o.p.a. offers cool music, a cool atmosphere and cool people. only the opening times in the former electricity factory are quite uncool. due to french law the bar-club venue has to shut down at 02.00. but two hours later, the night owls queue again, because o.p.a. re-opens at 04.00. during the week unplugged sessions take place on a regular basis. at the weekend the bpm-frequency is turned up with house and techno sounds.