FULL-FLEDGED PURSUIT OF SONIC ACCURACY.
Yamaha’s original ORTHODYNAMIC™ headphones captivated audiophiles in the 1970s, beginning with the famed HP-1. Taking advantage of the latest technology, we’ve redesigned this driver, which encompasses a thin film diaphragm with metal coil patterning. To minimize any degradation in sound quality, we’ve implemented various innovative measures. These include eliminating the fixed central structure of conventional headphones, ensuring shape retention by use of concentric circle corrugation and pattern reinforcement, and avoiding magnetic substances in the vicinity. All of these enable an authentic sound that is easy on the ears and yet ultra-responsive.
DELICATE, SMOOTH EXPRESSIVENESS.
The large housing that comfortably envelops the ear has ample internal acoustic volume. It features an open-back design for creating ideal airflow, thereby reducing adverse effects on the thin film diaphragm, and preventing sound reflections inside the rear cavity. This helps with eliminating undesirable resonance. Moreover, we’ve adopted a newly developed Japanese-made rolled plain Dutch weave stainless steel filter to control internal pressure in the housing, with an arch-shaped protrusion arranged inside the housing which functions as a reflector. These features allowed us to achieve exceptionally realistic reproduction of both instrumental and vocal sounds, and properly control those sounds throughout their initial attack and final decay.
FAITHFULLY RECREATING MUSICAL DYNAMICS.
The specially developed thin-film diaphragm is the culmination of repeated numerous prototypes, meticulous measurements, and rigorous analysis. It is manufactured by etching the voice coil with a unique pattern on both sides of the film and applying minute corrugation. This results in significant weight reduction from a conventional dynamic driver, providing outstanding responsiveness that fully brings out the subtle nuances and delicate ambiance in the music. Moreover, micro-perforation air dampers with high permeability arranged on both sides ensure that the diaphragm motion can be appropriately contained, allowing accurately controlled reproduction without degrading the vibrant dynamism of the music. In addition, the rounded shape devoid of any fixed points other than the outer circumference maintains uninhibited movement of the entire film and enables exceptionally full, yet clear low-frequency expression.
SONICALLY DENSE, YET TRANSPARENT. JAPANESE-MADE.
In order to regulate and maintain optimum pressure inside the housings, we’ve employed a rolled plain Dutch weave stainless steel filter of Japanese manufacture. Produced under strict air permeability control, this filter enables smooth air discharge and is the key element in creating the sound field expression we aspired to for the YH-5000SE. As a result, it achieves both a remarkable level of density and openness at the moment when the sound rises.