[A special thanx goes to James. He sent me a brand-new pair, directly routed from Japan! I'd like to personally salute his commitment and passion, as he is truly doing a lot of favor for the headphile community.]
Final Audio Design's FI-BA-SS is a flagship model with the pinnacle of their proprietary BAM(Balanced-Air-Movement) technology implemented. Initially priced at eye-popping ¥100,000, it is known to have the best acoustic tonality among other models with BAM.
Previously, three different Final Audio Design's heaven series models, which are also BAM-driven, have been analyzed: Heaven A, Heaven C, and Heaven S. They indeed all exhibit very unique electroacoustic characteristics, but it turns out their overall performances are more or less the same in spite of huge differences in pricing.
In order to verify such acoustic superiority FI-BA-SS is known to have over its lower end models, as claimed by many of the owners, its electroacoustic properties will be assessed & compared.
CON: Unfortunately, FI-BA-SS is not even close to hi-fidelity. Then again, once funkiness goes extreme, the basic principle of electroacoustic engineering diminishes, and the judgement of good/bad sound turns into the matter of personal preference, as FI-BA-SS users find such distortion to be euphonic.
Quick measurement links
Headphone measurement data by brands:
AKG • Apple • Astrotec • Audeze • Aurisonics • Beyerdynamic • BOSE • Brainwavz • Brookstone • Creative
Earsonics • Etymotic Research • Fostex • Final Audio Design • Grado • Heir Audio • Hidition • HiFiMAN • JAYS • JVC
LEAR • LG • Martin Logan • MEElectronics • Maxell • Monoprice • NuForce • NVX • Ocharaku • Phonak • Radius
RHA • Rockit Sounds • Samsung • Sennheiser • Shure • SONY • STAX • Suyama • TDK • T-PEOS • Ultimate Ears
Wall of Shame (coming soon)