OLLO Audio

S4 or S4R upgrade to S4X → 99€ + shipping

Regular price €149,00
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Due to high demand currently unavailable. 
Notify me when the upgrades are available again:

For EU customers only. 

Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom.

Non-EU customers can order via email info@olloaudio.com! We'll check import duties before confirming.

The upgrades will be done as soon as we receive your headphones, no delay. Please refer to the diagram below for time estimates.

    With an upgrade, you get:
  • New headband
  • New earpads
  • New inner acoustics
  • New individual measurements
  • 5yr limited warranty
  • We do not return used parts with the exception of ear pads