Sonja™ is YG Acoustics™’ flagship, and represents everything that we know about speaker-design. Driven by innovative applications of acoustical engineering and world-class precision-manufacturing, Sonja™ pushes the edge of the art. Marrying these elements with stunning industrial design, results in a loudspeaker which is transformative in both performance and sheer visual beauty. Sonja™ – unparalleled sonics, timelessly elegant form, pure seduction… handmade in U.S.A.

Innovations include, first and foremost, breakthrough drivers machined in-house, and proprietary toroidal air-core crossover inductors. These enhancements result in ultra-low distortion, while preserving the industry-leading frequency and phase response that YG Acoustics™ is famous for.

The bass and midrange units are made in-house using YG Acoustics™’ proprietary BilletCore™technology: the drivers are precisely machined out of massive slabs of aircraft-grade aluminum. This unique process offers overwhelmingly superior dynamics, musical delicacy and low distortion due to industry-leading rigidity and accuracy (tight tolerances).

The tweeter incorporates YG Acoustics™’ ingenious ForgeCore™ system: in-house CNC-cutting introduces sophisticated 3D geometries into the motor system. The resulting improvement is greatly reduced distortion and a sense of ease to the sound.

YG Acoustics™ crossover circuits are all created using proprietary software developed entirely in-house. DualCoherent™ technology provides the best frequency response and relative phase available. Competing speakers are optimized in either the frequency domain (most common) or time domain. Only YG Acoustics™ has the ability to optimize both domains simultaneously.

Sonja™’s crossover uses ToroAir™ technology: in-house CNC-wound toroidal air-core inductors are unique in eliminating cross-talk (cross-contamination) common in crossover circuits. The result is preservation of high-frequency detail without harshness, brightness or sibilance.

Sonja™’s exquisite cabinet combines visual refinement with over-engineering. It is constructed of precision-machined aircraft-grade aluminum alloy. This material, using vibration-free pressurized assembly, allows for the most acoustically desirable enclosure achievable. The multi-layered structure is optimized for each module’s specific frequency range. This ensures the lowest vibration achievable, even at extreme volume levels.

FocusedElimination™ anti-resonance technology keeps mechanical losses lower than any competing speaker, by combining the minimized turbulence of a sealed design with the low friction otherwise associated with enclosure-free concepts.

YG Acoustics™ speakers are not voiced. All measurements are verified using extensive listening tests, but the speakers are not artificially manipulated. YG Acoustics™ speakers simply convey the recording – nothing more, nothing less.

The end-result: Sonja™ sets benchmarks in transparency, 3D-soundstaging, dynamics, bandwidth, inner-detail, and the natural sound of a live performance that YG Acoustics™ is famous for. This is all presented in a refined, elegant speaker with an exquisite fit-and-finish that is the showpiece of the world’s finest listening environments.




Sonja™ is available in four fully modular configurations, each of which can be expanded to the next, without the need to replace existing modules:
• Sonja™ 1.1 – an ultra-high-end compact speaker.
Available with or without a matching stand.

• Sonja™ 1C – a center-channel speaker.
Available with or without a matching stand.

• Sonja™ 1.2 – an ultra-high-end medium-sized floorstanding speaker.
Consists of Sonja™ 1.1 interlocked atop a matching bass module.

• Sonja™ 1.3 – the flagship; an ultra-high-end large floorstanding speaker.
Consists of Sonja™ 1.1 interlocked atop dual matching bass modules.

Speakers from YG Acoustics™’ Anat™ III, Anat Reference™ II and Anat Reference™ (serial #036 and upward) lines can be upgraded to Sonja™, without the need to replace the speakers. The products are mostly field-upgradeable, in a matter of hours.

Sonja™ is fully compatible with multi-channel audio and home-theater systems. Sonja™ speakers can also be combined with speakers from YG Acoustics™’ other lines for properly phase-coherent multi-channel systems.



±1 dB in the audible band
±5° relative phase throughout entire overlap
Exceptional pair-matching
Usable output extends from below 20 Hz to above 40 kHz

BilletCore™ ultra-high-rigidity woofers and mid-woofers
ForgeCore™ ultra-low-distortion tweeter
Sonja™ is fully-passive. A semi-active version is available for acoustically-problematic rooms
Proprietary DualCoherent™ crossover at 65 Hz and 1.75 kHz
Designed using software developed in-house
ToroAir™ inductors eliminate cross-talk
88 dB / 2.83 V / 1 m 2π anechoic
4Ω nominal, 3Ω minimum
Sonja™ 1.1 – 50x21x53 cm (20x8x21”) HxWxD
Sonja™ 1.2 – 129x33x63 cm (51x13x25”) HxWxD
Sonja™ 1.3 – 179x43x72 cm (70x17x28”) HxWxD
Sonja™ 1.1 / Sonja™ 1C – 57 kg (124 lbs) per channel unpackaged
Sonja™ 1.2 – 135 kg (296 lbs) per channel unpackaged
Sonja™ 1.3 – 230 kg (506 lbs) per channel unpackaged