Final Earphones FI-BA-SST25/35

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Final Earphones FI-BA-SST

Employs a silver-coated OFC cable. Delivers subtle, soft lingering sound field representation.
Achieves rich, three-dimensional spatially expressed sound reproduction deemed difficult with a balanced armature driver.Employs a single driver networkless direct connection circuit.Using an extremely complex assembly process possible because it is carried out at our own factory here in Japan, this flagship model unlocks the utmost potential of the single balanced armature driver.Silver coated cables are employed, making for beautifully lingering soft high frequencies while retaining the delicacy of BA-SS. A polished sound with natural power of expression. Two models have been prepared, one with a 3.5mm plug and one with a 2.5mm plug (3.5mm: FI-BA-SST35, 2.5mm: FI-BA-SST25).
AWARD
VGP 2018
Life style 
2018, Japan
VGP 2017 Summer
Life Style 
2017, Japan
BAM mechanism produces bass sounds and stereo spatial interpretations
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.
Original balanced armature driver unit
Since the BAM mechanism optimizes the flow of air within the housing, according to our own unique specifications, an opening has been established on the back of the driver unit, which is usually closed.
Specifications
Product code
FI-BA-SST35/FI-BA-SST25
Housing
Machined stainless steel
Driver
Balanced armature
Cable
Silver-coated OFC cable (2.5mm, 4-pole / 3.5mm, 3-pole)
Sensitivity
112dB
Impedance
16Ω
Weight
20g
Cord length
1.2m