On-board audio system for Roller CoastersOLS means "On Board Light & Sound". It's an autonomous system that brings powerful sound and dazzling lights to a new or existing ride.
Description: An innovative ultra-capacitor array feeds a thundering sound system and a powerful controller. After a few seconds charge in the station, the system can provide several thousand watts of audio, and control hundred of channels of sparkling LEDs, in perfect sync with the soundtrack. The powerful OLS controller keeps sound and effects in sync with the ride.