OLLO Audio S5X 1.1 Calibrated

Without VAT: $485.15
Delivery by request
Remote warehouse: 1 pcs. available (delivery in 14-20 business days).
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Reference class, open back, dynamic headphones with flat frequency response for binaural/immersive mixing and USC calibration, made in the EU.


  • Hand-picked and left / right matched transducers delivering accuracy and instrument separation. (+/-1dB SPL tolerance, pink noise, range 100Hz-10kHz in the 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.



  • Replaceable earpads with outer diameter of 95 mm, an inner diameter of 57.5mm and depth of 20mm, +/-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
  • The ex-centric and angled speaker in a conical radiation chassis with an optimal sound stage for the spatialization of objects in the binaural renderer
  • Frequency response tuned for best translation of HRTF spatialized information in your Atmos or stereo projects



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



  • Detachable braided silicone cable employing OFC core to ensure minimal signal distortion.
  • Colour labelled L and R jacks (Left is Black)
  • Ball-locking mechanics on the embedded 2.5mm jack plug
  • Screw-on adapter from 3.5mm to 6.3mm jacks


Optional Calibration Plugin Usc

S5X come with an optional individual calibration Unit Specific Calibration plugin. AU and VST3. Upgrading with the Waves NX room modelling and head tracking available.

  • Dynamic speakers
  • Neodymium magnets
  • Easy to drive even with smart devices - 50 Ohm
  • Detachable connection cable can be upgraded with custom made cables
  • Standard connection for any hi-fi gear (DVD, Home theatre amplifiers, smartphones, portable players, studio amplifiers) with TRS jack 3.5 or 6.3mm
  • Replaceable earpads
  • 360 earcups rotation
  • Headband with equal weight distribution
  • Fully serviceable with home tools
What's in the box?
  • OLLO Audio S5X 1.1 Calibrated
Style Over-ear
Headphones Type Wired
Open / Closed Semi-open
Frequency Range 15 - 22 000 Hz
Impedance 50 Ω
Sensitivity 106 dB SPL
Headphone Features Detachable Cable
Weight 420 g

Product instruction