"It still has 50mm drive units, although the flux density of each driver’s neodymium magnet is lower and it’s not quite as sensitive at 98dB/mW.  Fostex’s ‘bio-dyna’ diaphragm still features, fashioned from bio-cellulose fibre, the properties of which include low density and a high Young’s modulus.  Fostex claims it's better than the plastic film typically used in headphone drive units, offering  “high-resolution reproduction”.

VERDICT: Comfortable to wear, distinctive in appearance and oozing class these headphones deliver an involving and intricate sound. They can be upgraded to balanced operation.

FOR

- crisp and detailed presentation with effortless timing

- balanced upgrade and replacement earpads available

- superb build quality

AGAINST 

-  slight treble emphasis

-  3.5mm connections ignored



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