Ollo S5X - Reference class, open back, dynamic headphones with flat frequency response for binaural/immersive mixing made in the EU.

SPEAKER

Hand picked and left / right matched transducers delivering accuracy and instrument separation. (+/-1dB SPL tolerance, pink noise, range 100Hz-10kHz in free field*)
50 mm, PET 25u membrane, 2 layered coil, 50 ohms,
Dynamic Neodymium speaker with 108dBSPL @ 0 dBu RMS 1KHz 30ohm output that makes them work with smart devices too.
Replaceable using home tools.

ACOUSTICS

Replaceable earpads with outer diameter of 95 mm(3.75inch), inner diameter of 57.5mm(2.25inch) and depth of 20mm(0.8inch), +/-2.55mm.
Perforated hybrid artificial leather and velour earpads to control flow resistance around the earpads seal resulting in smoother response through all frequency bands and improved heat dispersion.
1kHz @ 85dBSPL sweep THD < 0.074%, Variation in frequency response in band from 20Hz to 20kHz ~12 dB SPL* pink noise.
Front to back air pressure equalization controlled with Saati flow resistor 3.2Ohms(²)/1cm²
Ex-centric and angled speaker in a conical radiation chassis with optimal sound stage for the spatialization of objects in binaural renderer
Frequency response tuned for translation of immersive mix between binaural and speaker setup

HEADBAND

Artificial leather strap
Clamping force set for target frequency response on industry standard bitragional diameter of 14.3cm (KEMAR)
Stainless spring steel with powder coating
360 earcups rotation with sliders for head size adjustements
Strap and steel headband are replaceable using home tools

CABLE

Detachable braided silicone cable employing OFC core to ensure minimal signal distortion.
Color labeled L and R jacks (Left is Black)
Ball-locking mechanics on the embedded 2.5mm jack plugs
Screw on adapter from 3.5mm to 6.3mm jacks (1/8 to 1/4 inch)
WARRANTY
5 years limited warranty (Earpads and cable are excluded due to the nature of exposure)

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