With balanced armature driver units, iron is driven to produce sound, and as such, these drivers face a number of problems, amongst which are "proving tiring to listen to", "having sound that is subtle and beautiful, but lacking in depth and being flat" and "lacking bass interval". At final, we decided to focus on developing technology for the reproduction of bass tones and three-dimensional space with the full-range reproduction of a theoretically unproblematic single driver unit, rather than taking things in a multiway direction. We went back to the beginning and reviewed the performance of the balanced armature driver, focusing our attention on something we had previously overlooked ? airflow inside the housing. We developed BAM (Balancing Air Movement), a mechanism that optimizes airflow inside the housing through the creation of an aperture in the driver unit, which is usually sealed. 

While achieving bass tones and deep, three-dimensional spatial representation, which proved difficult with single driver full-range reproduction, we achieved a BA type that at the same time made for natural listening the user doesn't tire of.

Balanced armature driver unit developed by our company for optimal use as a tweeter. We've paid special attention to our choice of materials used in our pursuit of sound quality, utilizing a permalloy with a high level of magnetic permeability in the magnetic circuit.

Product code    FI-SO6BD3

Housing           Stainless steel / ABS

Driver              50mmΦ dynamic + balanced armature

Sensitivity        105dB

Impedance       8Ω

Weight             480g

Cord lengt        1.5ｍ