Estelon XB Mk II

Exceptional Performance for More Compact Environments

The Estelon XB Mk II delivers exceptional musical performance in a form perfectly suited to more compact listening spaces. Building on the impeccable audio reproduction of its predecessor, it combines refined acoustic engineering with elegant, sculptural design.

With an upgraded crossover network and refined internal cabling, the XB Mk II offers a precise, crystal-clear, and emotionally engaging listening experience across the full frequency range—bringing Estelon’s signature sound to smaller environments without compromise.

Design Philosophy: Loudspeaker and Room in Perfect Balance

At Estelon, every loudspeaker is designed with the understanding that sound does not exist in isolation. Walls, ceilings, floors, furniture, and décor all interact with music, shaping the final listening experience.

The XB Mk II is engineered to work with its environment, creating a natural, lifelike, and emotionally engaging soundstage rather than imposing its character on the room.

• Low frequencies, typically below 100 Hz, behave like atmospheric pressure and cannot be localised. Positioning the woofer close to the floor allows it to couple with the surface, improving efficiency and evenly distributing standing waves for accurate bass throughout the room.

• Above 100 Hz, sound becomes directional and more sensitive to reflections. The mid-woofer and tweeter are therefore positioned higher on the cabinet in a grouped alignment to reduce interference and maintain coherence.

• In all Estelon loudspeakers, the midrange driver is placed above the tweeter, further reducing colouration and improving upper bass and low midrange accuracy.

Advanced Cabinet Technology

The XB Mk II cabinet is constructed from Estelon’s proprietary marble-based composite material, formed using specialised moulding technology. The result is a dense, rigid, and acoustically inert structure with no parallel walls and an intricate internal system of curved surfaces and chambers.

Each driver is housed in an enclosure shaped specifically for its role. Internal bracing and carefully designed chamber geometry suppress standing waves and resonances, while the cabinet’s substantial mass provides stability during dynamic passages.

To achieve optimal clarity and tonal balance, Estelon uses a carefully calibrated blend of natural and synthetic damping materials. Their type, placement, and quantity are determined through extensive testing, calculations, and critical listening.

Precision Driver System by Accuton

The Estelon XB Mk II features three custom-designed drivers, developed in collaboration with Accuton and precisely matched for seamless integration:

• 220 mm ceramic sandwich woofer delivering deep, controlled, and distortion-free bass through a stiff, lightweight membrane and long linear excursion

• 158 mm ceramic mid-woofer offering a clean impulse response, extremely low harmonic and intermodulation distortion, and smooth frequency linearity

• 25 mm ceramic inverted-dome tweeter providing fast transient response, low distortion, and breakup modes pushed well beyond the audible range

Each driver operates within a chamber optimised for its performance. The woofer is housed in a rear-ported bass reflex enclosure, while the tweeter sits in an isolated chamber surrounded by carefully shaped curves that support even, controlled high-frequency dispersion.

Driver Positioning & Dispersion Control

All drivers are mounted on a curved front baffle, ensuring they are equidistant from the listening position. This geometry, combined with precision-tuned crossovers, ensures sound from each driver arrives simultaneously.

The result is accurate imaging, natural tonal balance, and a lifelike soundstage. The cabinet’s soft curves minimise diffraction, expanding the sweet spot and maintaining consistent performance across a wide listening area.

Precision Crossover Design

The XB Mk II employs a meticulously engineered crossover network designed for maximum signal purity and driver integration.

• Crossover points: 90 Hz and 2.2 kHz

• Third-order filters between the woofer and mid-woofer

• Second-order filters between the mid-woofer and tweeter

Premium components include custom transformer-core and OFC air-core inductors, Mundorf SESGO capacitors, and high-grade wire-wound resistors. All components are carefully matched, measured, and tested.

Each crossover is hand-soldered using point-to-point wiring and connected via Estelon’s flat foil direct coupling in a star-wired configuration to minimise signal path length and preserve clarity. Internal cabling is provided by Kubala-Sosna.

The crossover network is housed in its own isolated chamber, protecting it from vibration and microphonic effects. Every loudspeaker undergoes thorough measurement and critical listening tests before completion, ensuring consistent reference-level performance.