XB
Exceptional
performance
for more
compact
environments
The Estelon XB Mk II combines the impeccable audio reproduction of its predecessor with elegant, sculptural styling, perfectly suited for smaller listening spaces.
With an upgraded crossover network and refined cabling, the XB Mk II delivers a precise, crystal-clear, and emotionally captivating performance across the full frequency range.
Exceptional
performance
for more
compact
environments
The Estelon XB Mk II combines the impeccable audio reproduction of its predecessor with elegant, sculptural styling, perfectly suited for smaller listening spaces.
With an upgraded crossover network and refined cabling, the XB Mk II delivers a precise, crystal-clear, and emotionally captivating performance across the full frequency range.
Design Philosophy
At Estelon, our approach begins with the understanding that a loudspeaker must interact with the room itself. Every surface, from walls and ceilings to furniture and décor, plays a role in shaping the final listening experience. Our goal is to ensure that the loudspeaker works in synergy with its environment to deliver a lifelike and emotionally engaging sound.
At low frequencies, typically below 100 Hz, sound behaves like atmospheric pressure. In this range, it is not possible to localise the sound source. That is why the woofer in the XB Mk II is placed close to the floor, allowing it to couple with the surface and maximise output efficiency. This placement also helps evenly distribute standing waves, improving bass accuracy throughout the room.
Above 100 Hz, sound becomes directional and is affected by reflections. To manage this, we position the mid-woofer and tweeter higher in the cabinet. Their grouped alignment reduces interference from nearby surfaces and enhances coherence across the frequency range. In all Estelon speakers, the midrange driver is placed above the tweeter to minimise colouration and improve upper bass and low midrange performance.
Cabinet Technology
The XB Mk II cabinet is made using Estelon’s proprietary marble-based composite material. Formed with specialised moulding technology, it features no parallel walls and an intricate internal system of curved surfaces and chambers. This construction results in a dense, rigid, and resonance-free structure.
Each driver is housed in an enclosure shaped specifically for its role. Internal bracing and chamber geometry reduce standing waves and suppress resonances. The cabinet’s substantial mass also supports stable, dynamic driver performance.
To further support clarity and tonal balance, we use a blend of natural and synthetic dampening materials. Their type, placement, and amount are determined through testing, calculations, and listening evaluations.
Driver System
The XB Mk II includes three drivers custom-designed in collaboration with Accuton. One woofer, one mid-woofer, and one tweeter are precisely matched to perform together with exceptional accuracy.
The 220 mm ceramic sandwich woofer is capable of deep, controlled bass. With a stiff, lightweight membrane and long linear excursion, it delivers accurate low frequencies without distortion.
The 158 mm ceramic mid-woofer has a clean impulse response and extremely low harmonic and intermodulation distortion. It maintains a smooth, linear frequency response through careful damping and design refinements.
The 25 mm ceramic inverted dome tweeter offers fast transient response and low distortion. It pushes the first breakup modes well beyond the audible range, contributing to clarity and imaging precision.
Each driver operates in a chamber optimised for its performance. The woofer is placed in a bass reflex chamber with a rear port, while the tweeter is housed in an isolated enclosure surrounded by carefully shaped curves that support even high-frequency dispersion.
Driver Positioning and Dispersion Control
- All drivers are positioned on a curved front panel to ensure they are equidistant from the listener. This layout, combined with carefully tuned crossovers, ensures that sound from each driver arrives simultaneously. The result is precise imaging, natural tonal balance, and lifelike soundstaging.
- The cabinet’s soft curves reduce diffraction and maintain consistent performance across a wide listening area. This design expands the sweet spot and ensures a coherent sound regardless of seating position.
Crossover Design
The XB Mk II uses crossover components chosen for performance and synergy. These include custom transformer-core and OFC air-core inductors, Mundorf SESGO capacitors, and high-grade wire-wound resistors. Every part is carefully matched and tested.
All crossover components are hand-soldered with point-to-point techniques and connected using flat foil direct coupling in a star configuration. This approach minimises signal path length and ensures clean signal transfer. Internal cabling is provided by Kubala-Sosna.
The crossover filters are housed in their own isolated chamber to reduce vibration and microphonic effects. The filter slopes are third-order between the woofer and mid-woofer, and second-order between the mid-woofer and tweeter. The crossover points are set at 90 Hz and 2.2 kHz.
Each speaker is thoroughly tested for both measurements and critical listening before it is completed.
Technical
specifications
Mid-woofer: 158 mm ceramic membrane from Accuton
Tweeter: 25 mm ceramic inverted dome from Accuton
Width: 420 mm
Depth: 590 mm
Net weight: 69 kg per piece