Estelon Extreme Speakers

Sale price$349,999.00

Colour: Midnight Opera

Estelon Extreme Speakers

Emotionally immersive sound, groundbreaking engineering, and sculptural design in a fully adjustable high-end loudspeaker.

By elevating the act of listening to new heights, Estelon delivers an audio experience like no other. At the forefront of this sound revolution is the signature speaker – Extreme. The system comprises an upper and a lower module, with the former fully adjustable to best suit a room’s acoustic attributes and the listener’s personal preferences.

With its soaring, handcrafted cabinet and sleek two-tone finish, the speaker system is a statement piece, but one that doesn’t need to shout about its achievements. Indeed, the Extreme has been designed to perform a smart disappearing act when in use: instead of having your ear drawn to the speaker, the listener is immersed in sound, experiencing music afresh in all of its nuanced splendour.
  • Height-Adjustable Architecture: 
Upper module moves 300 mm for ideal soundstage alignment
  • Diamond Tweeter & Accuton Drivers: 
World-class CELL technology drivers with extreme precision
  • Symmetric Driver Loading (SDL): 
Controlled, phase-accurate, room-filling bass
  • Room-Aware Design: 
Engineered for seamless integration 
with complex acoustic spaces
  • Sculptural Cabinet: 
Non-box, curved shape eliminates 
resonance and internal reflections
  • Remote-Controlled Adjustments: 
User-tuned sound optimization with effortless control
  • Crafted from a proprietary marble-based composite — 
dense, resonance-free, and acoustically ideal
  • Curved, seamless cabinet with no parallel 
walls for pure sound reproduction
  • Weighing 250 kg, each unit delivers stability 
for both subtle micro-details and dynamic bursts
  • Available in gloss, matte, and fully customized finishes
  • Hand-polished over several weeks using a 12-layer paint process

Room Integration & Soundstage Optimization
Woofers positioned near the floor to enhance 
low-frequency response and reduce standing waves.
Midrange and tweeter drivers are elevated for improved imaging and spatial clarity.
Drivers mounted on a curved front panel 
to preserve time alignment and dispersion accuracy.

Cabinet Design & Internal Chambers
Separate internal enclosures for each 
driver eliminate interference.
Advanced dampening materials and chamber 
shapes prevent resonances and unwanted coloration.

Tweeter Adjustment & Precision
Motorized camshaft system allows 5-step 
depth tuning of the diamond tweeter.
Curved baffle and suede-covered foam 
ring reduce cabinet diffraction and enhance imaging.

Bass Reflex & SDL Technology
Rear bass reflex tunnel with internal 
dampening minimizes turbulence.
Dual 11″ woofers operate symmetrically 
for clean, distortion-free bass output.

Upper Module Height Adjustment
Remote-controlled upper module moves up to 300 mm for precise room adaptation.
Linear actuator ensures exact, repeatable positioning with built-in safety.

Carefully matched driver array by Accuton
2 × 250 mm (11″) CELL aluminium sandwich woofers (custom design by Accuton)
1 × 250 mm (11″) CELL aluminium sandwich mid-woofer (custom design by Accuton)
1 × 168 mm (7″) CELL ceramic membrane midrange (Accuton)
1 × 25 mm (1″) CELL diamond tweeter (Accuton)
These drivers work together to deliver coherent sound staging, realistic dynamics, and effortless musical flow.

Crossovers & Signal Purity

At the heart of the Extreme Mk II’s seamless performance lies a crossover network crafted with the utmost precision. Each filter is meticulously designed to integrate the drivers in both time and frequency domains, preserving the speaker’s tonal integrity and dynamic agility.

To achieve this, Estelon use only the highest-grade components: SESGO capacitors, precision thick-foil and Supreme resistors, Mundorf inductors, and Goertz flat foil coils, among others. Each part is carefully selected and paired through rigorous measurement and listening, ensuring minimal loss and maximum synergy.

The crossover circuits are housed in isolated chambers within the cabinet, protecting them from vibrations and microphonic effects. Estelon also employ a proprietary flat foil direct coupling technique. This innovative design routes the signal through a central conductor — a star-grounded layout optimised to preserve signal integrity from crossover to driver terminals.

Each component is hand-soldered using premium solder, with the shortest possible cable runs throughout. This obsessive attention to detail allows the Extreme Mk II to deliver unparalleled resolution, timing, and control — ensuring that what reaches your ears is as pure as the original performance.

Specification

Type  Passive speaker
Drivers  Woofer: 2×250 mm Aluminium dome, Mid-Woofer: 250 mm Aluminium dome, Midrange: 173 mm Ceramic inverted dome, Tweeter: 30 mm Diamond inverted dome
Frequency Response  20-45 000 Hz
Power Rating  500 W
Nominal Impedance  4 ohms
Sensitivity  91 dB / 2,83 V
Minimal Amplifier Power  20 W
Material  Marble based composite
Dimensions  Height: 1770 mm – 2070 mm / adjustable, Width: 690 mm, Depth: 820 mm, Net weight: 250 kg per piece
Recommended Room Size  50-200 m²