Astell&Kern X Ultrasone Virtuoso

The VIRTUOSO represents the next evolution of the ULTRASONE Signature line—a flagship closed-back headphone born from the collaboration between ULTRASONE and Astell\&Kern.

Mastering Sound, Perfecting Performance

Precision-engineered and handcrafted in Germany, the VIRTUOSO combines state-of-the-art technology, luxurious materials, and refined design for a listening experience that redefines high-fidelity.

S-Logic®3 – Natural Spatial Listening Redefined

ULTRASONE’s proprietary S-Logic®3 technology creates a spatial listening experience that closely mimics professional studio monitors. Instead of directing sound straight into the ear canal, S-Logic®3 reflects sound over the outer ear, enabling a more immersive, three-dimensional soundstage.

• Up to 40% SPL reduction for the same perceived volume
• Significantly reduces listener fatigue during long sessions
• Creates a wide, deep and naturally layered soundstage
• Developed from over 30 years of R\&D in acoustic engineering

DDF – Double Deflector Fin Technology

DDF is ULTRASONE’s acoustic enhancement system that refines spatial depth and detail by partially masking lower midrange frequencies while preserving the directional cues in the midrange spectrum.

• Enhances spatial accuracy and detail retrieval
• Creates a multi-layered sound field with improved separation
• Synergizes with S-Logic®3 for a more immersive presentation
• Particularly effective in reproducing complex musical passages

Titanium-Plated 40mm Driver – Balanced Power and Precision

At the heart of the VIRTUOSO lies a titanium-coated 40mm Mylar driver, inherited from ULTRASONE’s prestigious Edition series. This driver is meticulously tuned to deliver a rich, balanced response across the entire frequency range.

• Deep, controlled bass response
• Clean, articulate mids
• Airy, extended highs
• Low distortion and fast transient response
• Optimized for high-resolution listening and professional monitoring

ULE – Ultra Low Emission Technology for Safer Listening

ULTRASONE’s ULE technology drastically reduces electromagnetic radiation emitted by the headphone drivers using advanced MU Metal shielding.

• Reduces EMF radiation by up to 98%
• Minimizes prolonged exposure to low-frequency magnetic fields
• Ensures safer, more comfortable long-term listening
• Features improved shielding with thinner layers and larger coverage

Balanced Connectivity – Audiophile-Grade Signal Chain

The VIRTUOSO is internally re-engineered to support true balanced 4-pole operation, allowing full compatibility with modern balanced audio sources.

• Comes standard with a 4.4mm balanced cable
• Enhanced channel separation and lower noise floor
• Greater dynamic range and control
• Premium dual-core Litz construction:
• Silver-plated OFC + 5N OCC copper
• Kevlar-reinforced for durability
• LumiFlex™ insulation for lower impedance and higher sensitivity
• Cable diameter: 4.40mm, Length: ~130cm

Ergonomic FGC Design & Alcantara Comfort

Designed for long-term wear, the VIRTUOSO integrates FGC (Floating Geometry Comfort), which includes a center-channel depression in the headband to reduce pressure buildup on the crown of the head.

• Reduces hot spots and discomfort during extended sessions
• Soft, breathable Alcantara padding on both headband and ear cushions
• Superior fit and reduced fatigue for professional use
• Stylish and practical—luxury meets function

Crafted in Germany – Built with Precision and Pride

Each VIRTUOSO headphone is handcrafted by skilled technicians at Gut Raucherberg, ULTRASONE’s Bavarian headquarters. Every component is rigorously tested to ensure the highest standards of quality, durability, and performance.

• Precision German manufacturing
• Individually tested and assembled
• Handcrafted using premium-grade materials
• A true reflection of artisanal audio craftsmanship

Design Concept – Artistry Meets Engineering

The VIRTUOSO design is the visual result of the collaboration between ULTRASONE and Astell\&Kern, reflected in the flowing X-shaped silhouette. The soft curves and refined textures align with Astell\&Kern’s design language while highlighting ULTRASONE’s engineering expertise.

• Symbolic X-motif representing synergy and mastery
• Clean, modern lines and high-end finish
• A design as expressive and balanced as the sound it delivers
• Form follows function—elegance meets performance

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Technical Highlights

Feature	Specification
Driver	40mm Titanium-plated Mylar diaphragm
Driver Type	Closed-back, Dynamic
Acoustic Technologies	S-Logic®3, DDF, ULE
Cable	1.4m 4.4mm Balanced
Cable Structure	Dual-core Litz: Silver-plated OFC + 5N OCC
Materials	Alcantara, TPE, LumiFlex™, Kevlar reinforced
Assembly	Handcrafted in Germany