Thuono Tonearm

Technical Features

Lenght: 12"

Total length: 368 mm

Pivot-stilus distance: 309 mm

Pivot-spindle distance: 296 mm

Overhang: 13 mm

Offset angle: 17.6°

VTA range: 55 mm

Mounting hole diameter: 30 mm

Connectors: DIN plug

Wiring: Pure silver

Anti-skating system: counterweight

Weight: 1000 g

Joints: ceramic bearings

UNLOCKING THE FULL POTENTIAL OF YOUR CARTRIDGE

For a cartridge to retrieve the finest details embedded in a record’s grooves, it must be coupled to an uncompromisingly rigid tonearm structure. Any microscopic flexing or structural compliance within the arm introduces distortions that obscure transient response, dynamic accuracy, and spatial resolution. Optimal rigidity is not merely about minimizing resonance—it is fundamental to preserving the integrity of the vibrational energy generated by the stylus, ensuring that nothing is lost to unwanted mechanical deformation. Our tonearm design eliminates soft alloy castings, instead utilizing a hybrid construction: an outer carbon fiber layer for resonance control, internally reinforced with titanium for exceptional strength and superior energy transfer. Additionally, we offer a titanium headshell option, which surpasses duralumin in both rigidity and resistance to micro-deformation. By further enhancing structural integrity at the critical cartridge interface, the titanium headshell combined with the reinforced tube ensures even greater detail retrieval, dynamic precision, and tonal accuracy—delivering an unmatched foundation for true high-fidelity reproduction.

THE CRITICAL ROLE OF HIGH-PRECISION BEARINGS.

Both the horizontal and vertical joints of Thuono tonearms incorporate ultra-high-precision ceramic ball bearings, selected for their exceptional smoothness and meticulously verified through manual inspection. These bearings are housed within mechanical components engineered to extremely tight dimensional tolerances, ensuring perfect insertion without slack or undue compression. The use of ceramic bearings grants an ultra-low level of resonances resulting in a cleaner, more transparent sound with superior micro-detail retrieval. The precision articulation of the bearing system combined with the rigid and highly accurate mechanical structure ensures unrestricted movement of the tonearm, preserving even the most delicate sonic nuances. Additionally, the exceptional wear resistance of ceramic bearings contributes to long-term performance stability, minimizing degradation over time and ensuring uncompromising fidelity throughout the lifespan of the tonearm.

OPTIMIZING RIGIDITY, DAMPING AND TONE BALANCE.

The materials selected for Thuono tonearms have been meticulously chosen not only for their mechanical properties but also for their influence on tonal balance and resonance control. While the cartridge operates with extremely low masses, the high-speed vibrations it generates can induce resonances that translate into micro-undulations within the tonearm, potentially compromising sonic clarity. To counteract these effects, Thuono tonearms utilize a hybrid construction designed to minimize unwanted resonance transmission and maximize structural integrity. The tonearm tube consists of a multi-material composition: an external carbon fiber layer for its superior stiffness-to-weight ratio and resonance control, reinforced by an aluminum sleeve to enhance rigidity and stability. Internally, a precision-engineered titanium tube provides additional structural reinforcement, optimizing energy transfer and reducing mechanical losses, resulting in a cleaner sound with improved dynamics. Strategically placed damping materials are incorporated at critical points within the tonearm to further suppress resonance, ensuring an uncolored and highly detailed sonic presentation. Additionally, carefully integrated brass components contribute to the refinement of tonal characteristics, subtly enhancing harmonic balance. Great attention has been devoted to the development of the counterweight, a critical component in achieving optimal sound performance. An improperly designed counterweight can transmit resonances from the cartridge, leading to degradation in sound quality. To mitigate this, the counterweight of the Thuono tonearms is constructed from a carefully selected combination of materials effectively damping vibrations while maintaining perfect integration with the tonearm barrel. This ensures that no dynamic energy is lost, preserving the full impact and articulation of the music. Its weight and dimensions have been meticulously engineered to achieve the ideal geometry, providing perfect equilibrium in mechanical balance for uncompromising playback accuracy. The internal wiring consists of ultra-flexible pure silver conductors, chosen for their superior conductivity and minimal signal loss, preserving even the most delicate audio details.

AZIMUTH, OVERHANG AND VTA CONTROL.

The headshell of Thuono tonearms is engineered to provide precise adjustability, ensuring optimal cartridge alignment for uncompromised tracking performance. The azimuth can be finely tuned to maintain perfect perpendicularity between the stylus and the record groove, obtaining a perfect channel balance without distortion. Additionally, slight overhang adjustments allow for precise stylus positioning relative to the record’s center, optimizing tracing accuracy and reducing tracking error. The tonearm height (VTA) is also fully adjustable, enabling fine calibration to match different cartridge profiles. Thuono tonearms are meticulously designed to achieve peak performance when paired with Thuono turntables. However, a universal mounting system is available, ensuring compatibility with a wide range of turntable configurations while maintaining the integrity of the tonearm’s performance characteristics.