OLLO Audio X1 1.0 – Dynamic open-back headphones designed for mixing and mastering, featuring a flat and honest frequency response, robust construction using eco-friendly materials, and individual USC calibration powered by AI processing. The neutral and flat sound signature has been perfected in close collaboration with over 25 award-winning audio engineers who have worked with Adele, U2, SIA, Lady Gaga, Usher, Depeche Mode, Sting, Björk and many others.
Specifications:
- Dynamic open-back headphones, supra-aural design
- Frequency range: 5 Hz - 22 kHz
- Sensitivity: 101 dB SPL (@ 1kHz RMS3dB)
- Impedance: ~32 ohm (works with any device)
- Driver diameter: 50 mm
- Neodymium drivers
- Diaphragms: Pu + PET type
- THD & 2nd: <0.05% & <0.02% @ 94 dB SPL @ 1kHz
- Inner/outer cup diameter: 57.5 mm / 95 mm
- Cup exterior finished in American walnut
- Earpad material: acoustic foam with eco-leather and velvet
- Headband material: stainless steel and silicon
- Connector: 3.5 mm jack with 6.3 mm adapter
- Detachable Y-cable, 3 meters long, with 2.5 mm jack connector
- Calibration using AI processing power
- Weight of 390 grams
- Included accessories: Y-cable, transport case & protection
Speaker / Driver:
- Neodymium dynamic speaker
- 50 mm diameter, composite diaphragm Pu+PET with patented design
- 32 Ohm impedance
- 101 dBSPL @ 1kHz RMS3dB @ 0 dBu 1ohm output - making them work with smart devices
- Matched left/right speakers (tolerance +/-1dB SPL, deviation, range 100Hz-10kHz in free field at a distance of 1cm)
- Replaceable with household tools
Acoustics:
- Cups with an outer diameter of 95 mm (3.75 inches), inner diameter of 57.5 mm (2.25 inches) and a depth of 20 mm (0.8 inches), +/-2.55 mm. Made from artificial leather and velvet.
- THD & 2nd <0.05% & <0.02% @ 94 dB SPL @ 1kHz with deviation source measured with IEC 60318-1 ear simulator.
- Frequency response variation in the band from 5Hz to 22kHz ~9.8 dBSPL +/- 1dB SPL using sweep and IEC 60318-1 ear simulator.
- Air pressure equalization front-back controlled with flow resistance Saati 3.2Ohms(²)/1cm².
- Ex-centric and inclined speaker in a conical radiation frame with an optimal sound stage for the best translation of instrument positions in stereo or immersive formats.
- Frequency response calibrated for the best translation of balance and artificially placed objects in immersive stereo or downmixed (binaural) projects.
Headband:
- Clamping force set to achieve frequency response matching the standard industry bitragional diameter of 14.3 cm (KEMAR) on the IEC60318-4 ear simulator.
- The artificial leather strap and the stainless steel spring covered with powder are both replaceable using household tools.
- 360-degree rotation of the headphones and automatic adjustment strap for quick and easy adjustments to head size
Cable:
- 2m length and lightweight detachable silicon cable with OFC enamelled core to ensure minimal signal distortion and long lifespan
- Screwable adapter from 3.5 mm jack to 6.3 mm jack (1/8 to 1/4 inch)
Calibration:
Calibration is the “last mile” in delivering a perfectly flat frequency response. All our headphones are very well tuned out of the box and measured as part of quality control. By measuring each unit individually, we can capture any deviation in sound quality that arises from material tolerances for a specific unit. Calibration fixes these and the frequency response beyond what is possible with acoustic design alone. The specific unit calibration can achieve an incredibly low tolerance of approximately ~ 1 dB at the selected target frequency. For illustrative purposes, generic software calibrations such as Sonarworks Sound ID or Waves NX can only achieve approximately ~3dB. Unit Specific Calibration II (USC II) includes a software plugin (powered by Realphones) and a calibration data file generated using the power of AI processing. The plugin comes in AU, VST and AAX format for Mac and Win users and is also available in standalone version. The calibration data file is in XPS format that allows manual export of exact EQ values to any third-party EQ plugin or DSP-enabled hardware; for example: RME TotalMix, Neumann Mission Control, UA console and others.Calibration includes:
- OLLO USC II Plugin (AU, VST, AAX)
- Standalone OLLO USC II application (Mac and Win)
- USC II calibration data file compatible with Realphones and Waves Nx
- Open data file for easy export to any third-party EQ or DSP-enabled hardware
