THU23OCT2025
PartyPastThe Foundation X Optimal Mass
Esbirra Ibiza · Ibiza, Spain
22:00 – 04:00
Featured promoter
Optimal Mass
London · Bristol · Amsterdam
Optimal Mass keeps the rave circuit locked — soundsystem culture, festival takeovers and club nights for the massive.
8
Events
6
Artists booked
5
Cities
Global
Scene reach
Featured event
The Foundation X Optimal Mass
Get ticketsEsbirra Ibiza · 23 Oct 2025
About Optimal Mass
Optimal Mass has been wiring the circuit for years — from warehouse takeovers to festival main stages, keeping drum and bass and jungle culture front and centre.
Upcoming events
Featured artists
Cities on the circuit
Stay Locked
News, playlists, premieres and more — direct to your inbox.