- PRODUCTION DISCONTINUED IN SEPTEMBER 2020 -
The audio community all over the world accepted the S4 remarkably. But there’s always room for improvement, and as you already know, we take the mission to create the flattest headphones out there very dearly. Additional research and development, as well as feedback from our community led the development of the S4X reference headphones, the new, improved model for mixing and mastering.
Meet the second generation
S4X REFERENCE HEADPHONES
Based on S4 model with upgrades requested by OLLO community.
🔸 40% flatter frequency response.
🔸 50% more comfort for your ears.
🔸 Improved headband design.