High-End Hi-Fi

Purposeful design. Remarkable sound.

A NEW APPROACH TO STEREO REPRODUCTION.

Combining advanced digital processing, precision conversion and handcrafted loudspeaker technology, the One-Box Stereo System delivers an exceptionally spacious and natural listening experience. Developed jointly by Weiss Engineering, PSI Audio and Illusonic, it combines decades of expertise in digital audio, active loudspeaker design and spatial sound reproduction.

ONE-BOX Stereo System 4

The “Sweet Spot” offers the ultimate sound experience.
A journey into another dimension. Boris Blank – Yello

ONE-BOX Stereo System

LIVE AT HOME.

Music with the ONE-BOX Stereo System feels live – spacious, authentic, detailed.
Its soundstage extends far
beyond its form – unexpectedly large and full of presence.

Designed to fit.

ONE-BOX Stereo System
adapts to any environment.
Custom finishes and two dedicated furniture options
let it blend seamlessly into your interior –
refined, flexible, unmistakably yours.

TUNED FOR YOU.

ONE-BOX Stereo System can be measured and calibrated in its listening environment.
A custom EQ and additional DSP tools allow the sound to be refined to your room and preference.

High-End Hi-Fi

Main Features

ONE-BOX Stereo system

A NEW APPROACH
TO STEREO REPRODUCTION

The system employs advanced spatial
audio processing to overcome the limitations traditionally associated with single-enclosure playback.

The result is a remarkably spacious and natural stereo image that extends far beyond the physical boundaries of the system.

ACTIVE THREE-WAY DESIGN

Dedicated amplification and active crossover technology provide precise control over every driver.

This approach ensures exceptional clarity, consistency and accuracy throughout the entire frequency range.

WEISS DIGITAL CORE

Advanced digital signal processing and reference-grade D/A conversion form the heart of the system.

Every stage is optimized to preserve the integrity of the original recording and deliver uncompromising sound quality.

HIGH CONNECTIVITY

A comprehensive selection of digital, analog and network connections enables seamless integration with modern audio and video sources.

Whether streaming music, connecting a television or integrating external components, the system adapts effortlessly.

ROOM OPTIMIZATION

Every listening environment is unique. Measurement-based calibration, equalization and advanced DSP tools allow the system to be optimized for both the room and the listener’s preferences.

CUSTOM INTEGRATION

Available with custom finishes and dedicated furniture solutions, the system is designed to become a natural part of the living space. 

Its appearance can be tailored to complement a wide range of interiors while maintaining a distinctive identity.

High-End Hi-Fi

Technical Data

ONE-BOX Stereo System

Inputs

Digital

  • AES/EBU or S/PDIF via XLR, 2 Toslink and RCA sockets.
  • UPnP/DLNA
  • USB.
  • Qobuz Connect.
  • Roon Ready.

Accepted formats: PCM 44.1kHz up to 384 kHz, DSD 64x / 128x.

Future formats can be accommodated via software updates.

Analog

XLR and RCA Sockets

Outputs

One Box

Stereo 3-way analog outputs to the amplifiers/loudspeakers

Digital

Two stereo AES/EBU outputs via XLR

Analog

Stereo analog output via XLR and RCA for multi-room setups or additional devices such as subwoofers, preamplifiers, active speakers, or headphone amplifiers

Digital Signal Processing

Source-specific algorithms

  • De-esser for reducing sibilance Creative equalizer (tone shaping)
  • Vinyl emulation
  • Loudness equalizer for balanced sound at low listening levels
  • Dynamic adjustment for consistent volume across playlists

Output-specific algorithms

  • Room equalizer
  • Crosstalk-cancelling algorithm
Dimensions

The ONE-BOX Audio System can be installed in various ways, such as:
On a sideboard Inside a sideboard Below a TV — the screen can be placed directly above the unit With one of our furniture options:
LIVEBASE Adjustable Dimensions: L 159 cm × W 50 cm Footprint with customizable height
LIVEBASE Classic Dimensions: L 159 cm × W 50 cm Footprint with customizable height
ONE-BOX Dimensions: L 150 cm × W 43.5 cm × H 22 cm

Power Supply

Power via IEC mains connector Mains voltage is detected automatically and the supply switches accordingly

Front Panel Controls
  • Infrared remote for power, volume, input/output selection, and signal-processing presets
  • Web-browser control for detailed configuration
  • Gesture sensor for mute/unmute and power control

A large 4-digit dot-matrix display shows essential information, including volume, mute status, and input source.

Note: For more detailed product specifications, please refer to the White Paper.

White Paper

Press Reviews

What the media say

AREA DVD
AREA DVD

AREA DVD

ONE-BOX Stereo System

30.000 EUR sind schon ein Wort. Im Gegenzug erhält man aber ein wahres Wunder der Akustik. Schon viele Hersteller haben wortreich versichtert, dass es gelungen wäre, die Qualität eines kompletten HiFi-Systems auf das Format einer Soundbar zu schrumpfen…

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Product Downloads

For your ONE-BOX Stereo System

ONE-BOX Stereo System Images
  • 06/2026
  • zip
  • 51.5 MB
ONE-BOX Stereo System White Paper
  • 06/2026
  • pdf
  • 4.3 MB