FI-BA-SS Series

This flagship model with its balanced armature driver pursues ideal sound, eliminating compromise.
Through final's own unique technology that optimizes airflow in the housing, rich, three-dimensional spatially expressed sound previously deemed difficult
with a balanced armature driver until now is reproduced. Employs a theoretically feasible single driver and a networkless direct connection circuit.
Eliminating compromise in the pursuit of ideal sound, this series is handcrafted by Japanese engineers. The balanced armature flagship model.

Product Comparison

Product Name
Housing Machined stainless steel Machined stainless steel
Driver Balanced armature Balanced armature
Cable Silver-coated OFC cable (2.5mm, 4-pole / 3.5mm, 3-pole) OFC litz cable (3.5mm, 3-pole)
Sensitivity 112dB 112dB
Impedance 16Ω 16Ω
Weight 20g 20g
Cord length 1.2m 1.4m
Sound quality Subtlety is maintained; delivers soft high frequencies full of beautifully lingering sound. Deep, three-dimensional spatial representation. The precision of each and every sound and the beauty of the lingering sound


Employs a silver-coated OFC cable.
Delivers subtle, soft lingering sound field representation.


Eliminating compromise in the pursuit of ideal sound,
this product is handcrafted by Japanese engineers.