Estelon X Diamond Mk II Speakers

The X Diamond Mk II is the closest alternative to the Extreme Mk II in smaller listening spaces.

It combines Estelon’s hallmark sound and design, featuring a 1” diamond tweeter, refined cabling, and a top-tier crossover for extended, resonant-free high frequencies.

With its transparency, precision, and exceptional detail, the X Diamond Mk II delivers an intensely pure and immersive listening experience.

At Estelon, every loudspeaker is shaped by the space it lives in. The design philosophy considers not just the loudspeaker, but the entire room, including floors, walls, ceilings, and furniture. These elements all interact with sound and influence how music is experienced.

Estelon's goal is to create a natural, emotionally engaging listening environment where music feels alive and unfiltered.

For low frequencies, sound behaves like a pressure wave, filling the space rather than traveling in a specific direction. That is why they place the woofer near the floor, helping it couple with the surface and distribute bass more evenly.

For higher frequencies, the mid-woofer and tweeter are positioned higher on the cabinet in close vertical alignment, reducing reflections and delivering a stable, focused soundstage.

The X Diamond Mk II uses a cabinet design unlike traditional speaker enclosures, with no flat or parallel surfaces. Built from Estelon’s proprietary marble-based composite, the cabinet is rigid, dense, and acoustically inert.

Each driver sits within a specially shaped internal chamber that supports its performance, while the cabinet’s weight contributes to stability and resonance control.

Internal dampening uses a precise mix of natural and synthetic materials, placed based on measurements and listening tests for tonal balance and detail.

The X Diamond Mk II features three drivers, all custom-designed with Accuton: one woofer, one mid-woofer, and one tweeter.

280 mm ceramic sandwich woofer for deep, controlled bass.

173 mm ceramic mid-woofer for fast transients and clean midrange.

25 mm diamond tweeter for exceptional detail, realism, and spatial cues.

Each driver is housed in its own chamber: the woofer in a bass reflex chamber, the tweeter in an isolated chamber shaped for wide dispersion.

Driver Positioning and Cabinet Geometry
The drivers are placed on a curved front baffle to ensure they are equidistant from the listener. This geometry, combined with precision-tuned crossovers, ensures simultaneous sound arrival, accurate imaging, and perfect tonal balance.

The X Diamond Mk II uses a second-order crossover network, with crossover points at 77 Hz and 2 kHz.

Components include Mundorf and Jantzen capacitors, Goertz and Mundorf inductors, and all are hand-soldered in a star-wired configuration using Estelon’s flat foil direct coupling.

Internal cabling is by Kubala-Sosna, ensuring uncompromised signal clarity.

Every X Diamond Mk II is hand-finished over several weeks using a twelve-layer painting, wet sanding, and polishing process.

Custom finishes are available upon request.