The first cone-based electrodynamic driver was invented by Chester Rice and Edward Kellogg at General Electric in 1925, and in principle remains the same to thisĭay.
#Bg radia 210i drivers
Traditional drivers are, in general, a very good universal solution for a wide range of applications that has been tested by time. Mechanical and electro- acoustical mechanisms and relationships in those drivers differ in some fundamental ways from typical common cone or dome drivers. Such diaphragms have extremely low mass, comparable with the mass of air load, vibrating along with the diaphragm.
The key mechanism in thin-film drivers is a very thin diaphragm made from polymer film/aluminum foil laminate (or just pure aluminum foil ribbon) that is uniformly driven more or less by either electrostatic (based on forces acting on electric charge in electric field) or electro-magnetic (using Lorentz force on a current-carrying conductor in a magnetic field} motor system. Juggernaut of headphones, when its engineers were tasked with developing the ultimate headphone, chose a thin-film electrostatic concept and developed its legendary flagship Orpheus, avoiding using any kind of voice coil-based drivers. Speakers, Stax, and Sonoma have taken leading positions in the high-performance headphone market.
Similar transducer technology has proliferated over the past 10 to 12 years in headphones where brands such as Audeze, OPPO, Hifiman, Meze, Mr. Many well-known loudspeakers from such brands as Infinity, Genesis, Apogee, Magnepan, Quad, KLH, MartinLogan, ESS, BG Radia, Wisdom Audio, SLS Loudspeakers, Adam Audio, Alcons, Philips, Foster, Sonigistix/Monsoon/n, Level 9/Eastech, and others have been praised for superior audio quality in mid and high-frequency bands. Over the years, the audio community has acknowledged that speakers based on drivers with thin-filmĭiaphragms deliver exceptional sound quality in mid and high-frequency ranges.
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