in your DAW or external MIDI device. Ensure USB MIDI drivers are installed if required (usually class-compliant). |
| Keys not responding | Unit frozen or internal issue. | Try power cycling the unit (unplug and replug USB-C). If the issue persists, contact customer support. |
If the problem persists after attempting these solutions, please contact ESI customer support for further assistance.
7. Technical Specifications
| Feature | Detail |
|---|---|
| Model Name | Xsynth |
| Brand | ESI |
| Synthesizer Type | Virtual Analog Subtractive Synthesis (sample ROM based) |
| Polyphony | Up to 10 voices |
| Oscillators | 3 |
| LFOs | 3 |
| Envelopes | 3 AHDSR |
| Modulation Matrix Slots | 16 |
| Effect Sections | 3, plus EQ |
| Patch Memory | 512 sounds (4 banks of 128 patches) |
| Keyboard | 25 touch-sensitive keys (Xkey series derived) |
| Performance Features | Polyphonic Aftertouch, Arpeggiator, Glide, Octave Shift, Hold Functions, Pressure-sensitive Mod/Pitchbend buttons |
| Connectivity | USB-C (power, audio, MIDI), DIN MIDI In/Out |
| Audio I/O | 3.5mm Headphones, 3.5mm Line-Out, 3.5mm Aux-In |
| Audio Interface | 96kHz/24bit 2-in/2-out |
| Item Weight | 990 g |
| Product Dimensions (L x W x H) | 43 x 17.1 x 3.6 cm |
| Material | Wood |
| Color | Multicoloured |
8. Warranty and Support
For information regarding warranty coverage, product registration, or technical support, please refer to the official ESI website or contact your local distributor. Keep your proof of purchase for warranty claims.
Online Resources: Visit the official ESI website for the latest drivers, firmware updates, FAQs, and additional support documentation.
Contact Support: If you require further assistance, please reach out to ESI customer service through the contact information provided on their official website.
