The Estelon XA is Alfred Vassilkov’s first contribution and realisation to the Estelon brand, and a redefined approach to loudspeaker design pioneered by Estelon. Five years of experimenting, re-imagining and breaking the standards set by the demanding and innovative industry led to a pure and unheard of listening experience that can be achieved even in challenging room acoustics.

Unbelievable sonic experience

The Estelon XA is a genuine musical instrument in its own right. One that when carefully integrated into system and room, is capable of connecting the listener to the music in a most profound way. It creates a beautiful musical landscape that impacts the audience emotionally upon each listening experience.

The most noticeable and important technological advancement is the design and the materials used in building the Estelon’s speaker cabinet. These are cast with the patented marble based composite and designed specifically to enhance the elements inside it, it is not simply an asthetic visual element, but one of the leading reasons why the sum of the speaker is bigger than the parts of it.


The 280 mm German made Accuton bass driver uses a special ultra stiff ceramic – sandwich dome. FEA optimized underhung motor design with 55 mm titanium voice coil guarantees very low energy storage and exceptional heat transfer.
The mid-bass unit is developed by Accuton. This is of a very sophisticated design with special attention paid to the titanium voice coil former and the surrounding air gap to provide maximum freedom from dynamic compression in conjunction with the use of a special ultra stiff ceramic dome. It is valued for its midrange neutrality, mated to its own acoustic enclosure. All moving elements of the driver are ventilated for resonance free response.

The 30 mm high frequency driver has ultra hard ceramic dome. Anti-resonant cutout fills in the ceramic dome provide for damping of the dome resonance. A neodymium overhung motor design with vented aluminum voice coil former guarantees low energy storage and excellent heat transfer. The soft fabric surround and ferrofluid with high viscosity center the moving parts with distinctive linearity.

The Preparation

Each drive unit is “broken in” by running a signal through them for several hours before selecting matching pairs of drivers for each speaker pair. When drivers in matching pairs, another ‘break in’ with a special signal is conducted. Finally, drivers are fitted into the finished cabinet for individual tuning. The components used were chosen through hundreds of listening tests based on subjective musicality – drivers, Teflon hybrid capacitors, inductors, Kubala-Sosna internal wiring etc.

All of the aforementioned is unified by Alfred’s custom crossover, that enables the symbiotic performance of the elements after they are carefully tested – the crossover with Teflon hybrid capacitors and air core inductors is incased in a separate chamber to protect the crossover components from microphonic effect.


  • Passive speaker


  • Woofer: 1×11″ Accuton, ceramic sandwich dome
  • Mid-Woofer: 7” Accuton, ceramic membrane
  • Tweeter: 1×1,2” Accuton, ceramic inverted dome

Internal Wiring:

  • Kubala-Sosna

Frequency Response:

  • 25-28 000 Hz

Power rating:

  • 200W

Nominal Impedance

  • 6 ohms (min 3,5 ohms at 60 Hz)


  • 89 dB/2,83 V

Minimal amplifier Power:

  • 20 W


  • Height: 1370 mm
  • Width: 450 mm
  • Depth: 640 mm
  • Net weight: 85 kg per piece
  • Shipping weight: 135 kg per piece


  • 2013 Best Performance Award (MyHiend, Taiwan)
  • 2012 Product of the Year (Audio Art, Taiwan)
  • 2012 Best Sound at Audio Show in Warsaw (High Fidelity, Poland)
  • 2011 CES Innovation Award (USA)