XILS-lab SynX 2 [WiN]

• Product: SynX 2
• Publisher: XILS-lab
• Version: 2.6.2
• Source: xils-lab.com/store/synx

SynX 2 stands as one of the most sophisticated virtual analog synthesizers available, delivering authentic Synthex character within a powerful modern framework. Its 8-layer architecture, advanced modulation system, and zero-delay feedback filters justify the price for serious synthesists seeking both vintage authenticity and contemporary sound design capabilities.

The Italian Legend Reimagined: A Hands-On Review of XILS-lab SynX 2

As a longtime synthesist, there are certain holy grail instruments that I’ve always dreamed of using. The original Elka Synthex from 1982 is one of them—a rare Italian analog polysynth with a legendary, punchy sound. The challenge for any software emulation is not just to clone the sound, but to capture its soul while making it relevant for modern production. This is the ambitious goal of XILS-lab’s SynX 2.

My goal here is to give you my honest, first-hand account of this powerhouse synth and help you understand if it truly delivers both vintage authenticity and contemporary sound design flexibility.

Key Takeaway

XILS-lab SynX 2 is a stunningly sophisticated virtual analog synthesizer that masterfully captures the authentic character of the rare Elka Synthex within a powerful, modern 8-layer multitimbral architecture. Its advanced modulation system, zero-delay feedback filters, and deep sound design capabilities make it an essential tool for serious synthesists and electronic producers.

What’s Inside This Powerhouse Synth

SynX 2 is a flagship instrument, and it’s packed with features that go far beyond a simple emulation.

• 8-Layer Multitimbral Architecture: This is the core of SynX 2. You get what feels like eight independent synthesizers in one, supporting up to 16 oscillators, 8 zero-delay feedback filters, and 32 D-ADSR envelopes. This allows for incredibly complex splits, stacks, and multitimbral setups.
• Advanced Modulation: The modulation system is one of the deepest I’ve ever used. It features 132 modulation destinations, along with unique ChaoX (chaotic 2D) and Rhythm LFOs for creating complex, evolving textures that are impossible on simpler synths.
• Zero-Delay Feedback (0DF) Filter: The filter is a faithful model of the CEM 3320 chip from the original Synthex. It includes 6 filter types and is capable of self-oscillation, delivering that authentic analog character and a beautifully smooth response, especially in the 6dB bandpass mode.
• 300+ Factory Presets: A solid library of presets with both Easy and Advanced programming modes to get you started.
• Modern Compatibility: As of version 2.6.2 (released in September 2025), SynX 2 now includes native Apple Silicon support.

In the Studio: Sound and Workflow

From the moment I started exploring the patches, the authentic Synthex character was undeniable. The DCO-style oscillators have that classic punch, and the zero-delay feedback filter is wonderfully musical.

The 8-layer architecture is where SynX 2 truly becomes a sound designer’s dream. I was able to assign different layers to specific MIDI channels and key ranges, creating complex keyboard splits for live performance and lush, stacked pads for studio production. The Guitar Mode, which assigns two voices per MIDI channel, is a unique feature that I found useful for creating expressive, multi-timbral guitar-like parts and even complex drum kits.

The workflow is divided into Easy and Advanced modes. Easy Mode provides a streamlined interface that gives you access to the core sound-shaping parameters, while Advanced Mode opens up the full architecture for deep, surgical sound design. While the interface can feel overwhelming in Advanced Mode, this flexibility is a huge plus.

How It Compares: SynX 2 vs. The Competition

Feature	SynX 2	Diva (U-He)	Repro-5 (U-He)
Layers/Multitimbral	8 layers	Single layer	Single layer
Oscillators (max)	16 (2 per layer)	2-4 (depending on model)	2
Filter Types	6 (CEM 3320 modeled)	Multiple vintage models	Moog ladder
Modulation Destinations	132	Varies by model	Limited
Unique Features	ChaoX, Rhythm LFO, 0DF	Circuit modeling accuracy	Prophet-5 authenticity
CPU Usage	Moderate-high	High	Low-moderate
Price (EUR)	€169	€179	€99

My Honest Look: Pros and Cons

Pros	Cons
Exceptional 8-layer multilayer architecture.	The interface can feel overwhelming for beginners in Advanced mode.
Authentic Synthex character with modern enhancements.	High CPU usage when using all 8 layers with complex patches.
Advanced modulation including unique ChaoX and Rhythm LFOs.	Limited to 16-voice polyphony, which is shared across all layers.
Zero-delay feedback filters deliver a true analog response.	There’s a steep learning curve to master all of its features.
Guitar Mode and extensive MIDI channel assignment for complex setups.	No built-in arpeggiator in some layers.

My Recommendation: Who Should Buy This Product?

SynX 2 is a deep and powerful instrument for serious synthesists. I would highly recommend it for:

• Sound Designers seeking complex, evolving textures through its multilayer synthesis and advanced modulation.
• Electronic Producers who want that authentic 80s analog character but with the flexibility of a modern plugin.
• Keyboardists who need sophisticated multitimbral splits and layers for live performance.
• Synthex Enthusiasts who want access to the sound of this rare Italian analog legend without tracking down the expensive hardware.

Frequently Asked Questions (FAQ)

Final Verdict

XILS-lab SynX 2 is, without a doubt, one of the most sophisticated and best-sounding virtual analog synthesizers I have ever used. It successfully delivers the authentic character of the legendary Elka Synthex and elevates it with a modern, powerful framework that is a sound designer’s dream.

While the high CPU usage on complex patches and the steep learning curve are factors to consider, the sheer sonic potential of its 8-layer architecture, advanced modulation, and stunning zero-delay feedback filters more than justifies the price. For any serious synthesist looking for both vintage authenticity and contemporary sound design power, SynX 2 is an essential instrument.