SYSTEM 4th BirthdayAlastair·EVENTS·25th February 2016 SYSTEM SOUND FOR SYSTEM PEOPLE SYSTEM 4th Birthday this Saturday at Dingwalls, London. Vinyl Only. No Sound Restrictions. 3 legends on the lineup. Doors open at 11 pm and lights on at 5 am. Not to be missed. Tickets available via Fatsoma. * If you bought a ticket for the original scheduled date, it is still valid.