Vitaly Fedorov

Have you ever wondered why two headphones exhibiting virtually indistinguishable frequency response curves can sound fundamentally dissimilar—one presenting a breathtaking, holographic three-dimensional soundstage where instruments occupy tangible physical space, while the other renders a flat, claustrophobic acoustic smear? The answer does not hide in steady-state decibels, … [Read more...] about Acoustic Baffle: How Acoustic Cavities Shape Phase Coherence

Have you ever closed your eyes during an intense listening session, only to be jolted out of the soundscape by a harsh, microscopic grain in the upper treble? That transient shattering of the auditory illusion often comes down to the microscopic battlefield of diaphragm material science, where two titans—Kevlar and Mylar—wage a continuous war for acoustic supremacy within the … [Read more...] about Kevlar vs Mylar: Harmonic Distortion and Ear Canal Resonance

For nearly a century, audio engineering has operated under a single dogma: headphone amplifiers must behave as near-zero-impedance voltage sources to maximize damping factor. Yet, when applied to the micro-electromechanical physics of balanced armature transducers, this sacred standard creates severe time-domain distortion, inductive phase smear, and violent group delay peaks. … [Read more...] about Balanced Armature Current vs Voltage Drive: Mitigating Group Delay and Phase Dispersion

Bone conduction technology promises a utopian auditory paradigm: high-fidelity acoustic transmission directly into the cochlea through cranial bone, leaving the ear canal completely unobstructed for total environmental awareness. Yet, anyone who has sat in a quiet room next to a listener wearing open-ear bone conduction headphones knows the embarrassing reality—they leak sound … [Read more...] about Analyzing Rear Vented Cavity Techniques in Bone Conduction Transducers

When planar magnetic headphone designers attempt to solve the low-frequency acoustic roll-off caused by finite baffle dimensions and dipole cancellation, they often reach for Baffle Step Compensation (BSC)—whether through analog shelving filters, passive equalization networks, or digital signal processing. Yet in the quest to restore a flat, authoritative bass response below … [Read more...] about Intermodulation Distortion in Baffle Step Compensation for Planar Magnetics: Acoustic Trade-Offs & Driver Linearity