Floorstanding speaker YG Acoustics Sonja XV 3 Studio

Four-tower reference system with a hybrid Lattice tweeter and seven BilletCore drivers

The XV Studio 3 is a 4-way passive floorstanding loudspeaker built as four separate towers — two main and two bass — conceived as a more compact version of the flagship XV model. At the heart of the design is the hybrid YG Lattice tweeter with a 26 mm diameter, joined by seven BilletCore drivers with aluminium diaphragms and the most complex implementation of the Ultracoherent crossover the brand has used to date. The system is intended for installations demanding complete control over both the time and phase domains.

The enclosures are machined from aircraft-grade aluminium in a three-layer structure with constrained layer damping, produced to high precision in the manufacturer's own facilities in Colorado and Cambridge. The tweeter uses an airframe-type supporting structure made from a specially selected aerospace alloy, which contributes to exceptionally low distortion across a wide band and to wide angular dispersion with a larger optimal listening area. The midrange is handled by two 15 cm drivers and three 18.5 cm mid-bass drivers with neodymium motors, while the bass section uses a pair of 26 cm drivers with extremely high flux-density motors.

The third-generation crossover, dividing at 90 Hz, 360 Hz and 1.85 kHz, is optimised for phase matching, phase response and transient behaviour; relative phase stays within ±5° throughout the band where driver output differs by no more than 20 dB. It uses pure metal-foil capacitors, foil resistors and damped inductors with a computationally optimised layout that minimises interaction between components. The result is precise instrument localisation within a wide and deep soundstage, legible micro-detail and consistent timing across the entire bandwidth.

Usable response extends from below 20 Hz up to 40 kHz with low distortion throughout the range and outstanding pair matching. A sensitivity of 88 dB and an average impedance of 4 Ohms with a 3 Ohm minimum call for an amplifier with a stable current output. The weight of 145 kg per main tower and 135 kg per bass tower reflects the massive aluminium construction, which curbs enclosure resonance and aids dynamic stability at high levels.

Key features

• Configuration: Four-tower 4-way system with aluminium enclosure
• Tweeter: Hybrid Lattice 26 mm with aerospace airframe structure
• Drivers: Seven BilletCore drivers with aluminium diaphragms
• Crossover: Third-generation Ultracoherent, ±5° phase matching
• Response: Usable output from below 20 Hz to 40 kHz